公开(公告)号：US20020107421A1

公开(公告)日：2002-08-08

申请号：US09897899

申请日：2001-07-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byoung Sung Ahn ,  Jung Hwan Song ,  Dong Ju Moon ,  Kun You Park

IPC: C07C017/10

CPC classification number: B01J37/22 ,  B01J21/18 ,  B01J23/44 ,  C07C17/23 ,  C07C19/08

Abstract: The present invention relates to a catalyst for producing 1,1-difluoroethane (HCFC-152a) and producing method thereof. More particularly, it is to provide the catalyst prepared by impregnating palladium on the active carbon pretreated with an aqueous hydrogen fluoride solution and an aqueous hydrogen chloride solution in series and its use in the production of 1,1-difluoroethane (HCFC-142b) by dehydrochlorinating 1,1-difluoro-1-chloroethane at 240-300null C. in the supplying molar ratio of 2-6 (H2/HCFC-142b) with maximizing a selectivity toward the product of HCFC-152a.

Abstract translation: 本发明涉及一种生产1,1-二氟乙烷（HCFC-152a）的催化剂及其制备方法。 更具体地说，提供催化剂，其通过在用氟化氢水溶液和氯化氢水溶液预处理的活性炭上浸渍钯，并将其用于生产1,1-二氟乙烷（HCFC-142b）中的用途 在240-300℃下，以2-6（H 2 / HCFC-142b）的供应摩尔比脱氯化氢，使HCFC-152a产物的选择性最大化。