EP0372544A2
Expired / Lapsed
EP
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Production of aliphatic secondary amines
Assignee: Kao Corp
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Filing: 1989-12-07
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Granted: —
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Expires: 2009-12-07
Abstract
Abstract Disclosed is a process for preparing an unsaturated aliphatic primary or secondary amine from the corresponding unsaturates aliphatic nitrile without hydrogenating an olefinic bond in the molecule. The process employs a catalyst which is a combination of copper and specific metal.
Inventors
- 👤 Hiroshi Abe
- 👤 Tohro Katoh
- 👤 Hisakazu Tajima
- 👤 Kohshiro Sotoya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 17:53
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8926; B01J23/8933; C; C07; C07C; C07C209/00; C07C209/44; C07C209/48
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A process for preparing an aliphatic secondary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation while removing produces ammonia, wherein the catalyst contains (a) copper and (b) at least one metal selected from the group consisting of manganese, iron, cobalt, nickel and zinc in a metal weight ratio (a/b) of from 99/1 to 10/90.
Claim 2
Dependent Claim
82 words
A process for preparing an aliphatic secondary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation while removing produces ammonia, wherein the catalyst contains (a) copper and (b) at least one metal selected from the group consisting of manganese, iron, cobalt, nickel and zinc in a metal weight ratio (a/b) of from 99/1 to 10/90.
Claim 3
Dependent Claim
29 words
The process according to Claim 1 wherein said catalyst further contains (c) an alkali or alkali earth metal in a metal weight ratio (a.c) of from 1/1 to 100/1.
Claim 4
Dependent Claim
37 words
The process according to Claim 1 wherein said catalyst further contains (d) at least one metal selected from the group consisting of aluminum, molybdenum and tungsten in a metal weight ration (a.d) of from 1/1 to 1/0.01.
Claim 5
Dependent Claim
70 words
A process for preparing an aliphatic secondary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation as removing produced ammonia, wherein the catalyst contains (a) copper and (e) an VIII. group metal in a metal weight ration (a/e) of from 1/0.0001 to 1/0.1.
Claim 6
Dependent Claim
70 words
A process for preparing an aliphatic secondary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation as removing produced ammonia, wherein the catalyst contains (a) copper and (e) an VIII. group metal in a metal weight ration (a/e) of from 1/0.0001 to 1/0.1.
Claim 7
Dependent Claim
30 words
The process according to Claim 4 wherein said catalyst further contains (f) a IV. period transition metal except copper in a metal weight ration (a/f) of from 99/1 to 10/90.
Claim 8
Dependent Claim
29 words
The process according to Claim 5 wherein said catalyst further contains (c) an alkali or alkali earth metal in a metal weight ratio (a/c) of from 1/1 to 1/0.01.
Claim 9
Dependent Claim
37 words
The process according to Claim 5 wherein said catalyst further contains (d) at least one metal selected from the group consisting of aluminum, molybdenum and tungsten in a metal weight ratio (a/d) of from 1/1 to 1/0.01.
Claim 10
Dependent Claim
89 words
A process for preparing an aliphatic primary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation and either alkali metal hydroxide or ammonia, wherein the catalyst contains (a) copper and (e) an VIII.group platinum metal and/or (f) a IV. period transition metal except copper in a metal weight ratio (a/e) of from 1/0.0001 to 1/0.1 and (a/f) of from 99/1 to 10/90.
Claim 11
Dependent Claim
89 words
A process for preparing an aliphatic primary amine comprising reacting a C₈-C₂₄ aliphatic nitrile with hydrogen at a temperature of 150 to 250 °C and a hydrogen pressure of 1 to 50 atm (gauge pressure) in the presence of a catalyst for hydrogenation and either alkali metal hydroxide or ammonia, wherein the catalyst contains (a) copper and (e) an VIII.group platinum metal and/or (f) a IV. period transition metal except copper in a metal weight ratio (a/e) of from 1/0.0001 to 1/0.1 and (a/f) of from 99/1 to 10/90.
Claim 12
Dependent Claim
29 words
The process according to Claim 8 wherein said catalyst further contains (c) and alkali or alkali earth metal in a metal weight ratio (a/c) of from 1/1 to 1/0.01.
Claim 13
Dependent Claim
37 words
The process according to Claim 8 wherein said catalyst further contains (d) at least one metal selected from the group consisting of aluminum, molybdenum and tungsten in a metal weight ratio (a/d) of from 1/1 to 1/0.01.
References Cited (Backward Citations)
No citation records indexed.
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