Claims
- 1. A method for the production of cyanocyclohexane by the hydrogenation of cyanocyclohexene at a temperature in the range of 0.degree. to 100.degree. C. under a hydrogen pressure in the range of 2 to 20 kg/cm.sup.2 in the presence of 0.001 to 0.045% by weight of a metallic palladium catalyst, based on said cyanocyclohexene.
- 2. A method according to claim 1, wherein the reaction temperature is in the range of 20.degree. to 80.degree. C. and the hydrogen pressure is in the range of 2 to 15 kg/cm.sup.2.
- 3. A method as recited in claim 1, wherein said catalyst is treated prior to said hydrogenation reaction with a heat treatment carried out under hydrogen pressure.
- 4. A method as recited in claim 2, wherein said catalyst is treated prior to said hydrogenation reaction with a heat treatment carried out under hydrogen pressure.
- 5. A method according to claim 1, wherein said metallic palladium is supported on carbon.
- 6. A method according to claim 1, and further comprising filtering to remove said catalyst from said cyanocyclohexane.
- 7. A method according to claim 5, and further comprising filtering to remove said catalyst from said cyanocyclohexane.
- 8. A method as recited in claim 5, wherein said catalyst is treated prior to said hydrogenation reaction with a heat treatment carried out under hydrogen pressure.
Priority Claims (2)
Number |
Date |
Country |
Kind |
62-312336 |
Dec 1987 |
JPX |
|
62-315118 |
Dec 1987 |
JPX |
|
Parent Case Info
This application is a divisional, application of Ser. No. 279,938, filed Dec. 5, 1988, now U.S. Pat. No. 4,973,689.
US Referenced Citations (5)
Foreign Referenced Citations (5)
Number |
Date |
Country |
1390116 |
Apr 1964 |
FRX |
38-8328 |
Jun 1963 |
JPX |
40-2353 |
Feb 1965 |
JPX |
40-22190 |
Oct 1965 |
JPX |
50-1034 |
Jan 1975 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
279938 |
Dec 1988 |
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