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.
2 tbl, 14 ex
Title | Year | Author | Number |
---|---|---|---|
CATALYST FOR JOINT PRODUCTION OF CHLOROFORM AND ALKANE CHLORIDES | 2003 |
|
RU2261759C2 |
SIMULTANEOUS CHLOROFORM AND TERTIARY ALKYL CHLORIDE PRODUCTION PROCESS | 2006 |
|
RU2322433C1 |
METHOD OF PRODUCING CHLOROFORM FROM METHYLENE CHLORIDE | 2009 |
|
RU2404953C1 |
CATALYST FOR HYDROGENATION OF CARBON TETRACHLORIDE | 1995 |
|
RU2107544C1 |
CHLOROFORM PRODUCTION PROCESS | 1995 |
|
RU2107678C1 |
CHLOROFORM AND CHLOROPARAFFIN PRODUCTION CATALYST AND A METHOD FOR PRODUCTION OF CHLOROFORM AND CHLOROPARAFFINS | 2003 |
|
RU2242282C1 |
PROCESS FOR SIMULTANEOUSLY PREPARING CHLOROFORM AND AROMATIC HYDROCARBON CHLORINATED INTO SIDE CHAIN | 1995 |
|
RU2076855C1 |
METHOD OF SYNTHESIS OF CHLOROFORM | 2000 |
|
RU2187489C2 |
TETRACHLOROETHYLENE PRODUCTION PROCESS | 2004 |
|
RU2253648C1 |
METHOD OF CONVERTING ORGANOCHLORIDE WASTES TO METHYL CHLORIDE | 2008 |
|
RU2379278C1 |
Authors
Dates
2011-11-27—Published
2010-07-15—Filed