Discrimination of by-products and analysis of reaction mechanism in preparation of dichloropropanol from glycerol

Zhen Zhao, Xu Qiao, Xian Chen, Ji Hai Tang, Mi Fen Cui

科研成果: 期刊稿件文章同行评审

摘要

Dichloropropanol was synthesized by chlorination of glycerol with hydrogen chloride under catalysis of organic acids and self-made inorganic catalyst. The qualitative analysis of by-products was carried out by GC-MS and the side reaction mechanism of catalytic reaction of glycerol by carboxylic acid was studied. And the main by-products of carboxylic glycerin ester, autopolymer of carboxylic acid, carboxylic chloropropyl ester and diglycerine were identified. The advantages and disadvantages between organic acids catalyst and inorganic catalyst on chlorination of glycerol were compared, and the results showed that the total selectivity of monochloropropanediol and dichloropropanol was obtained to above 99%, being 4% higher than that of organic acid catalysis.

源语言英语
页(从-至)1098-1102
页数5
期刊Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
8
6
出版状态已出版 - 12月 2008

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