公开(公告)号：US20190127299A1

公开(公告)日：2019-05-02

申请号：US16094256

申请日：2017-04-20

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kazuhiro TAKAHASHI ,  Shuuzou KIDA ,  Tatsuya TAKAKUWA ,  Masanobu NISHITSUJI

IPC: C07C17/20 ,  C07C17/25 ,  B01J19/24

Abstract: Provided is a method for producing HCFC and/or HFC by subjecting a halogenated hydrocarbon and anhydrous hydrogen fluoride to a fluorination reaction in the presence of a catalyst, whereby efficient production can be achieved, without the need to stop the production every time catalytic activity is regenerated or recovered, and without making facilities excessive. Provided as a solution therefor is a method comprising (A) subjecting a halogenated hydrocarbon and anhydrous hydrogen fluoride to a fluorination reaction in at least two reactors each in the presence of a catalyst to thereby obtain HCFC and/or HFC; and (B) while halting the reaction in at least one of the reactors, obtaining HCFC and/or HFC by the reaction in at least one other reactor.