METHOD FOR CO-SYNTHESIS OF CHLOROALKANES AND CHLOROFORM ON SOLID CATALYST Russian patent published in 2011 - IPC C07C19/04 C07C17/354 B01J27/122 B01J21/08 B01J31/18 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of converting chlorohydrocarbons, specifically to methods for simultaneous production of chloroform and chloroparaffins. Described is a method for co-synthesis of chloroform and chloroalkanes from tetrachloromethane and alkane, which is carried out in liquid phase in the presence of a solid catalyst which is a product of reacting copper chloride, 3-chloropropyl trimethoxy-siloxane, tertiary amine or derivatives of imidazole and silica gel. The tertiary amine used is compounds of general formula R₁R₂R₃N, where R is methyl, ethyl, propyl or isopropyl. The imidazole derivative is methyl- or ethyl-imidazole. Content of copper in the catalyst is equal to 1.5-2 wt %. The process for co-synthesis of chloroform and chloroalkanes is carried out at temperature 160-190°C and contact time of 3-5 hours in the presence of an organic additive selected from C₂-C₄ alcohols.

EFFECT: simplification of the process owing to exclusion of the step for purifying the end product from catalyst conversion products and resinous substances and possibility of using the catalyst many times.

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