Yuan Chengye, an academician of the Chinese Academy of Sciences: Phosphorus is a vital element and a scarce resource. A large amount of yellow phosphorus is exported to our country's resources. Our resources cannot be easily exported, but we must use scientific and technological means to increase the added value, extend the industrial chain, reduce and save resource expenditures, and maximize the effectiveness. The development of fine phosphorus chemical products is the best way out. Cleaning agents, flame retardants and food additives are all good directions for development. In particular, after the national flame retardant legislation, phosphorus chemical companies are more promising in the direction of refinement. City buildings, carpets, clothing and other flame-retardant, is the opportunity and potential direction for the development of phosphorus chemical industry.
National Chemical Energy Conservation (Emission Reduction) Center Wang Wu: At present, the structure of China's phosphorus chemical industry is seriously unreasonable, and it is divided according to the ratio of the value of phosphorus phosphate per unit phosphate product. The layout of the phosphorus chemical industry is divided into three layers: . Phosphorus, phosphate and other primary products are the bottom layer, bulk phosphate is the middle layer, and organic, fine, high-purity phosphorus products are high-level. Phosphorus chemical products in China are basically concentrated in the bottom and middle layers, with few fine chemical products and low added value. In addition, the mid-to-low-end products are in serious excess and are exported in large quantities. Over the past few years, exports of surplus mid- to low-end products have frequently suffered foreign anti-dumping investigations because of the unsustainable prices, and trade frictions have continued. However, China's high-end products also show signs of weakness, and high-end products such as electronic grade phosphoric acid and phosphate, which are urgently needed by the national economy, need to be imported.
This kind of low-grade products are exported to foreign countries. How should foreign companies change their unreasonable situation of deep processing into fine chemical products and sell them back to China at high prices? The answer is that China's phosphorus chemical industry only shifts to the refinement of high-end phosphorus chemical industry. However, the production of phosphorus fine chemical products must be considered by the company as a whole, which is beneficial to getting through the sales and use links. For example, a company can choose to produce a certain product from the perspective of industrial classification, such as flame retardant, and choose a type of inorganic phosphorus flame retardant, organic phosphorus reactive flame retardant or additive flame retardant Fine, so that the entire enterprise can grasp the application, promotion and service of the product.
Huang Wenjun, secretary general of the Hubei Provincial Phosphorus Chemical Association, said that phosphate rock is a treasure, but only by taking the fine development path and extending the industrial chain downwards can we maximize resource utilization and maximize corporate profits. During the “Eleventh Five-Year Plan†period, through the integration of resources, the development of small-scale, scattered, and disordered phosphorite resources in the province has been significantly improved, and the level of exploitation and utilization of mineral resources has been improved.
In addition, by accelerating the reform of high-tech industries in traditional industries, the structure of Hubei's phosphorus chemical products has been constantly optimized and upgraded. The structural adjustment in key areas such as fine-phosphorus chemical products has achieved remarkable results. Fine phosphorus chemical product varieties have evolved from more than 20 kinds to over 40 kinds; through extension Phosphorus-based fine-phosphorus chemical product chain, the development of phosphoric acid from industrial grade to food grade, electronic grade; common phosphate varieties cover sodium, potassium, calcium, ammonium, etc., through the phosphorus halide, phosphorus oxide , Phosphorus and other phosphide development, the inorganic phosphorus to organic phosphorus conversion, production of organic phosphorus pesticides, flame retardants, water treatment agents and other products. Taking the fine development road not only makes the province's production of fine phosphorus chemical products rank the top in China, but also increases the output value of phosphorus chemical products from more than 7 billion yuan at the end of the “Tenth Five-year Plan†to more than 30 billion yuan at the end of the “Eleventh Five-Year Plan†period. The average growth rate exceeds 30%.
He Hongwu, Professor of Organic Synthesis, Huazhong Normal University, China: Halogen-based flame retardants have brought about many potential hazards to the production, living, and social environment. As people attach more importance to environmental protection, halogen-free has become the main development direction of the flame retardant technology of materials. . Phosphorus-based flame retardants have been used in the field of polymer flame retardants due to the advantages of high flame-retardant efficiency, low toxicity, non-corrosiveness, and compatibility with polymer materials, leading to an upsurge of research and development. In recent years, a large amount of work has been carried out in the field of organophosphorus flame-retardant epoxy resins, and many new types of phosphorus-containing halogen-free flame retardants have been developed. However, most of the research results are limited to the research stage and have failed to achieve industrial production and in materials. widely used. Therefore, the process optimization of high-efficiency, low-toxicity, environmentally-friendly organophosphorus flame retardants and their application in materials will be the focus of future research.
Zhou Guiyun, professor of School of Chemical Engineering, Sichuan University: Calcium hydrogen phosphate is a feed mineral additive containing phosphorus and calcium. At present, the use of calcium phosphate as a feed grade in China has the largest amount of calcium hydrogen phosphate, and the annual consumption is more than 2.8 million tons. With the development of China's feed industry, the demand for feed-grade calcium hydrogen phosphate will also increase. Big.
The main production methods of calcium hydrogen phosphate are ** method and ** method. In our country's production, the production of base-based compound fertilizer, potassium, caustic soda, etc., produces approximately 20 million tons of by-products each year. However, due to restrictions on concentration, area, season, and transportation, by-products** often appear to be unmarketable, and supply exceeds demand. This situation will affect the production of upstream products, and if discharged, it will seriously pollute the environment. Therefore, the development and production of feed-grade calcium hydrogen phosphate can not only meet the market demand, but also create benefits for the enterprise and solve the problem of oversupply, which is very practical and has many advantages.
National Chemical Energy Conservation (Emission Reduction) Center Wang Wu: At present, the structure of China's phosphorus chemical industry is seriously unreasonable, and it is divided according to the ratio of the value of phosphorus phosphate per unit phosphate product. The layout of the phosphorus chemical industry is divided into three layers: . Phosphorus, phosphate and other primary products are the bottom layer, bulk phosphate is the middle layer, and organic, fine, high-purity phosphorus products are high-level. Phosphorus chemical products in China are basically concentrated in the bottom and middle layers, with few fine chemical products and low added value. In addition, the mid-to-low-end products are in serious excess and are exported in large quantities. Over the past few years, exports of surplus mid- to low-end products have frequently suffered foreign anti-dumping investigations because of the unsustainable prices, and trade frictions have continued. However, China's high-end products also show signs of weakness, and high-end products such as electronic grade phosphoric acid and phosphate, which are urgently needed by the national economy, need to be imported.
This kind of low-grade products are exported to foreign countries. How should foreign companies change their unreasonable situation of deep processing into fine chemical products and sell them back to China at high prices? The answer is that China's phosphorus chemical industry only shifts to the refinement of high-end phosphorus chemical industry. However, the production of phosphorus fine chemical products must be considered by the company as a whole, which is beneficial to getting through the sales and use links. For example, a company can choose to produce a certain product from the perspective of industrial classification, such as flame retardant, and choose a type of inorganic phosphorus flame retardant, organic phosphorus reactive flame retardant or additive flame retardant Fine, so that the entire enterprise can grasp the application, promotion and service of the product.
Huang Wenjun, secretary general of the Hubei Provincial Phosphorus Chemical Association, said that phosphate rock is a treasure, but only by taking the fine development path and extending the industrial chain downwards can we maximize resource utilization and maximize corporate profits. During the “Eleventh Five-Year Plan†period, through the integration of resources, the development of small-scale, scattered, and disordered phosphorite resources in the province has been significantly improved, and the level of exploitation and utilization of mineral resources has been improved.
In addition, by accelerating the reform of high-tech industries in traditional industries, the structure of Hubei's phosphorus chemical products has been constantly optimized and upgraded. The structural adjustment in key areas such as fine-phosphorus chemical products has achieved remarkable results. Fine phosphorus chemical product varieties have evolved from more than 20 kinds to over 40 kinds; through extension Phosphorus-based fine-phosphorus chemical product chain, the development of phosphoric acid from industrial grade to food grade, electronic grade; common phosphate varieties cover sodium, potassium, calcium, ammonium, etc., through the phosphorus halide, phosphorus oxide , Phosphorus and other phosphide development, the inorganic phosphorus to organic phosphorus conversion, production of organic phosphorus pesticides, flame retardants, water treatment agents and other products. Taking the fine development road not only makes the province's production of fine phosphorus chemical products rank the top in China, but also increases the output value of phosphorus chemical products from more than 7 billion yuan at the end of the “Tenth Five-year Plan†to more than 30 billion yuan at the end of the “Eleventh Five-Year Plan†period. The average growth rate exceeds 30%.
He Hongwu, Professor of Organic Synthesis, Huazhong Normal University, China: Halogen-based flame retardants have brought about many potential hazards to the production, living, and social environment. As people attach more importance to environmental protection, halogen-free has become the main development direction of the flame retardant technology of materials. . Phosphorus-based flame retardants have been used in the field of polymer flame retardants due to the advantages of high flame-retardant efficiency, low toxicity, non-corrosiveness, and compatibility with polymer materials, leading to an upsurge of research and development. In recent years, a large amount of work has been carried out in the field of organophosphorus flame-retardant epoxy resins, and many new types of phosphorus-containing halogen-free flame retardants have been developed. However, most of the research results are limited to the research stage and have failed to achieve industrial production and in materials. widely used. Therefore, the process optimization of high-efficiency, low-toxicity, environmentally-friendly organophosphorus flame retardants and their application in materials will be the focus of future research.
Zhou Guiyun, professor of School of Chemical Engineering, Sichuan University: Calcium hydrogen phosphate is a feed mineral additive containing phosphorus and calcium. At present, the use of calcium phosphate as a feed grade in China has the largest amount of calcium hydrogen phosphate, and the annual consumption is more than 2.8 million tons. With the development of China's feed industry, the demand for feed-grade calcium hydrogen phosphate will also increase. Big.
The main production methods of calcium hydrogen phosphate are ** method and ** method. In our country's production, the production of base-based compound fertilizer, potassium, caustic soda, etc., produces approximately 20 million tons of by-products each year. However, due to restrictions on concentration, area, season, and transportation, by-products** often appear to be unmarketable, and supply exceeds demand. This situation will affect the production of upstream products, and if discharged, it will seriously pollute the environment. Therefore, the development and production of feed-grade calcium hydrogen phosphate can not only meet the market demand, but also create benefits for the enterprise and solve the problem of oversupply, which is very practical and has many advantages.
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