METHOD FOR CAPTURING AND RECYCLING IRON CATALYST USED IN PRODUCTION OF HALOALKANE COMPOUNDS Russian patent published in 2017 - IPC B01J38/00 B01J23/745 C07C21/04 B01J19/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method for capturing and recycling iron catalyst used in production of haloalkane compounds from carbon tetrachloride and alkene using iron catalyst and one or more trialkyl phosphate compounds as a cocatalyst, using an electromagnetic separation unit (EMSU). Upon activation, electromagnetic separation unit acts to remove iron particles from a stream exiting reactor; When electromagnetic separation unit is deactivated, captured iron particles can be separated back into reactor for repeated use in continuous production of haloalkane compounds. Present invention can be used in methods of producing haloalkane compounds, selected from a group consisting of 1,1,1,3,3-pentachloropropane (HCC-240fa), 1, 1,1,3-tetrachloropropane (HCC-250) and 1,1,1,3,3-pentachlorobutane (HCC-360).

EFFECT: technical result is iron catalyst can be captured and sent back into reactor.

10 cl, 1 dwg