公开(公告)号：US10562831B2

公开(公告)日：2020-02-18

申请号：US15761137

申请日：2016-09-15

Applicant: Arkema Inc.

Inventor： Robert G. Syvret ,  Daniel Alford, Jr. ,  Anne Pigamo

IPC: C07C17/25 ,  C07C21/04

Abstract: The present disclosure relates to catalyzed gas-phase dehydrochlorination of a pentachloropropane to form a tetrachloropropene with high selectivity and purity.

公开(公告)号：US10166538B2

公开(公告)日：2019-01-01

申请号：US14763874

申请日：2014-01-20

Applicant: Arkema Inc.

Inventor： Robert G. Syvret ,  Patrick K. Janney ,  Sri R. Seshadri

IPC: C07C17/20 ,  B01J23/26 ,  B01J23/90 ,  B01J23/92 ,  B01J38/46 ,  B01J27/32 ,  B01J37/26 ,  B01J23/86 ,  C07C17/21 ,  B01J27/138 ,  B01J23/34 ,  B01J27/132

Abstract: A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. with a source of reactive fluorine, for example nitrogen trifluoride (NF3) or fluorine (F2). Fluorinated compounds may be prepared by the gas phase reaction of hydrogen fluoride (HF) with various substrates such as chlorinated compounds. A number of metal oxide-based catalysts have been developed for this purpose.

公开(公告)号：US20180265435A1

公开(公告)日：2018-09-20

申请号：US15761137

申请日：2016-09-15

Applicant: Arkema Inc.

Inventor： Robert G. Syvret ,  Daniel Alford JR. ,  Anne Pigamo

IPC: C07C17/25 ,  C07C21/04

CPC classification number: C07C17/25 ,  C07C21/04 ,  C07C2523/26 ,  C07C2523/755 ,  C07C2527/12

Abstract: The present disclosure relates to catalyzed gas-phase dehydrochlorination of a pentachloropropane to form a tetrachloropropene with high selectivity and purity.