Title:
エチレンと酢酸の気相酸化による酢酸ビニルの製造用触媒、その製法およびその使用方法
Document Type and Number:
Japanese Patent JP4750283
Kind Code:
B2
Abstract:
The invention relates to a supported catalyst and the production and use thereof in the synthesis of vinyl acetate in the gaseous phase from ethylene, acetic acid and oxygen, or from gases containing oxygen, whereby the activity and selectivity are simultaneously improved. The catalyst contains palladium, at least one alkali metal compound and optionally one or more catalyst accelerators, in particular, gold, barium and/or cadmium on a porous support. Said support contains at least one reducible metal oxide, in particular oxides of the elements of groups IIIb, IVb, Vb, VIb from the periodic table of elements. Once the support has been loaded with at least one palladium compound, a reduction is carried out at a temperature of >200° C.
Inventors:
Hagemeyer Alfred
Werner Harald
Dinger Dissen Uwe
Coolin Claus
Dambeck Gunter
Gais Gerhard
Lutchu Andrea
Weitrich Stefan
Werner Harald
Dinger Dissen Uwe
Coolin Claus
Dambeck Gunter
Gais Gerhard
Lutchu Andrea
Weitrich Stefan
Application Number:
JP2000607753A
Publication Date:
August 17, 2011
Filing Date:
March 21, 2000
Export Citation:
Assignee:
Celanese Chemicals Europe Geselsyaft Mito Vesyurenktel Haftung
International Classes:
B01J23/66; B01J23/52; B01J23/58; B01J37/02; B01J37/18; C07B61/00; C07C67/05; C07C67/055; C07C69/15
Domestic Patent References:
| JPH08318159A | 1996-12-03 | |||
| JPH10139727A | 1998-05-26 | |||
| JPH0838900A | 1996-02-13 | |||
| JPH067676A | 1994-01-18 | |||
| JP2001514962A | 2001-09-18 |
Foreign References:
| WO1998018553A1 | 1998-05-07 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Tsuneo Mihara
Blacksmith
Tsuneo Mihara
Blacksmith