METHOD OF CONVERTING ORGANOCHLORIDE WASTES TO METHYL CHLORIDE Russian patent published in 2010 - IPC C07C19/03 C07C17/16 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of converting organochloride wastes containing tetrachloromethane to methyl chloride by reacting organochloride wastes with methanol at high temperature in a gas phase in a cascade consisting of at least two series-connected reactors, by periodically redistributing the stream of the initial mixture to the cascade reactors. All reactors have at least two heterogeneous contact layers with different concentration of the active ingredient which is zinc chloride deposited on a solid support. The process is preferably carried out in the presence of hydrogen chloride additive and/or water.

EFFECT: longer service life of catalyst.

2 cl, 2 dwg, 1 tbl, 5 ex