Claims
- 1. A method for preparing a copper-containing catalyst usable in hydrogenation reaction, comprising reducing a precursor of a copper-containing catalyst usable in hydrogenation reaction with hydrogen gas or a mixture of hydrogen and an inert gas by liquid phase reduction in a stream of a solvent which does not react with copper oxide or metallic copper, wherein the liquid phase reduction is carried out in the temperature range of from 50.degree. to 140.degree. C.
- 2. The method according to claim 1, wherein the solvent and the hydrogen gas or the mixture of hydrogen and the inert gas are introduced in the temperature range of from 20.degree. to 60.degree. C., and then the temperature is continuously or discontinuously raised to the temperature range of from 50.degree. to 140.degree. C.
- 3. The method according to claim 2, wherein the rate at which the temperature is raised is 0.5.degree. to 40.degree. C./hr.
- 4. The method according to claim 1, wherein the liquid phase reduction is carried out for more than 1.5 hours.
- 5. The method according to claim 1, wherein the hydrogen gas or the mixture of hydrogen and the inert gas is supplied at a gas hourly space velocity of from 50 to 10000/hr.
- 6. The method according to claim 1, wherein the solvent is selected from the group consisting of glyceride oils, fatty acid esters, aliphatic alcohols, hydrocarbons, and mixtures thereof.
- 7. The method according to claim 1, wherein the solvent is supplied at a liquid hourly space velocity of 0.1 to 5.0/hr.
- 8. The method according to claim 1, wherein the precursor of the copper-containing catalyst usable in hydrogenation reaction is selected from the group consisting of copper-chromium oxides, copper-zinc oxides, copper-iron oxides, copper-aluminum oxides, copper-silica oxides, and mixtures thereof.
- 9. The method according to claim 1, wherein the content of copper oxide is in the range of from 5 to 98% by weight of the total weight of the catalyst precursor.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-342536 |
Dec 1993 |
JPX |
|
Parent Case Info
This application is a divisional of application Ser. No. 08/357,173, filed on Dec. 12, 1994, the entire contents of which are hereby incorporated by reference, now U.S. Pat. No. 5,481,048.
US Referenced Citations (13)
Foreign Referenced Citations (17)
Number |
Date |
Country |
0507658 |
Jul 1992 |
EPX |
2161699 |
Jul 1973 |
FRX |
2172303 |
Sep 1973 |
FRX |
1768313 |
May 1977 |
DEX |
3443277 |
Jun 1985 |
DEX |
47014113 |
Jan 1974 |
JPX |
83050775 |
Nov 1983 |
JPX |
61-161146 |
Jul 1986 |
JPX |
61-178037 |
Aug 1986 |
JPX |
62-298457 |
Dec 1987 |
JPX |
1127042 |
May 1989 |
JPX |
1305042 |
Dec 1989 |
JPX |
2026611 |
Jan 1990 |
JPX |
5117185 |
May 1993 |
JPX |
5177140 |
Jul 1993 |
JPX |
6606953 |
|
NLX |
385625 |
Apr 1930 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
357173 |
Dec 1994 |
|