公开(公告)号：US20180265436A1

公开(公告)日：2018-09-20

申请号：US15953743

申请日：2018-04-16

Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.

Inventor： ANDREW PAUL SHARRATT ,  CLAIRE NICOLA REES ,  MAXINE DORAN

IPC: C07C17/25 ,  B01J23/96 ,  B01J23/94 ,  B01J23/92 ,  B01J23/90 ,  B01J23/755 ,  B01J21/20 ,  C07C21/18

Abstract: The present invention provides a process for the preparation of a (hydro)(chloro)fluoroalkene by contacting a reagent stream comprising a hydrochlorofluoroalkane with a catalyst in a reactor to dehydrochlorinate at least a portion of the hydrochlorofluoroalkane to produce a product stream comprising the (hydro)(chloro)fluoroalkene and hydrogen chloride (HCl), wherein the catalyst is selected from the group consisting of metal oxide catalysts, metal halide catalysts, zero-valent metal catalysts, carbon-based catalysts and mixtures thereof, and wherein (i) the catalyst is chlorinated prior to contacting it with the reagent stream comprising the hydrochlorofluoroalkane; and/or (ii) the contacting step is carried out in the presence of a HCl co-feed.