4. Oxychlorination
4.1 Principle
Oxychlorination uses hydrochloric acid or metal chlorides as chlorinating agents, and O 2 , Ca(OCl) 2 , SO 3 or H 2 O 2 as oxidizing agents. Oxychlorination can be carried out electrolytically at low temperatures.
Industrially, only high-temperature chlorination using the HCl-oxygen couple (pure or air) is practised, enabling the by-product HCl to be recovered in substitutive chlorination processes. Sometimes chlorination and oxychlorination are carried out simultaneously, using hydrocarbon, chlorine and oxygen....
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Oxychlorination
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