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METHOD OF SYNTHESIS OF 1,1-DICHLORO-1-FLUOROETHANE AND A METHOD OF 1,1-DICHLOROETHYLENE CONTENT DECREASE
METHOD OF SYNTHESIS OF 1,1-DICHLORO-1-FLUOROETHANE AND A METHOD OF 1,1-DICHLOROETHYLENE CONTENT DECREASE
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机译:1,1-二氯-1-氟乙烷的合成方法和1,1-二氯乙烯含量降低的方法
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摘要
FIELD: chemical technology. SUBSTANCE: synthesis conditions: addition reaction of hydrogen fluoride to 1,1-dichloroethylene in the presence of hydrofluorination catalyst with preparing of product with low content of 1,1-dichloroethylene by 2 stages. Catalyst - aluminium fluoride prepared by treatment of Al chloride or oxide with gaseous hydrogen fluoride at increased temperature. Method of 1,1-dichloroethylene content decrease in the mixture with 1,1-dichloro-1-fluoroethane by hydrofluorination in the presence of catalyst is described. EFFECT: improved method of synthesis. 3 cl
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