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The structure of the domestic inorganic salt industry changes with each passing day
In the 70 years since the founding of the People’s Republic of China, the domestic inorganic salt industry has developed from low output and few products in the early days, and most of the technology is controlled by people. The current annual production capacity exceeds 100 million tons, and it can produce about 1,500 product varieties, including nanometer, whisker, and high purity. , The development of surface treatment modified fine inorganic products is outstanding.
Since the 70th anniversary of the founding of the People's Republic of China, the development and changes of the domestic inorganic salt industry can be described as earth-shaking, and the industrial structure is changing with each passing day. In the past 70 years, the inorganic salt industry has not only greatly increased the production capacity of various products, and some have even increased by hundreds of times; the product variety has also been enriched, and some gaps in the early reform and opening up, such as silica, have been filled. my country has now become the world's largest producer, exporter and consumer of inorganic salt, and has made great contributions to the development of the national economy.
At the beginning of the founding of New China, my country's inorganic salt industry not only had low product output, few types, but also low technical level. At that time, phosphates mainly used wet-process phosphoric acid as raw materials, and several varieties such as sodium dihydrogen phosphate, disodium hydrogen phosphate, and trisodium phosphate were successively produced in Shanghai, Liaoning, Hebei and other places. The equipment used is only simple devices such as a plate and frame filter, an open evaporator, and a jacket crystallizer. It was not until the early 1960s that the industry started thermal phosphoric acid production. The quality of phosphate has been greatly improved, but there are only more than 20 varieties. Not only phosphorus chemical products, but also other products. At that time, the annual production capacity of calcium carbonate was only a few hundred thousand tons, and the annual production capacity of hydrogen peroxide was only tens of thousands of tons. The technology of insurance powder and other industries was suppressed by foreign companies, and development was greatly restricted.
After the reform and opening up, the national economy has made great strides, and the inorganic salt industry has entered a period of leapfrog development. After the 1980s, the production scale of the inorganic salt industry continued to expand, the production capacity and output increased rapidly, and the product variety continued to increase. In terms of output and variety, the annual production capacity of hydrogen peroxide has reached more than 10 million tons, and the annual production capacity of calcium carbonate is more than 30 million tons. Some products that were blank in the early days of the founding of the People's Republic of China achieved zero breakthroughs. For example, after we introduced the American PPG white carbon black device, Through digestion, absorption, and re-development, it has formed its own technology. At present, the annual production capacity of silica has exceeded 2 million tons, making it the world's largest producer.
In the past 70 years, the quality standards of inorganic salt industry products have been continuously in line with international standards, brand cultivation has continued to deepen, and product grades have also been continuously improved. Nowadays, the development of domestic nanometer, whisker, high purity, surface treatment modified fine inorganic products is outstanding; domestic electronic grade phosphoric acid, hydrofluoric acid, hydrogen peroxide, hydrobromic acid, etc. are accepted by domestic and foreign users; flame retardant fire extinguishing agent, catalyst The development momentum of inorganic chemical products such as catalyst carrier, pharmaceutical grade, and high-purity reagent grade is good; the production capacity and output of nuclear grade boric acid, high-end magnesium oxide, magnesium hydroxide and other products have generally increased; various functional special calcium carbonates with high added value Products have been rapidly developed in the pharmaceutical, toothpaste, ink, adhesive, plastic, rubber and other industries; high-dispersible white carbon black gradually replaces part of the carbon black and is used in green tires for coatings, toothpaste, silicone rubber, plastics and insulation Ultrafine silica in heat insulation materials has also been well developed; inorganic functional materials, such as lithium hexafluorophosphate, lithium iron phosphate, lithium manganate and ternary materials required for lithium-ion batteries, have been developed with new high-tech products. The rapid development of the emerging energy industry has become the focus of industry development; among the electronic-grade inorganic chemicals, ultra-clean and high-purity electronic-grade products, such as electronic-grade H2O2, H3PO4, phosphate, HF, PH3, etc., will improve China’s integrated circuit manufacturing industry Competitiveness has a positive impact.
Over the past 70 years, the industrial layout has been continuously optimized. The four provinces of Yunnan, Guizhou, Sichuan and Jaw with abundant hydropower phosphate resources have carried out the optimized combination of "mine-electricity-phosphorus-chemical"; the production of barium carbonate and barium sulfate moved to resource areas such as Guizhou and Shaanxi; Qinghai and Xinjiang established potash fertilizer (Potash) large-scale chemical base, regional industrial clusters and belts have taken shape.
The industrial agglomeration capacity has also continued to improve. Inorganic silicides are concentrated in resource-rich Shandong Qingdao, Laizhou, Weifang and Fujian; inorganic fluorides are mainly concentrated in Henan, Zhejiang and Hebei; the cyanide industry is concentrated in the southwest and northwest regions; the phosphate industry is further developed in Yunnan, Guizhou, and Sichuan and Hubei have concentrated resource advantages; the light calcium carbonate industry has formed five major production bases in Hebei Jingxing, Jiangxi Yongfeng, Zhejiang Jiande, Guangxi Hezhou, and Guangdong Lianzhou; Inorganic silicide, inorganic fluoride, phosphorus chemical industry, potash fertilizer , Chlorate, cyanide, peroxide and other industries are coupled with upstream and downstream industries, extending the industrial chain, realizing effective use of resources, and improving corporate competitiveness.
The industry concentration has continued to increase. At present, there are 43 domestic companies with an annual production capacity of more than 50,000 tons of chromium salt, accounting for 51% of the total domestic production capacity; 7 companies with an annual production capacity of more than 50,000 tons of silica, accounting for 59% of the country's total production capacity; sodium cyanide production capacity The total production capacity of the top 3 companies accounted for more than 83% of the country's total production capacity.
Not only that, the industry has actively promoted cleaner production in the past 70 years, raising the barriers to entry for heavily polluting products such as yellow phosphorus, chromium salts, cyanide, carbon disulfide, etc., and is committed to strengthening the comprehensive utilization of high-temperature exhaust gas, circulating water, solid waste and other resources. , Eliminate high-energy-consumption and high-pollution process technologies and equipment, and actively apply clean production and energy-saving emission reduction technologies. At present, the yellow phosphorus tail gas of some enterprises can be fully utilized, and the utilization rate of chromium salt chromium-containing waste residue detoxification disposal has reached 100%, and the level of reduction, resource utilization and standardization of the whole industry has gradually improved.
Since the 70th anniversary of the founding of the People's Republic of China, the development and changes of the domestic inorganic salt industry can be described as earth-shaking, and the industrial structure is changing with each passing day. In the past 70 years, the inorganic salt industry has not only greatly increased the production capacity of various products, and some have even increased by hundreds of times; the product variety has also been enriched, and some gaps in the early reform and opening up, such as silica, have been filled. my country has now become the world's largest producer, exporter and consumer of inorganic salt, and has made great contributions to the development of the national economy.
At the beginning of the founding of New China, my country's inorganic salt industry not only had low product output, few types, but also low technical level. At that time, phosphates mainly used wet-process phosphoric acid as raw materials, and several varieties such as sodium dihydrogen phosphate, disodium hydrogen phosphate, and trisodium phosphate were successively produced in Shanghai, Liaoning, Hebei and other places. The equipment used is only simple devices such as a plate and frame filter, an open evaporator, and a jacket crystallizer. It was not until the early 1960s that the industry started thermal phosphoric acid production. The quality of phosphate has been greatly improved, but there are only more than 20 varieties. Not only phosphorus chemical products, but also other products. At that time, the annual production capacity of calcium carbonate was only a few hundred thousand tons, and the annual production capacity of hydrogen peroxide was only tens of thousands of tons. The technology of insurance powder and other industries was suppressed by foreign companies, and development was greatly restricted.
After the reform and opening up, the national economy has made great strides, and the inorganic salt industry has entered a period of leapfrog development. After the 1980s, the production scale of the inorganic salt industry continued to expand, the production capacity and output increased rapidly, and the product variety continued to increase. In terms of output and variety, the annual production capacity of hydrogen peroxide has reached more than 10 million tons, and the annual production capacity of calcium carbonate is more than 30 million tons. Some products that were blank in the early days of the founding of the People's Republic of China achieved zero breakthroughs. For example, after we introduced the American PPG white carbon black device, Through digestion, absorption, and re-development, it has formed its own technology. At present, the annual production capacity of silica has exceeded 2 million tons, making it the world's largest producer.
In the past 70 years, the quality standards of inorganic salt industry products have been continuously in line with international standards, brand cultivation has continued to deepen, and product grades have also been continuously improved. Nowadays, the development of domestic nanometer, whisker, high purity, surface treatment modified fine inorganic products is outstanding; domestic electronic grade phosphoric acid, hydrofluoric acid, hydrogen peroxide, hydrobromic acid, etc. are accepted by domestic and foreign users; flame retardant fire extinguishing agent, catalyst The development momentum of inorganic chemical products such as catalyst carrier, pharmaceutical grade, and high-purity reagent grade is good; the production capacity and output of nuclear grade boric acid, high-end magnesium oxide, magnesium hydroxide and other products have generally increased; various functional special calcium carbonates with high added value Products have been rapidly developed in the pharmaceutical, toothpaste, ink, adhesive, plastic, rubber and other industries; high-dispersible white carbon black gradually replaces part of the carbon black and is used in green tires for coatings, toothpaste, silicone rubber, plastics and insulation Ultrafine silica in heat insulation materials has also been well developed; inorganic functional materials, such as lithium hexafluorophosphate, lithium iron phosphate, lithium manganate and ternary materials required for lithium-ion batteries, have been developed with new high-tech products. The rapid development of the emerging energy industry has become the focus of industry development; among the electronic-grade inorganic chemicals, ultra-clean and high-purity electronic-grade products, such as electronic-grade H2O2, H3PO4, phosphate, HF, PH3, etc., will improve China’s integrated circuit manufacturing industry Competitiveness has a positive impact.
Over the past 70 years, the industrial layout has been continuously optimized. The four provinces of Yunnan, Guizhou, Sichuan and Jaw with abundant hydropower phosphate resources have carried out the optimized combination of "mine-electricity-phosphorus-chemical"; the production of barium carbonate and barium sulfate moved to resource areas such as Guizhou and Shaanxi; Qinghai and Xinjiang established potash fertilizer (Potash) large-scale chemical base, regional industrial clusters and belts have taken shape.
The industrial agglomeration capacity has also continued to improve. Inorganic silicides are concentrated in resource-rich Shandong Qingdao, Laizhou, Weifang and Fujian; inorganic fluorides are mainly concentrated in Henan, Zhejiang and Hebei; the cyanide industry is concentrated in the southwest and northwest regions; the phosphate industry is further developed in Yunnan, Guizhou, and Sichuan and Hubei have concentrated resource advantages; the light calcium carbonate industry has formed five major production bases in Hebei Jingxing, Jiangxi Yongfeng, Zhejiang Jiande, Guangxi Hezhou, and Guangdong Lianzhou; Inorganic silicide, inorganic fluoride, phosphorus chemical industry, potash fertilizer , Chlorate, cyanide, peroxide and other industries are coupled with upstream and downstream industries, extending the industrial chain, realizing effective use of resources, and improving corporate competitiveness.
The industry concentration has continued to increase. At present, there are 43 domestic companies with an annual production capacity of more than 50,000 tons of chromium salt, accounting for 51% of the total domestic production capacity; 7 companies with an annual production capacity of more than 50,000 tons of silica, accounting for 59% of the country's total production capacity; sodium cyanide production capacity The total production capacity of the top 3 companies accounted for more than 83% of the country's total production capacity.
Not only that, the industry has actively promoted cleaner production in the past 70 years, raising the barriers to entry for heavily polluting products such as yellow phosphorus, chromium salts, cyanide, carbon disulfide, etc., and is committed to strengthening the comprehensive utilization of high-temperature exhaust gas, circulating water, solid waste and other resources. , Eliminate high-energy-consumption and high-pollution process technologies and equipment, and actively apply clean production and energy-saving emission reduction technologies. At present, the yellow phosphorus tail gas of some enterprises can be fully utilized, and the utilization rate of chromium salt chromium-containing waste residue detoxification disposal has reached 100%, and the level of reduction, resource utilization and standardization of the whole industry has gradually improved.
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