Title:
CONTINUOUS PRODUCTION OF CYCLOHEXENE BY PARTIAL HYDROGENATION OF BENZENE
Document Type and Number:
Japanese Patent JP3579507
Kind Code:
B2
Abstract:
PURPOSE: To provide a method for the continuous production of cyclohexene in a gaseous state in a high selectivity and a high yield by partially hydrogenating gaseous benzene with hydrogen by heating and pressurizing the gaseous benzene in the presence of water and a ruthenium catalyst.
CONSTITUTION: Gaseous benzene is introduced into a solution or suspension of a catalyst in a liquid aqueous phase in the presence of water and the ruthenium catalyst (e.g. ruthenium carried by lanthanum oxide and a ruthenium/zinc precipitated catalyst), and the solution or suspension with the introduced benzene is heated and pressurized to partially hydrogenating the benzene to continuously provide the objective cyclohexene in a gaseous state. The amount of the ruthenium catalyst used is 0.01-100 wt.%, especially 0.1-80 wt.% expressed in terms of ruthenium based on that of the benzene.
Inventors:
Johann, Gaube
Frank, debert
Frank, debert
Application Number:
JP16118495A
Publication Date:
October 20, 2004
Filing Date:
June 27, 1995
Export Citation:
Assignee:
BASF Aktiengesellschaft
International Classes:
B01J23/46; B01J23/63; C07B61/00; C07C5/11; C07C13/20; (IPC1-7): C07C5/11; C07C13/20
Domestic Patent References:
| JP5255136A | ||||
| JP63243039A | ||||
| JP62061935A | ||||
| JP7504418A | ||||
| JP4074141A | ||||
| JP2104536A | ||||
| JP53063350A | ||||
| JP60202829A |
Attorney, Agent or Firm:
Satoshi Eto