公开(公告)号：US20180354874A1

公开(公告)日：2018-12-13

申请号：US16105513

申请日：2018-08-20

Applicant: AGC Inc.

Inventor： Shingo Nomura ,  Hidekazu Okamoto ,  Hirokazu Takagi

IPC: C07C17/23 ,  B01J21/18 ,  B01J23/42

CPC classification number: C07C17/23 ,  B01J21/18 ,  B01J23/42 ,  C07B61/00 ,  C07C21/18

Abstract: There is provided an efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene, with fewer by-products such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane which are over-reduced products, in a method of obtaining 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1-1-dichloro-2,3,3,3-tetrafluoropropene. A method for producing 1-chloro-2,3,3,3-tetrafluoropropene, comprising: reacting 1,1-dichloro-2,3,3,3-tetrafluoropropene with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier in which a palladium catalyst having a specific surface area of 40 m2/g or less is carried on a carrier.

公开(公告)号：US10377686B2

公开(公告)日：2019-08-13

申请号：US16105513

申请日：2018-08-20

Applicant: AGC Inc.

Inventor： Shingo Nomura ,  Hidekazu Okamoto ,  Hirokazu Takagi

IPC: B01J21/18 ,  B01J23/42 ,  C07B61/00 ,  C07C17/23 ,  C07C21/18

Abstract: An efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene from 1,1-dichloro-2,3,3,3-tetrafluoropropene is provided. The method produces 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1,1-dichloro-2,3,3,3-tetrafluoropropene with fewer over-reduced by-products, such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane. In the method, 1,1-dichloro-2,3,3,3-tetrafluoropropene reacts with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier, in which a palladium catalyst having a specific surface area of 40 m2/g or less is carried on the carrier.