Title:
金属パラジウム、銅および金を含む酢酸ビニル触媒およびその製造方法
Document Type and Number:
Japanese Patent JP4503834
Kind Code:
B2
Abstract:
A catalyst for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid, comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic copper, palladium and gold. The catalyst is prepared by steps comprising precoating the support with a water-insoluble form of copper, forming on the precoated support a water-insoluble palladium compound, reducing the palladium compound, and, if not previously reduced, the water-insoluble form of copper, to a catalytically effective amount of the free metal, impregnating the copper and palladium containing support with a solution of potassium aurate, and reducing the potassium aurate to a catalytically effective amount of metallic gold. The inventive process results in a catalyst wherein the Pd, Cu, and Au form a shell metal distribution on the catalyst support.
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Inventors:
Wang, Tao
Application Number:
JP2000551882A
Publication Date:
July 14, 2010
Filing Date:
May 19, 1999
Export Citation:
Assignee:
Celanese International Corporation
International Classes:
B01J23/89; B01J23/52; B01J23/58; B01J37/03; C07C67/055; C07C69/15
Domestic Patent References:
| JP2000514346A | ||||
| JP10072403A | ||||
| JP2002502420A | ||||
| JP8510685A |
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Yasushi Kobayashi
Hiroyuki Tomita
Shinya Hosokawa
Shosuke Imai
Tadashi Masui
Yasushi Kobayashi
Hiroyuki Tomita
Shinya Hosokawa
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