Transcription of AP-42, CH 8.11: Chlor-Alkali - US EPA
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AP-42, CH 8.11: Chlor-Alkali - US EPA
General1-2 The Chlor-Alkali electrolysis process is used in the manufacture of chlorine, hydrogen, andsodium hydroxide (caustic) solution. Of these 3, the primary product is is 1 of the more abundant chemicals produced by industry and has a wide variety ofindustrial uses. Chlorine was first used to produce bleaching agents for the textile and paper industriesand for general cleaning and disinfecting. Since 1950, chlorine has become increasingly important asa raw material for synthetic organic chemistry. Chlorine is an essential component of constructionmaterials, solvents, and insecticides. Annual production from U. S. facilities million megagrams (Mg) ( million tons) in 1990 after peaking at million Mg( million tons) in Process Description1-3 There are 3 types of electrolytic processes used in the production of chlorine: (1) thediaphragm cell process, (2) the mercury cell process, and (3) the membrane cell process.
7/93 (Reformatted 1/95) Inorganic Chemical Industry 8.11-1. Figure 8.11-1. Simplified diagram of the diaphragm cell process. ... The liquid mercury cathode and the brine enter the cell flowing concurrently. The ... storage tanks and process transfer tanks. Carbon dioxide emissions result from the decomposition of
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