METHOD OF PRODUCING DICHLOROPROPANOLS Russian patent published in 2009 - IPC C07C31/36 C07C29/62

Abstract RU 2358964 C1

FIELD: chemistry.

SUBSTANCE: proposed method involves reacting glycerine with hydrogen chloride gas at high temperature in the presence of carboxylic acids and their derivatives. The process is carried out in the presence of organic and/or inorganic heterogeneous acid type catalysts. As a rule, the inorganic heterogeneous catalysts used are silica gel, aluminium silicate, aluminium oxide and activated carbon, and the organic heterogeneous catalysts used are ion-exchange polymer materials, containing acid groups. The process is usually carried out at 100-140°C.

EFFECT: higher degree of converting glycerine and hydrogen chloride, and output of dichloropropanols.

5 cl, 1 tbl, 6 ex

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RU 2 358 964 C1

Authors

Zanaveskin Leonid Nikolaevich

Zakharova Ljudmila Zievna

Khaustov Egor Nikolaevich

Dates

2009-06-20—Published

2007-12-27—Filed