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This post was last edited by sunjl1981 on 2013-1-6 23:04 At present, the downturn in PVC prices and the mass production of caustic soda have brought great problems to the balance between chlorine and alkali. In order to solve the current difficulties, let's discuss what chlorine-consuming products are currently available to change this situation? , , -
1. Hydrochloric acid, which is the largest chlorine-consuming product. 2. Chlorine-containing disinfectants. 3. Chlorinated (alkene) hydrocarbons. 4. Organochlorine fine chemicals. 5. Chlorosilanes (organosilicon). These are all chlorine-consuming products.
In fact, many chlorine-consuming products that appear to have high added value are saturated.
When developing chlorine-consuming products, the by-products of hydrogen chloride and sodium chloride must be considered.
The EDC method co-produces Trichloroethylene and Tetrachlorethylene has a broad market prospect. In China, the calcium carbide method is generally used, which causes high pollution, high costs, large geographical restrictions on raw materials, and can only produce a small amount of Tetrachlorethylene by-product. However, the EDC method can freely adjust the production ratio of Trichloroethylene and Tetrachlorethylene according to market conditions. The patent of the U.S. ODC substitute R410 is about to expire. By then, there will be a large number of R125 manufacturers in China. Now is a good opportunity for chlor-alkali units to upgrade Trichloroethylene.
Can the brother upstairs explain in more detail why when the patent of the American ODC substitute R410 expires, there will be a large number of R125 manufacturers in China. What is the relationship between R410 and R125? The raw material of R125 is tri-tetrachlorethylene? Can you tell me what the process is? Thank you!
Yes, please explain it in detail below!
You can check the relevant provisions of the Montreal Agreement. Trichlorethylene is the main raw material for the production of R134a. The current domestic market is very good, but R134a is only an excessive substitute for ODC. The final replacement product requires the R410 series of compound refrigerants. Their main component is R125. Perchlorethylene is the main raw material for the production of R125. It is also a dry cleaning agent, a high-efficiency fire extinguishing agent, etc. Currently, 90% relies on imports. For relevant data, you can check customs data.
If only someone could figure out a way to use chlorine to make chlorate products. . The existing process for producing chlorate products through electrolysis of sodium chloride consumes too much power.