Paper Chemical Industry "Twelfth Five-Year" Development Plan (Extract)

I. Status Quo and Development Trends of the Industry Development (I) Industry Status The paper chemicals industry has formed a brand-new high-tech industry in China. In 2009, the total output of paper and board in China reached 86.4 million tons. The sales of papermaking chemicals in China were roughly 50 billion to 60 billion yuan, and the profits and taxes were 10 billion to 15 billion yuan, driving 1.5 trillion yuan in downstream industries. yuan***. From the perspective of national policies, papermaking chemicals projects have been listed by the National Development and Reform Commission as a guideline for the country’s priority areas for high-tech industrialization. In the project guidelines for technological innovations of small and medium-sized enterprises issued by the Ministry of Science and Technology, papermaking chemistry Products have also been included in key development areas.

In paper industry, the application of papermaking chemicals plays a decisive role in the quality of paper and economical production. They can give various excellent special properties (such as water resistance, oil resistance, wet strength, smoothness, printing Adaptability, softness, etc., enable poorer fiber raw materials to produce thinner, whiter, stronger papers; they optimize the production process and increase the speed of the paper machine.

Due to the strong growth of China's paper industry, almost all international pulp and paper chemicals companies have entered the Chinese market in the form of offices and joint ventures (or wholly-owned) companies. Domestic paper and chemical companies are also growing in the market competition. According to incomplete statistics, there are more than 1,000 papermaking chemicals companies in the country, which are concentrated in the coastal areas where papermaking industry is developed and in Guangxi, Henan, Hubei, Hunan, Jiangxi, Sichuan and Northeast China. On the whole, compared with the highly centralized papermaking chemicals market in the world, China's papermaking chemicals market is still in a highly decentralized state, with a large number of companies and a relatively small scale.

(2) Main problems and constraints 1: Weak innovative capabilities, poorly targeted varieties, low number of products, and repeated low levels of technology.

From a variety point of view, although many product varieties have been produced domestically, due to poor product targeting, this not only limits the scope of application, but also does not allow the scale of production. In terms of product quality, there is still a certain gap with foreign countries. In particular, with the advancement of the papermaking industry, the application of large-scale high-speed paper machines poses higher requirements for the quality and stability of papermaking chemicals.

2: The production scale of the company is too small, there is a significant gap in technology compared with the international large enterprises, and large-scale backbone enterprises supporting the whole industry are still in formation.

3: Research on application technology of products is still in its infancy.

Most domestic companies lack professional application researchers and test equipment. Application technology generally only stays in the simple application of a single chemical, and cannot achieve the effect of comprehensive application of multiple chemicals and coordinated operations. However, due to the lack of application technology, Users are concentrated in small and medium-sized paper mills.

4: Some new varieties needed for energy saving, emission reduction and clean production in paper industry have yet to be developed.

(III) Development trend of the industry 1: The papermaking chemicals industry will show a trend of faster growth.

With the needs of national economic development, China's paper industry will continue to maintain steady growth. From the end of the “Eleventh Five-Year Plan” period to the beginning of the “Twelfth Five-Year Plan” period, a batch of key projects in the paper industry will be put into operation one after another, such as the annual output of Zhanjiang Chenming Paper Co., Ltd. 700,000 tons of commercial pulp and 450,000 tons of high-end cultural paper projects, APP Jingui Paper produces 300,000 tons of pulp annually, Zhejiang Rongcheng Paper Industry Co., Ltd. annually produces 300,000 tons of premium linerboard and 400,000 tons of high-strength corrugated paper projects, Guizhou Chitianhua Paper Co., Ltd. will annually produce 200,000 tons of bamboo pulp project, Shandong Huatai Paper Co., Ltd. coated paper project, Nine Dragons Paper Co., Ltd. packaging paper project, Hengan Group living paper project, etc., will bring China's papermaking chemicals Huge room for growth.

2: The industrial scale, structure and layout have been further optimized to form a batch of large-scale backbone enterprises supporting the entire industry.

Papermaking chemicals have formed a new industry in China. With China's reform and opening up, some of the world’s most highly regarded companies have come to China to engage in papermaking chemicals. These large companies have entered the domestic papermaking chemicals market with their advanced technology, strong financial strength, and the experience and advantages of global operation. Under such circumstances, domestic paper and chemical companies will further focus on industrial capital optimization, carry out joint, reorganization and merger of enterprises, adjust industrial structure and layout, increase industrial scale and strength, and increase international competitiveness, thus forming a batch of Support large-scale backbone enterprises in the industry.

3: Strengthen the construction of technological innovation capabilities, develop new products, new processes, and new technologies with independent intellectual property rights.

Resources, environment, and energy are currently the three major issues faced by the paper industry. For example, due to the protection of forest resources, the conflict between supply and demand of domestic fiber raw materials, the use of recycled fiber is increasing year by year; to protect the environment and reduce waste water The closed white water recycling process adopted for the discharge; to meet the needs of the national economic development, to optimize the industrial structure to improve the quality of paper or to study new varieties; to increase the efficiency of the production of large-scale paper machine, high speed, etc. New and higher requirements have been put forward for the development and application of papermaking chemicals. New products, new technologies, new processes and supporting application technologies for various papermaking chemicals are emerging.

(1) Chemicals for pulping In recent years, the global waste paper recovery rate and waste paper have rapidly increased in the proportion of papermaking raw materials. Due to the scarcity of forest resources and the shortage of wood pulp resources in China, in 2009 China's recycled fiber consumption reached 49.39 million tons, which accounted for 62% of the papermaking raw material ratio, and it is on the rise. Waste paper deinking chemicals are hot spots in the world today. The development of new types of flotation waste paper deinking agents, biological deinking technologies, and related supporting chemicals are the current trends in pulping chemical technology development.

(2) Papermaking process chemicals Due to the environmental protection requirements of papermaking enterprises, in order to reduce the discharge of papermaking wastewater, many paper mills (especially large paper mills) have higher and higher levels of white water recycling, and the amount of fresh water used in the papermaking process The reduction has greatly increased the increase in the pH of the papermaking system, the increase in impurities, and the increase in conductance. As a result, the entire papermaking system of paper mills has become very complicated, and the cost-effective retention aids and retention aids have been pursued. The system and the elimination of obstacles to the production of chemicals are the focus of the current development of world papermaking chemicals.

(3) Functional chemicals Functional chemicals refer to a wide range of chemicals that can impart various special excellent properties (such as water resistance, oil resistance, wet strength, smoothness, printability, flexibility, etc.) to papers. ,a variety of. Some of them give the paper a variety of excellent special properties (such as water resistance, oil resistance, wet strength, smoothness, printability, softness, etc.); some can produce thinner, whiter with poor fiber raw materials More secure paper with high economic value. Therefore, chemicals such as pulp bleaching chemicals, new sizing agents, and paper wet and dry reinforcing agents have become the focus of research and development.

(4) Coating process chemicals Used in high-grade coated paper production of new coating adhesives, defoamers and so on.

(5) Water treatment chemicals In the face of increasing attention to environmental protection, the demand for white water treatment and reuse of various water treatment chemicals required for the treatment of papermaking wastewater is increasing.

4. Papermaking chemicals are specialty chemicals that are key to application technology.

According to international practice, some large-scale paper mills do not assume the issue of papermaking chemicals. As a result, paper-making chemicals industry is required to provide first-class products and perfect on-site application services in accordance with international practice. This part of the work needs paper chemistry. Product manufacturers solve the problem through post-sales technical service (dispatched at the factory). At the same time, the comprehensive application technology research of multiple chemicals will be the top priority for the development of papermaking chemicals.

II. Guiding ideology, basic principles and objectives (1) Guiding ideology In-depth implementation of the scientific concept of development, strengthening the industry's capacity for independent innovation, and actively carrying out research on major key and common technologies in the industry, and obtaining a batch of self-directed knowledge on the national conditions of China's paper industry. The new products, new technologies and new technologies of property rights have reached or approached the international advanced level in some important varieties. Through market regulation and macro-control of the industry, a papermaking chemical industrial system suited to China's national conditions will be established, and scale, intensive, high-tech development will be promoted, and industrial structure upgrade will be promoted, so that the overall papermaking chemicals industry in China will have a larger leap.

(II) Basic principles China's papermaking chemicals industry will be a period of great development in the next 5 to 10 years. The scale of papermaking enterprises' production, the application of modern large-scale high-speed paper machines, and modern papers will bring about high-grade paper and variety of products. The rapid development of chemical and modern printing technologies has brought tremendous development space and opportunities to papermaking chemicals.

China's paper chemicals industry must adhere to the principle of combining scientific and technological innovation with industrial rejuvenation. Give full play to the leading role of science and technology and support, speed up the transformation of growth methods, promote the upgrading of industrial structure, increase the proportion of medium-to-high-grade products, promote the upgrading of products, and scale, specialization, and serialization.

We must adhere to the principle of combining current issues with long-term development. In response to the existing problem gaps, we must address both the symptoms and the causes, and in accordance with the requirements of focusing on leapfrogging and leading the future, the papermaking chemicals industry should embark on the path of sustainable development.

Adhere to the principle of combining technology introduction and independent innovation. Strengthen key and common technology research, enhance independent innovation support for industrial development; increase international technical exchanges and cooperation, introduce and digest international advanced technologies, promote industrial technological progress; strengthen technological transformation and promote industrial technology systems And integration.

We must adhere to the principle that enterprises should be the mainstay, the market should be oriented, and industry-university-research-research institutes should be combined to give full play to the basic role of the market in allocating resources. The enterprise is the main body of innovation, and guides all kinds of innovation elements to gather in the enterprise, so that the enterprise truly becomes the main body of the research and development investment, the main body of the technology innovation activity implementation and the main body of the innovation achievement application.

(III) Overall Development Goal 1. Breakthroughs have been made in the establishment of an industry innovation system, and a scientific and technological innovation platform focusing on national engineering technology research centers, national key laboratories, state-level enterprise technology centers, and personnel training platforms focusing on key universities and colleges have been formed.

2. The ability to independently innovate has significantly increased, and breakthroughs have been made in the research of major key and common technologies in the industry. A group of new products, new processes, and new technologies with independent intellectual property rights have been developed, reaching or approaching the international advanced level in some important varieties.

3. We will vigorously promote energy-saving, emission-reduction and low-carbon production technologies and strive to promote clean production.

4. The market regulation and macro control of the industry have achieved initial results. The modernization management of enterprises and the management of product quality have gradually improved to form a group of key enterprises in the industry.

Third, the development direction and tasks (A) key development direction 1. In response to the national conditions of China's papermaking industry's fiber raw materials, we will vigorously develop non-wood fiber and recycled fiber specialty chemicals and key common technologies.

China's papermaking industry is facing a serious shortage of papermaking fiber resources. In 2009, China's total pulp consumption was 79.8 million tons, of which 18.16 million tons were wood pulp, accounting for 23%, 11.75 million tons of non-wood pulp, accounting for 15%, 49.39 million tons of waste paper pulp, accounting for 62%, non-wood fiber and waste paper recycling Fiber has become the most important fiber raw material in China's paper industry. Compared with wood fiber, non-wood fiber and waste paper fiber have the characteristics of low fiber strength, high water retention value, many small fibers, and high content of heterochemicals, which seriously affect the quality and grade of paper. There are considerable differences between wood fibres and non-wood fibres and waste paper fibres, which necessitates the development of non-wood fibre and waste fibre fibre special chemicals such as special reinforcements, retention aids, filter aids, neutrals With sizing agents, surface treatment agents, and coating adhesives, the surge in recycled paper demands more urgently for specialty chemicals for recycled paper.

In view of the national conditions of China's paper industry using non-wood fibers and waste paper fibers as main fiber raw materials, during the “Twelfth Five-Year Plan” period, we must vigorously develop non-wood fiber and waste paper fiber special chemicals and key common technologies to make our country’s non-wood fibers Papermaking and waste paper fiber papermaking technology has reached the international advanced level.

2. In view of the severe environmental protection issues in China's paper industry, it is necessary to vigorously develop the key chemicals and application technologies for the comprehensive treatment of papermaking wastewater. For a long time, the paper industry in China not only produced large quantities of water, but also produced large amounts of production wastewater and was not well recycled and effectively managed. , causing serious pollution to the environment.

The papermaking process is a complex chemical and physical process. The entire process from pulping to papermaking requires clean production or green process production. It is inseparable from various paper-making environmental protection special chemicals and various environmental protection measures. In view of the severe environmental problems in China's paper industry, during the “Twelfth Five-Year Plan” period, it is necessary to vigorously develop key chemicals and application technologies for the comprehensive treatment of papermaking wastewater.

3. In view of the low grades of China's paper industry products, mainly in the middle and low grades, especially the backward national conditions of special papers, it is necessary to vigorously develop key papermaking chemicals and application technologies for high-grade paper and specialty papers.

High-grade paper and specialty paper, which are highly dependent on paper-making chemicals, are China's tight-selling products. They are also high-margin areas of the paper industry and the goals of transformation and upgrading. With the rapid economic development and the improvement of people’s living standards, people’s demand for high-grade paper and specialty papers has been increasing year by year. The development of digital technologies, for example, has prompted the demand for digital papers to accelerate; and fruit packaging papers can make fruits more vivid. Delicious; modern housing security decoration, requires the development of flame-retardant decorative paper; in addition there are thermal paper, anti-static paper, conductive paper, anti-counterfeit paper, etc. all require special special chemicals. During the “Twelfth Five-Year Plan” period, we must focus on the development of key surface chemicals for high-grade paper that improve the surface strength and printability of paper, as well as wet strength papers, high-end household papers, fire-retardant papers, security papers, and conductive papers with special functions. , Luminescent paper, decorative paper, food and fruit packaging paper and other specialty papers for key chemicals and application technologies.

4. In order to improve the technological scale and structure of papermaking industry in China's paper industry, it is necessary to increase the development of new products, technologies, and processes for papermaking chemicals, focusing on the development of scale, specialization, and serialization.

China's papermaking industry has entered a period of rapid development. At present, a group of excellent companies have taken the lead in the transformation from the traditional papermaking industry to the modern papermaking industry. Papermaking technology and equipment have also reached the world's advanced level. A paper-making enterprise with an annual output of 400,000 tons needs 8,000 to 20,000 tons of fine chemicals for papermaking. If there are no large-scale paper-making chemicals companies, it will not be able to meet its demand. On the other hand, papermaking chemicals are used in spite of the Less, but it has a great influence on the quality of the paper and the operating conditions of the paper machine. Therefore, modern paper-making companies have significantly increased the production, quality, and stability of paper-making chemicals. However, China's papermaking chemicals are still in the early stages of development. Problems such as low output, unstable quality, few varieties and poor specificity are widespread. In order to meet the needs of high-speed development of the paper industry, we must proceed from the current pattern of small-scale and single-use products. Large-scale, specialization, serialization development.

In response to the demand of China's papermaking industry and the current state of the paper chemicals industry, during the “Twelfth Five-Year Plan” period, it is necessary to strengthen the development of new products, new technologies, and new processes for papermaking chemicals, and vigorously develop the medium alkaline sizing agent and special surface. Chemicals, sediment control agents, new retention aids and filtration systems and other new products of papermaking chemicals with independent intellectual property rights, focusing on the development of scale, specialization, serialization, and reaching international advanced level in some important varieties.

5. In response to the current situation of energy-saving, emission-reduction and low-carbon production in the industry, we will vigorously develop key environmental protection technologies and cleaner production technologies common to paper chemicals.

Papermaking chemicals belong to the new field of fine chemicals, and there are many types of varieties. In addition to the late start in China, rapid development has not attracted enough attention to energy-saving, emission reduction and low-carbon production of paper-making chemicals. Many companies have environmental problems. In the development process, we must fully understand the importance and urgency of energy-saving, emission-reduction and low-carbon production in the industry so that the industry can embark on the path of sustainable development.

In light of the current situation of energy-saving, emission-reduction and low-carbon production in the industry, during the “Twelfth Five-Year Plan” period, it is necessary to vigorously develop common key environmental protection technologies and clean production processes for several major types of chemicals such as modified starch, polyacrylamide, and sizing agents.

(B) The main task 1. Papermaking chemicals Common key environmental protection technologies and clean production processes (1) Continuous automated clean production technology of modified starch for papermaking The molecular structure of starch is similar to that of fibers, with good affinity and obvious effects, and comes from natural resources. The average amount of modified starch in developed countries accounts for about 2% of the output of paper and paperboard. Some paper grades are even as high as 6% to 8%. They are mainly used for wet end addition, interlayer spraying, surface sizing and coating adhesion. According to reports, the United States has used more than 1.3 million tons of modified starches each year, and Japan has reached more than 500,000 tons. The total amount of papermaking modified starches in the world has reached more than 5 million tons. In 2009, China's papermaking output reached 86.4 million tons, and with 2% added, the market potential can reach more than 1.7 million tons.

Traditional modified starch production processes include dry and wet methods. With an annual output of several hundred tons to several thousand tons, the scale is small, the facilities are backward, and environmental protection issues are outstanding. The research and development of modified starch requires special equipment and equipment. China has no supporting equipment yet. In the production process, starch involves many powder technology and engineering equipment, and most of our country is still blank. The backward process equipment is often difficult to produce high-quality stable products. Poor product quality stability and lack of product competitiveness. Take the papermaking industry as an example. The speed of modern paper machines is 1500 to 2000 meters per minute. Once the product quality is unstable, problems can cause huge economic losses. This is also the reason why most high-speed paper machines in China still use imported modified starch. .

The continuous automated cleaning production process of modified starch for papermaking overcomes the defects of large pollution, high consumption of chemical reagents, high energy consumption, low production capacity, high production cost, and severe demand for public works during the traditional chemical modification, and achieves the following defects: Uniform reaction, on-line control, stable product quality, high reaction efficiency, low energy consumption, low cost (including investment cost), and environmental protection. Through continuous application of key equipment integration technology, powder fluidization technology, rapid catalytic continuous reaction technology, automatic control technology, and rapid quality control technology, the implementation of key technologies to achieve continuous automated clean production process.

(2) Environmentally-friendly AKD wax and its continuous production technology The alkyl ketene dimer (AKD) sizing agent is an important wet-end chemical. Its role is to make paper and paperboard obtain water resistance. Most are used for writing, printing, packaging and construction paper and board. In 2009, China produced about 60,000 tons of AKD wax per year, with an annual output value of about 1.2 billion, which is one of the products with a relatively large production value in the field of paper-making chemicals.

The traditional AKD wax uses stearic acid to react with ****, and the intermediate is self-polymerized in ** solvent to produce the production process of alkyl ketene dimer (AKD). In this process, due to the low reaction efficiency of ****, there are many by-products containing phosphorus, which can not be recycled, causing environmental pollution; due to self-polymerization in ** solvent, the AKD wax per ton contains 1.8% **,** It is a carcinogenic substance that cannot be metabolized in the human body and accumulates in the liver. This poses a direct danger to operators and paper users. Therefore, it is an inevitable trend to improve traditional production.

Environmentally-friendly AKD wax and its continuous production technology will be innovative in the acyl chloride process, solvent-free production technology and continuous production process. It will effectively reduce environmental pollution and achieve continuous automated clean production through new types of reaction equipment and automated production processes. Process.

2. Non-wood fiber and waste paper fiber specialty chemicals and key common technologies (1) Network type paper dry reinforcing agent With the integration of China's world economy, the demand for export packaging paper and paperboard for various commodities has increased significantly, 2009 The total output of packaging paper in China was 5.75 million tons, an increase of 2.68% over the previous year. The total output of containerboard was 17.3 million tons, an increase of 13.07% over the previous year, and the total output of corrugated paper was 17.15 million tons, an increase of 12.83 over the previous year. % In order to save energy and reduce emissions and protect the natural environment, the domestic packaging paperboard and corrugated paper currently use recycled fiber. Due to the short secondary fiber pulp fibers, the dry strength of the paper and paperboard produced is poor and it is difficult to reach the market. Requirements for dry strength indicators. Network-type paper dry reinforcing agent can greatly improve the tensile strength and compressive strength of packaging paper and paperboard (including kraft linerboard, corrugated base paper, etc.) for secondary fiber production, so that it can meet the requirements for export commodity packaging. Can produce high-grade cardboard (such as paper cup base paper) with special requirements such as stiffness and folding-resistance, which can change the condition of previous reliance on imports; it can increase the length of cracked and cut-length of thin paper, or maintain constant index of cracking and breaking. Under the circumstances, the amount of added wood pulp is reduced, the use of secondary fibers is increased, and the breakage, lint-dropping and powder fall of the paper are reduced, and the printing adaptability of the paper is improved.

The web-based paper dry reinforcing agent is made into a dry reinforcing agent having a network structure, a plurality of active functional groups and capable of forming a crosslink with starch under the action of a catalyst through an aqueous solution radical polymerization and a polycondensation reaction. Through the interaction with starch under the action of the catalyst, a huge network structure is formed, which solves the problem of low molecular weight of the starch and the formation of fewer joints, and the reinforcing effect, especially against the tensile strength, is weak. At the same time, the advantages of low cost and reproducible resources are utilized, and the enhancement effect thereof is much higher than that produced by physical miscibility between starch and conventional polymers.

(2) New anti-jamming dry enhancer Amphoteric cationic acrylic acid-acrylamide water-soluble polymer China is a country with a severe shortage of forest resources. The papermaking industry uses non-wood fiber and waste paper as the main raw material for fiber, in recent years, it has increased paper. The quality and grade of wood pulp have increased, but it still accounts for only 23% and most of them are imported. With the changes in national environmental protection and industrial policies, the closed circulation of water used in the production of paper mills has become a general trend. Various anionic trash, metal ions, resins, and impurities in paper pulp will increase, which will seriously affect the paper quality of paper mills. And normal production, so the development of special anti-jamming dry enhancer has become a matter of no delay.

The novel anti-interference enhancer amphoteric cationic acrylic-acrylamide water-soluble polymer is a type of water-soluble high-molecular polymer having a network structure with both anionic and cationic functional groups. The enhancer itself will act on the anionic or cationic structure depending on the charge in the system to increase the strength of the paper, so it has good anti-interference properties and self-regulatory effect to improve the stability of the paper machine operation for paper mills. Improve product quality, stabilize production, increase the degree of water recycling in paper mills, achieve water conservation, and clean production has very important practical and economic value.

3. Research on key chemicals and application technologies for comprehensive treatment of papermaking wastewater (1) Comprehensive treatment technology for papermaking wastewater The paper industry in China not only has a large amount of water for production, but also a large amount of production waste water is not well recycled and effectively managed. According to the statistics of the Ministry of Environmental Protection, In 2008, China's pulp and paper and paper products industry had a total water consumption of 10.896 billion tons, wastewater discharge amounted to 4.077 billion tons, accounting for 18.76% of the total industrial wastewater discharge, and chemical oxygen consumption (COD) of 1.28 million tons. , accounting for 31.82% of the total industrial COD emissions of the country, and there is a huge pressure on environmental protection.

The comprehensive treatment technology of papermaking wastewater is achieved through the integration of chemical and biological, organic and inorganic, synthesis and compounding technologies, and the combination of source control and end treatment to achieve comprehensive treatment of papermaking wastewater. In the aspect of source control, it is necessary to focus on the development of new types of highly efficient retention aids and filter aids, interlayer reinforcing agents and surface sizing agents with high fiber binding strength and application technologies, and the retention of fine fibers and fillers as well as chemicals themselves as much as possible. Paper, to reduce the papermaking wastewater load, while improving the quality of paper; In the end of the governance, we must develop high-efficiency wastewater treatment chemicals and its application technology and equipment, and strive to make the paper industry tons of paper water consumption and drainage to the international advanced level.

(2) New type of defoamer for papermaking industry The development of defoamer in China started late. It was only in the seventies and eighties of the last century that the company began to get involved in this field. The defoaming problem has always been a difficult problem in the process of papermaking black liquor processing and papermaking. There is a widespread problem that antifoaming of domestic antifoams is not ideal, and the foam suppression time is short. This not only affects normal production, but also increases raw materials and energy consumption. Workers are labor intensive and increase pollution. The imported alkali-resistant defoamer has a fast defoaming speed and long foam suppression time. For example, during the use of the washing and defoaming agent for papermaking black liquor, the active ingredients and products of the domestic antifoaming agent will suffer from such factors as: chemical damage and instability of the emulsion system compared to the advanced level in foreign countries. In turn, demulsification, oil-flooding, etc., eventually lead to the loss of anti-foaming effect. To achieve the same defoaming effect, the amount used differs by five to ten times. It can be seen that the use of ordinary defoamers in paper washing is already a waste of resources.

High temperature and alkali resistant organic silicon antifoaming agent series products are suitable for the field of papermaking wastewater treatment under high temperature and strong alkali environment. The product adopts a high-efficiency alkali-resistant anti-foaming performance modified silicone from the molecular structure design, develops an emulsion system with good alkali resistance, and is supplemented with a stabilizer and a matching agent to improve the stability of the defoamer during operation. To achieve the international level of similar products.

The non-silicone defoamer in the aqueous phase, abandoning the idea of ​​using kerosene and silicone as raw materials, adding and condensing high carbon alcohol as the starting material, and obtaining some new compounds that contribute to defoaming, and then these new compounds Disperse in water to form O/W emulsion. During the development process, the product fully takes into consideration both defoaming properties and stability (ie, safety), so that it does not cause problems such as blockage of the slurry, paper breakage, and the occurrence of transparent spots on the paper, and it has to be ahead of the domestic like in quality. product.

4. Structural Optimization and Technology Upgrade of Paper Chemicals (1) Liquid Fluorescent Brighteners and Fluorescent Brighteners for High-Whiteness Papers Large-scale paper mills must inevitably adapt their technical requirements to the products they use. . The use of liquid brighteners is an inevitable trend. With the increase in the size of paper machines, there is a demand for brightener products that can be continuously added, and at the same time, different types of paper make papermaking whitening agents more and more specialized. At present, a small number of international and domestic manufacturers use cyanuric chloride, DSD acid, sulfanilic acid and diethanolamine three-step condensation liquid fluorescent brightener. However, the product obtained by the above process shows that the maximum whiteness of the paper in the application is not high, and the colored light is glaucoma, which causes the surface of the paper to be dark in color. At the same time, the current domestic manufacturers are generally smaller than the production scale, and the production process is relatively backward. The acidification process is basically adopted. The pollution is large and the product yield is low, which can not meet the requirements of large-scale and super-large-scale papermaking enterprises with large quantities and uniform quality.

The liquid optical brighteners using DSD acid, cyanuric chloride, m-(p-aminophenyl) sulphonic acid, diethanolamine, etc. as raw materials, are adjusted by the ratio of the intermediate and the opposite to obtain a new chemical structure product. Innovation. The product will incorporate m-aminobenzene sulfonic acid and p-aminobenzene sulfonic acid into the reaction in a certain proportion to make the whole system play a dual role, which not only ensures the water solubility of the product, but also makes synergistic effects of two different structure whitening agents. , change the color, higher whiteness.

(2) New paper surface sizing agent With the improvement of papermaking production technology and the upgrading of papermaking equipment, the application of surface sizing agents has become more and more widespread. Surface sizing has low sizing costs and can reduce the internal sizing of pulp. Reduced paper strength caused by the agent, contamination of the paper machine, and white water load under the net; can significantly improve the surface properties of the paper, such as surface strength, water resistance, two-sidedness, smoothness and paper printing adaptability, and can greatly improve the paper And other physical strength of cardboard, such as ring pressure, burst strength. The surface sizing agent is basically left on the paper sheet, which effectively reduces the white water load and is of great significance for environmental protection, energy saving and consumption reduction.

The new AKD surface sizing agent uses AKD as the main raw material, starting from ripening performance, reinforcing performance and anti-jamming performance, and the modified surface sizing agent product modified through the process, the product must be novel in the production process design. Innovation, no waste discharge, in line with safety and environmental protection requirements, the use of non-toxic and harmless raw materials in the production process, the production process of non-toxic intermediate products, the end product is non-toxic harmless, no secondary pollution to the environment, in line with clean Production requirements.

(3) New-type environmentally friendly coating adhesive for high-grade paper Coating and coating is the process of mixing the adhesive with pigments, inorganic fillers and additives on the surface of the paper. Coating adhesive is a key factor influencing the properties of coated paper. Its role is to make the coating pigment composition combine with each other while bonding with the surface of the base paper, and can adjust the balance of absorption, solidification and gloss of the printing ink; The coating also plays the role of protective colloid, controls the stability, fluidity and film formation of the coating, making the coating smooth and bright.

New environmentally friendly coating adhesives should be based on natural biomass resources. Through independent innovations such as substitution, degradation, and composite synergistic modification technologies, the binders have a variety of ion groups and potential balance characteristics, and have high The adhesive force, low migration, the formed film is flexible and elastic, and has good dispersibility and compatibility with the pigment; the active group component can be combined with glyoxal, formaldehyde, MF resin , UF resin reaction, to form a good water resistance; can prepare high solid content coatings, has good fluidity, coating stability, good water retention, can be used for blade coating, production of coated paper gloss, smoothness , Grip strength, ink absorption is good; can improve the stiffness of the paper; low cost, basic non-toxic and other excellent performance; and can significantly reduce the COD, BOD value after pulping, with biodegradable, renewable recycling and other environmental performance.

5. Accelerating the development of some important paper-making chemicals in the direction of scale, specialization, and serialization The paper-making industry in China has entered a period of rapid development and will maintain high-speed and stable development. However, China's papermaking chemicals are still in the early stage of development. Problems such as low output, unstable quality, few varieties, and poor specificity are widespread. To this end, papermaking chemicals industry, especially modified starch, polyacrylamide, sizing agent, coating adhesives and other important products, must speed up technological transformation and upgrading, aiming at large-scale high-speed paper machines for scale, quality, stability, etc. Requirements, accelerate the development of large-scale, specialization, and serialization to meet the market demand of modern large-scale paper-making companies.

IV. Policy Measures for the “Twelfth Five-Year” Development Plan for the Paper Chemical Industry (I) Strengthen industry support and include fine chemicals in papermaking as a high-tech industry.

The development of paper-making chemicals is closely related to the national economy industry and people’s lives. It is an industry with large industrial correlation, high technological content, and high comprehensive matching requirements. It is also a high-tech industry with rapid development at home and abroad in recent years. A brand-new new material industry can not only greatly promote the technological advancement and scientific development of the paper industry, but also directly promote the development of many downstream industries such as news, publishing, printing, packaging, electronics, automobiles, food, etc. This brings tremendous economic and social benefits to the national economy and it has far-reaching significance. It is therefore proposed to continue to include papermaking chemicals in the high-tech sequence.

(II) Strengthen the strategic adjustment of the industry structure, and focus on supporting enterprises with development potential to become stronger and bigger.

The domestic papermaking chemicals market is developing rapidly. Faced with the global economic integration, domestic papermaking chemicals research and development and production units can only strengthen technological development, strengthen enterprise management, and develop and expand their own businesses, and take a new road to industrialization before they can Global market competition is invincible. It is suggested that the country pays high attention to this young and promising market, strengthens the support for small and medium-sized enterprises in papermaking chemicals, focuses on supporting enterprises with development potential, accelerates the formation and development of key enterprises, and strategically adjusts the entire industry structure. Create a driving action.

(3) Strengthen the support for the construction of technological conditional platforms such as the National Engineering Technology Research Center and research support for common key technologies, and promote technological innovation and progress in the entire industry.

During the "Eighth Five-Year Plan" period, special chemical products organized by the State Science and Technology Commission and national key scientific and technological research projects during the Ninth Five-Year Plan included fine chemicals for papermaking in the national plan, forming China's own intellectual property rights for technological innovation and promoting China's The technological progress of the paper chemicals industry has played an important role. During the “10th Five-Year” and “Eleventh Five-Year Plan” period, the Ministry of Science and Technology approved the establishment of the National Paper Chemicals Engineering Technology Research Center based on the Hangzhou Chemical Research Institute to support the industrialization of the common key technology achievements and played an extremely important role in the application of new technologies in the paper industry. Important promotion. During the “Twelfth Five-Year Plan” period, it is recommended that the country further focus its support on the construction of science and technology conditional platforms such as the National Paper Chemicals Engineering Technology Research Center and key technology researches in the industry, strengthen the training of professional and technical personnel, and improve the industry’s scientific and technological innovation system.

(4) Strengthen product quality management and promote the construction of a technical standard system.

目前造纸化学品行业中一些小型企业，技术水平低，设备简单，低质产品大量出现，没有统一的产品质量管理，造成鱼目混珠的现象。建议政府主管部门加强对造纸化学品行业技术标准制定的指导和支持，促进造纸化学品行业技术标准体系的建设，行业的主要产品应抓紧制订国家标准或行业标准，强化产品的标准化管理。

（五）加强科技交流与合作，引进、消化和吸收国际先进技术。

充分发挥行业协会作为全国性社会团体的作用，支持协会组织各类造纸化学品开发应用国际技术交流会，组织行业企业家、科技人员出国考查和邀请外国专家来华技术交流等活动，加强与国际大公司及研究机构的技术交流与合作，在扶持国内造纸化学品的科技开发力量的同时，引进、消化和吸收国际先进技术。