METHOD FOR REGENERATING HYDROGENATION CATALYST

Title:

METHOD FOR REGENERATING HYDROGENATION CATALYST

Document Type and Number:

Japanese Patent JP3949204

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To almost completely reactivate a palladium-base hydrogenation catalyst by removing the catalyst poison from the catalyst deteriorated in activity and improving the dispersion of metal.
SOLUTION: A palladium-base hydrogenation catalyst contg. chlorine and deteriorated in activity is steamed and then catalytically treated with an oxygen- contg. gas at 100-500°C. Consequently, the catalyst poison is removed, the dispersion of metal is improved, and an almost completely reactivated palladium-base hydrogenation catalyst is obtained.

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Inventors:

Shiraki Yasushi
Kenichi Wakui
Shinichi Kono
Harumi Takahashi

Application Number:

JP487997A

Publication Date:

July 25, 2007

Filing Date:

January 14, 1997

Export Citation:

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Assignee:

IDEMITSU KOSAN CO.,LTD.

International Classes:

B01J23/44; B01J23/96; B01J38/06; B01J38/12; C07B35/02; C07B61/00; C07C5/03; (IPC1-7): B01J23/96; B01J23/44; B01J38/06; B01J38/12; C07B35/02; C07B61/00; C07C5/03

Foreign References:

US3684740

Attorney, Agent or Firm:

Tamotsu Otani

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