METHOD FOR HYDROGENATING AND REDUCING CYCLIC ORGANIC COMPOUND

Title:

METHOD FOR HYDROGENATING AND REDUCING CYCLIC ORGANIC COMPOUND

Document Type and Number:

Japanese Patent JP3023809

Kind Code:

B2

Abstract:

PURPOSE: To enable the efficient carrying out of a hydrogenating reduction of a cyclic organic compound under conditions of high safety without requiring a catalyst such as the conventional nickel by catalytically hydrogenating the cyclic organic compound with hydrogen released from a hydrogen storing alloy.
CONSTITUTION: A cyclic organic compound having one or more double bonds, preferably an aromatic compound or a heterocyclic compound, especially an aromatic hydrocarbon, furan, pyrrole or pyridine is hydrogenated and reduced. In the process, a hydrogen storing alloy (e.g. CaNi5 or LaNi5) containing a compound having a hexagonal CaCu5 type crystal structure comprising M (which denotes a rare earth element or Ca element) and Ni as essential elements as a main phase is used and the cyclic organic compound is catalytically hydrogenated with hydrogen released from the alloy to reduce the one or more double bonds. After the reaction, the hydrogen gas and the reactional solution are recovered and the hydrogen storing alloy is cooled. The hydrogen is then recycled for repeated use in the next reducing reaction. Since the hydrogen storing alloy has a high catalytic ability, the cyclic organic compound can safely be reduced with a high reduction ratio even under 30kg/cm2 or lower hydrogen gas pressure.

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Inventors:

Norihiro Kawasaki
Minoru Morita
Hiroaki Konishi
Mami Kawanari
Shunichi Dosako
ordination

Application Number:

JP35568091A

Publication Date:

March 21, 2000

Filing Date:

December 24, 1991

Export Citation:

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Assignee:

Snow Brand Milk Products Co., Ltd.

International Classes:

B01J23/76; B01J23/78; C07B35/02; C07B61/00; C07C5/05; C07C5/10; C07C5/11; C07C13/12; C07C13/18; C07C13/26; C07C13/48; C07C13/58; C07C13/60; C07C37/00; C07C39/17; C07C51/36; C07C61/08; C07C209/72; C07C211/36; C07D207/16; C07D295/02; C07D307/08; C07D307/24; (IPC1-7): C07B35/02; B01J23/76; B01J23/78; C07C5/05; C07C5/10; C07C5/11; C07C13/12; C07C13/18; C07C13/26; C07C13/48; C07C13/58; C07C13/60; C07C37/00; C07C39/17; C07C51/36; C07C61/08; C07C209/72; C07C211/36; C07D207/16; C07D295/02; C07D307/08; C07D307/24

Domestic Patent References:

JP616580A
JP2263900A
JP2261897A
JP277496A
JP63268799A

Attorney, Agent or Firm:

Eiko Funahashi

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