Process for the manufacture of vinyl chloride by the thermal...

Details Process for the manufacture of vinyl chloride by the thermal... Process for the manufacture of vinyl chloride by the thermal...

C - Chemistry, Metallurgy

07

C

260/662.5

C07C 21/06 (2006.01)

Patent

CA 1136161

ABSTRACT Process for the manufacture of vinyl chloride by thermal cracking of 1,2-dichloroethane. The description covers a process for the manufacture of vinyl chloride by thermal cracking of 1,2-dichloroethane. The hot gas leaving the reaction furnace is cooled to the inlet temperature of the column in which the hydrogen chloride is separated from the products of thermal cracking of the 1,2-dichloroethane. Within the range of 560 to 480 oC and of 220 to 120 oC, one or more cooling stages are applied through which the reaction gas mixture passes at high flow velocity, the cooling device being preferably a single-tube cooler. Starting from about 220 oC, a liquid substantially consisting of 1,2-dichloroethane may be added intermittently. The heat transferred to the coolant in the stages of indirect cooling is preferably reused within the vinyl chloride manufacturing process. RVPP02000390580

354769

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