公开(公告)号：AU3610793A

公开(公告)日：1993-09-01

申请号：AU3610793

申请日：1993-02-04

Applicant: CATALYTICA INC

Inventor： SCHUBERT PAUL ,  SCHUBERT DAVID W ,  SMITH ARNOLD R ,  MAHAJAN SURESH ,  ROSTRUP-NIELSEN THOMAS

IPC: B01J23/10 ,  B01J27/08 ,  B01J27/135 ,  C01B7/09 ,  C01B7/00

Abstract: This invention is a catalyst and a process using that catalyst for oxidizing hydrogen bromide to form elemental bromine. The inventive catalyst composition comprises cerium bromide on certain zirconia containing supports. The zirconia support, preferably largely in the baddeleyite phase, stabilizes the cerium bromide catalyst against cerium oxide formation at operating temperatures and gives the catalyst excellent activity at lower temperatures.

公开(公告)号：BR9106136A

公开(公告)日：1993-03-02

申请号：BR9106136

申请日：1991-03-05

Applicant: CATALYTICA INC

Inventor： COOK MICHAEL L ,  FELLMANN JERE D ,  HAMM DAVID R ,  MAHAJAN SURESH ,  MURAOKA MARK T ,  ROSTRUP-NIELSEN THOMAS ,  SMITH ARNOLD R

IPC: B01J31/16 ,  B01J23/44 ,  B01J27/198 ,  B01J27/199 ,  C07B61/00 ,  C07C29/141 ,  C07C45/28 ,  C07C45/30 ,  C07C45/34 ,  C07C47/06 ,  C07C49/10 ,  C07C45/00

Abstract: PCT No. PCT/US91/01508 Sec. 371 Date Sep. 4, 1992 Sec. 102(e) Date May 24, 1991 PCT Filed Mar. 5, 1991 PCT Pub. No. WO91/13851 PCT Pub. Date Sep. 19, 1991.The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst, a polyoxoacid or polyoxoanion oxidant comprising vanadium, and chloride ions. It also provides processes for oxidation of olefins to carbonyl products, comprising contacting olefin with the aqueous catalyst solutions of the present invention. It also provides processes for oxidation of olefins to carbonyl products by dioxygen, comprising contacting olefin with the aqueous catalyst solutions of the present invention, and further comprising contacting dioxygen with the aqueous catalyst solutions. The present invention also provides a process for the oxidation of palladium(0) to palladium(II) comprising contacting the palladium(0) with an aqueous solution comprising chloride ions and a polyoxoacid or polyoxoanion oxidant comprising vanadium.

公开(公告)号：CA2077549A1

公开(公告)日：1991-09-06

申请号：CA2077549

申请日：1991-03-05

Applicant: CATALYTICA INC

Inventor： COOK MICHAEL L ,  FELLMANN JERE D ,  HAMM DAVID R ,  MAHAJAN SURESH ,  MURAOKA MARK T ,  ROSTRUP-NIELSEN THOMAS ,  SMITH ARNOLD R ,  GRATE JOHN H ,  SAXTON ROBERT J ,  KLINGMAN KENNETH A

IPC: B01J31/16 ,  B01J23/44 ,  B01J27/198 ,  B01J27/199 ,  C07B61/00 ,  C07C29/141 ,  C07C45/28 ,  C07C45/30 ,  C07C45/34 ,  C07C47/06 ,  C07C49/10

Abstract: 2077549 9113852 PCTABS00007 This invention is to the production of methyl ethyl ketone (MEK) from mixed normal butenes using polyoxoanion oxidants in an aqueous solution, catalyzed by palladium and preferably containing minor amounts of dissolved chloride ion. An intermediate MEK stream is hydrogenated to remove trace amounts of butyraldehyde from the product MEK stream.

公开(公告)号：EP0626885A4

公开(公告)日：1995-11-22

申请号：EP93904912

申请日：1993-02-04

Applicant: CATALYTICA INC

Inventor： SCHUBERT PAUL ,  SCHUBERT DAVID W ,  SMITH ARNOLD R ,  MAHAJAN SURESH FERGUSON DRIVE ,  ROSTRUP-NIELSEN THOMAS

IPC: B01J23/10 ,  B01J27/08 ,  B01J27/135 ,  C01B7/09 ,  C01B7/00

CPC classification number: C01B7/096 ,  B01J23/10 ,  B01J27/08 ,  B01J27/135

Abstract: This invention is a catalyst comprising cerium bromide on a baddeleyite phase zirconia support and a process using that catalyst to form elemental bromine. The figure shows an embodiment of the inventive process wherein HBr and oxygen are mixed to form a reactor feedstream (214) which is then introduced into reactor (216) that contains the catalyst. The reaction product stream (218) is cooled and separated to produce the desired Br2 product stream (258).