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Preparation of 3-Chloro-2-hydroxypropyl-trimethylammonium Chloride

Cuiyu Jiang

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Abstract

The optimal technological conditions for synthesis of 3-chloro-2-hydroxypropyl -trimethylammonium chloride(CHPTMAC) were found.Thus,molar ratio of epichlorohydin to trimethylammonium chloride was 0.95,initial pH of the reaction mixture was 7.5-8.0,reaction temperature was controlled at 10 ℃ and then at 35 ℃,and suitable catalyst was added.Besides,steam distillation was applied for purifying the product.Qualified product was obtained,containing 69% CHPTMAC,with impurities epichlorohydrin≤0.0005%and 1,3-dichloro-2-propanol≤0.0015%.

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What this paper is about

The optimal technological conditions for synthesis of 3-chloro-2-hydroxypropyl -trimethylammonium chloride(CHPTMAC) were found.Thus,molar ratio of epichlorohydin to trimethylammonium chloride was 0.95,initial pH of the reaction mixture was 7.5-8.0,reaction temperature was controlled at 10 ℃ and then at 35 ℃,and suitable catalyst was added.Besides,steam distillation was applied for purifying the product.Qualified product was obtained,containing 69% CHPTMAC,with impurities epichlorohydrin≤0.0005%and 1,3-dichloro-2-propanol≤0.0015%.

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Available abstract

The optimal technological conditions for synthesis of 3-chloro-2-hydroxypropyl -trimethylammonium chloride(CHPTMAC) were found.Thus,molar ratio of epichlorohydin to trimethylammonium chloride was 0.95,initial pH of the reaction mixture was 7.5-8.0,reaction temperature was controlled at 10 ℃ and then at 35 ℃,and suitable catalyst was added.Besides,steam distillation was applied for purifying the product.Qualified product was obtained,containing 69% CHPTMAC,with impurities epichlorohydrin≤0.0005%and 1,3-dichloro-2-propanol≤0.0015%.

Key concepts: Epichlorohydrin, Chemistry, Chloride, Molar ratio, Allyl chloride, Catalysis, By-product, Reaction conditions

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