Claims
- 1. A process for the preparation of an aliphatic amine, which comprises the steps of preparing an aliphatic nitrile by reacting at least one compound selected from the group consisting of
- (1) C.sub.6 -C.sub.22 aliphatic monocarboxylic acids,
- (2) C.sub.6 -C.sub.22 aliphatic dicarboxylic acids,
- (3) C.sub.1 -C.sub.5 alkyl esters of C.sub.6 -.sub.22 aliphatic monocarboxylic acids,
- (4) C.sub.1 -C.sub.5 alkyl esters of C.sub.6 -C.sub.22 aliphatic dicarboxylic acids, and
- (5) aliphatic glycerides
- with ammonia in the presence of a composite oxide catalyst comprising titanium and at least another metal, and subsequently hydrogenating the aliphatic nitrile.
- 2. A process according to claim 1, wherein the metal is selected from the group consisting of silicon, niobium, zirconium, tantalum, gallium and germanium.
- 3. A process according to claim 1, wherein the oxide of the metal other than titanium is contained in the composite oxide catalyst in an amount of 1 to 25% by weight.
- 4. A process according to claim 1, wherein the oxide of the metal other than titanium is contained in the composite oxide catalyst in an amount of 1 to 15% by weight.
- 5. A process according to claim 1, wherein the reaction is conducted by a liquid-phase process.
- 6. A process according to claim 1, where the hydrogenation is conducted using a Raney Ni or Raney Co catalyst.
- 7. A process according to claim 6, where the hydrogenation is conducted at a temperature of 80.degree. to 250.degree. C.
- 8. A process according to claim 7, wherein the hydrogenation is conducted at a hydrogen pressure of 0.1 to 5 MPa.
- 9. A process according to claim 8, where the hydrogenation is conducted in the presence of an alkali metal hydroxide or ammonia.
Priority Claims (2)
Number |
Date |
Country |
Kind |
10-178415 |
Jun 1998 |
JPX |
|
10-178416 |
Jun 1998 |
JPX |
|
Parent Case Info
This application is a division of application Ser. No. 09/314,118 filed on May 19, 1999 U.S. Pat. No. 6,005,134.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
2493637 |
Niederhauser |
Jan 1950 |
|
Foreign Referenced Citations (3)
Number |
Date |
Country |
704 494 |
Apr 1941 |
DEX |
58-39653 |
Aug 1983 |
JPX |
4-208260 |
Jul 1992 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
314118 |
May 1999 |
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