公开(公告)号：IN181704B

公开(公告)日：1998-09-05

申请号：IN522CA1994

申请日：1994-07-04

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J37/02

公开(公告)号：NZ264006A

公开(公告)日：1996-01-26

申请号：NZ26400694

申请日：1994-07-14

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15

Abstract: The invention relates to shell-shaped Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, production thereof and use thereof for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The said catalysts are produced by spraying the support particles, under conditions of intimate mixture, with a solution of salts of the corresponding elements in the form of droplets of a mean diameter of at least 0.3 mm or in the form of liquid jets and then immediately drying them, the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume during spraying being 5 to 80% of the pore volume of the support particles.

公开(公告)号：CA2128154A1

公开(公告)日：1995-01-17

申请号：CA2128154

申请日：1994-07-15

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WOERNER KARL-FRED

IPC: B01J23/63 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/80

Abstract: Surface impregnated catalyst, process for the production thereof, and use thereof or the preparation of vinyl acetate The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by impregnating the support particles, while mixing intimately, with a solution of salts of the corresponding elements and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa?s and the solution volume in impregnation being from 5 to 80% of the pore volume of the support particles.

公开(公告)号：ZA964083B

公开(公告)日：1996-12-03

申请号：ZA964083

申请日：1996-05-22

Applicant: HOECHST AG

Inventor： ABEL ROLAND

IPC: B01J23/60 ,  B01J23/656 ,  C07C67/055 ,  B01J ,  C07C

Abstract: A catalyst useful for the manufacture of vinyl acetate from acetic acid, oxygen and ethylene which contains palladium, calcium, and at least one of zirconium and rhenium and the method of manufacture of vinyl acetate using the catalyst.

公开(公告)号：NZ264005A

公开(公告)日：1996-01-26

申请号：NZ26400594

申请日：1994-07-14

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J23/63 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/66

Abstract: The invention relates to Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts constructed in a shell-shape, their production and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The said catalysts are produced by impregnating the support particles, intimately mixing them with a solution of salts of the corresponding elements and then immediately drying them, the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume during impregnation being 5 to 80% of the pore volume of the support particles.

公开(公告)号：NZ264004A

公开(公告)日：1996-01-26

申请号：NZ26400494

申请日：1994-07-14

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/66

Abstract: The invention relates to Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts constructed in a shell-shape, their production and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The said catalysts are produced by impregnating the support particles with a solution of salts of the corresponding elements and then drying them, the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume during impregnation being more than 80% of the pore volume of the support particles and the duration of impregnation and the time until the beginning of drying being selected to be short enough so that after drying is completed, a shell of 5% to 80% of the pore volume of the support particles contains the said metal salts.

公开(公告)号：CA2128162A1

公开(公告)日：1995-01-17

申请号：CA2128162

申请日：1994-07-15

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WOERNER KARL-FRED

IPC: B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/80

Abstract: Surface impregnated catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate The invention relates to Pd/K/Au, Pd/K/Ba, or Pd/K/Cd supported catalysts having an impregnated layer structure, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by spraying the support particles, while mixing intimately with a solution of salt of the corresponding elements in the form of drops having an average diameter of at least 0.3 mm or in the form of liquid jets and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa?s and the solution volume in spraying being from 5 to 80 % of the pore volume of the support particles.

公开(公告)号：CA2128161A1

公开(公告)日：1995-01-17

申请号：CA2128161

申请日：1994-07-15

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WOERNER KARL-FRED

IPC: B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/80

Abstract: Surface impregnated catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate The invention relates to Pd/R/Au, Pd/R/Ba or Pd/R/Cd supported catalysts built up in the form of an outer layer, the production thereof and the use thereof for preparing vinylacetate from ethylene, acetic acid and oxygen in the gas phase. The specified catalysts are produced by impregnating the support particles with a solution of salts of the corresponding elements and then drying them, with the dynamic viscosity of the solution being at least 0.003 Pa?s and the solution volume in impregnation being more than 80 % of the pore volume of the support particles and the duration of the impregnation and also the time until commencement of the drying being selected 80 as to be sufficiently short for, after completion of the drying, the specified metal salts to be present in an outer layer of from 5 % to 80 % of the pore volume of the support particles.

公开(公告)号：IN181915B

公开(公告)日：1998-11-07

申请号：IN528CA1994

申请日：1994-07-05

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J23/52 ,  B01J23/58 ,  B01J37/02 ,  C07C67/055 ,  B01J2/60

公开(公告)号：IN181636B

公开(公告)日：1998-08-01

申请号：IN523CA1994

申请日：1994-07-04

Applicant: HOECHST AG

Inventor： ABEL ROLAND ,  WORNER KARL-FRED

IPC: B01J23/44 ,  C07C67/05 ,  C07C69/01