HC WIRE: Organic fluorine chemical products include basic fluorocarbon compounds, organic fluorine fluorine polymers and fine chemicals, as well as important raw materials hydrofluoric acid.
1.1 Basic fluorocarbons Basic fluorocarbons include chlorofluorocarbons (CFCs), hydrogen-containing chlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) and other fluorinated alkanes, mainly used for refrigerators and air-conditioning refrigerant, plastics Vesicant , Electronic cleaning agent, aerosol and Halon (Halon) fire extinguishing agent. CFCs in 1995, China's basic capacity of 120,000 t / a, actual production 60 000 t / a, of which approximately 50,000 CFC refrigerant t. CFC refrigerant demand in the domestic market of about 100 000 t / a. As gradually stop using Freon, China in "during the" construction of a large number of "ODS" alternative to the production equipment, production in 1999 amounted to more than 80,000 tons.
2.2 fluoropolymer Fluoropolymer includes fluorine resin and fluorine rubber. In 1995 China's production capacity of 0.6l million fluoropolymer t / a, yield about 04 000 t / a, main products are PTFE, about 80% to medium and low particle size suspension in the main; fluorine rubber, 3 %. At present, the fluoropolymer or the number of both species can not meet domestic demand. Conservative forecast, the current domestic demand for fluoropolymer PTFE0.5 million t, PVDF0.05 million t, FEP0.06 million t, ETFE0.02 million t, PFA0.02 million t, fluorine rubber, 01,000 t and Other Fluorine polymers, the potential market is huge.
Development in the fluoropolymer, the CAS Shanghai Institute of Organic Chemistry, Shanghai Institute of Organic Fluorine Materials, Sichuan Chemical Academy and other morning a lot of work, made a number of industrial test results, some positive trends Industry of.
1.3 Organic fluorine fine chemicals
Organic fluorine fine chemicals including fluoride pesticides, fluoride medicine, fluorine dyes, fluorinated aromatic intermediates, fluorinated surfactant and an inert fluid such as fluorine.
(1) fluoride as fluorine-containing organic compounds with specific medical biological activity and biological adaptation, effect of fluorine-containing drugs are stronger than drugs several times, the most active in its development. The world has been commercialized and are being developed nearly one hundred kinds of Chinese medicine containing fluorine. Some major products are: sedatives droperidol; antitumor fluorouracil; anti-inflammatory drugs fluoride Larsson; hormone class medicine cortisone hydrogen fluoride, CFC Snyder,, hydrogen fluoride shrinkage, fluoride to propionate; anti- arrhythmia drugs flecainide; antifungal drug fluconazole, flucytosine; anti-cancer drug Fludarabine Phosphate; hypnotic Flumazenil; anti-asthma drug, and flunisolide; antidepressant drug fluoxetine (100 worry Solutions, the world's sales of the first class of antidepressant drugs); diet drug fenfluramine.
(2) fluoride pesticide in China since the beginning of 70 fluorinated pesticides, has developed the V grass Long, trifluralin, oxyfluorfen herbicide and fluoride and other aphid infestation, diflubenzuron, fluoride pyrethroids and other pesticides, including trifluralin, the industrialization of production, fruit Seoul, Hu Wei, diflubenzuron, also have mass. To heterocyclic compounds as raw materials for pesticides own strong performance, the introduction of fluoride to the performance further improved. Made of fluorine-containing pyridine derivatives such as pyridine herbicide diclofop-methyl fluoride (stability kill special) of the performance increased by 1 times; pesticides chlorofluorocarbons urea (chlorfluazuron) function both insecticides and infertility.
Present, the domestic varieties of fluorine-containing pesticides, quantities are to meet the market demand, rely heavily on import.
(3) The introduction of fluorine fluorine dyes can enhance the luster and brilliant dyes, improve the light fastness, water resistance properties of organic solvents. Pyrimidine containing CFCs, such as the F-type reactive dyes to replace K-, KN-based screen printing dyes, their reactivity, fixation and fastness are improved significantly. ** Dye intermediate 2,6 - difluoro -3 - nitropyridine also has a bactericidal effect, used as chewing gum additives. I am China Chemicals Products writer, reports some information about self adhesive address labels , custom self adhesive labels.
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