US4229374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine process using Cu-Sn-Na catalyst
Assignee: Shell USA Inc
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Filing: 1979-06-28
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Granted: 1980-10-21
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Expires: 1999-06-28
Abstract
Abstract Tertiary amines are produced by reacting aliphatic, cycloaliphatic or araliphatic alcohols, aldehydes or ketones with ammonia, primary or secondary amines in the presence of a catalyst having improved selectivity and stability and which comprises a mixture of copper, tin and an alkali metal supported on a suitable carrier.
Inventors
- 👤 Lynn H. Slaugh
- 👤 Galeon W. Schoenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/835
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
100 words
A catalyst for the production of tertiary amines by reacting aliphatic, cycloaliphatic or araliphatic alcohols, aldehydes or ketones having up to twenty-five carbon atoms with ammonia, primary or secondary amines having from one to eight carbon atoms wherein the alkyl moiety of the alcohol, aldehyde or ketone replaces the hydrogen(s) on the ammonia, primary or secondary amines which comprises from about 0.05 to about 50 percent by weight of copper, from about 0.05 to about 50 percent by weight of tin and from about 0.003 to about 30 percent by weight of an alkaline metal supported on a porous carrier.
Claim 2
Dependent Claim
100 words
A catalyst for the production of tertiary amines by reacting aliphatic, cycloaliphatic or araliphatic alcohols, aldehydes or ketones having up to twenty-five carbon atoms with ammonia, primary or secondary amines having from one to eight carbon atoms wherein the alkyl moiety of the alcohol, aldehyde or ketone replaces the hydrogen(s) on the ammonia, primary or secondary amines which comprises from about 0.05 to about 50 percent by weight of copper, from about 0.05 to about 50 percent by weight of tin and from about 0.003 to about 30 percent by weight of an alkaline metal supported on a porous carrier.
Claim 3
Dependent Claim
44 words
The catalyst of claim 1 wherein the copper ranges from about 0.5 to about 20 percent by weight, the tin ranges from about 0.5 to about 20 percent by weight and the alkali metal ranges from about 0.01 to about 10 percent by weight.
Claim 4
Dependent Claim
44 words
The catalyst of claim 2 wherein the copper ranges from about 1 to about 10 percent by weight, the tin ranges from about 0.5 to about 5 percent by weight and the alkali metal ranges from about 0.2 to about 5 percent by weight.
Claim 5
Dependent Claim
13 words
The catalyst of claims 1, 2 or 3 wherein the support is alumina.
Claim 6
Dependent Claim
14 words
The catalyst of claims 1, 2 or 3 wherein the support is gamma alumina.
Claim 7
Dependent Claim
13 words
The catalyst of claims 1, 2 or 3 wherein the support is silica.
Claim 8
Dependent Claim
16 words
The catalyst of claims 1, 2 or 3 wherein the alkali metal is sodium or potassium.
Claim 9
Dependent Claim
128 words
In the process for preparing tertiary amines by reacting aliphatic, cycloaliphatic or araliphatic alcohols, aldehydes or ketones having up to twenty-five carbon atoms with ammonia, primary or secondary amines having from one to eight carbon atoms in a reducing atmosphere at a temperature of from about 160° C. to about 350° C. wherein the alkyl moiety of the alcohol, aldehyde or ketone replaces the hydrogen(s) on the ammonia primary or secondary amine, the improvement which comprises carrying of the reaction in the presence of a catalyst comprising from about 0.05 to about 50 percent by weight of copper, from about 0.05 to about 50 percent by weight of tin and from about 0.003 to about 30 percent by weight of an alkali metal supported on a porous carrier.
Claim 10
Dependent Claim
128 words
In the process for preparing tertiary amines by reacting aliphatic, cycloaliphatic or araliphatic alcohols, aldehydes or ketones having up to twenty-five carbon atoms with ammonia, primary or secondary amines having from one to eight carbon atoms in a reducing atmosphere at a temperature of from about 160° C. to about 350° C. wherein the alkyl moiety of the alcohol, aldehyde or ketone replaces the hydrogen(s) on the ammonia primary or secondary amine, the improvement which comprises carrying of the reaction in the presence of a catalyst comprising from about 0.05 to about 50 percent by weight of copper, from about 0.05 to about 50 percent by weight of tin and from about 0.003 to about 30 percent by weight of an alkali metal supported on a porous carrier.
Claim 11
Dependent Claim
43 words
The process of claim 8 wherein the copper ranges from about 0.5 to about 20 percent by weight, the tin ranges from about 0.5 to about 20 percent by weight and the sodium ranges from about 0.01 to about 10 percent by weight.
Claim 12
Dependent Claim
44 words
The process of claim 9 wherein the copper ranges from about 1 to about 10 percent by weight, the tin ranges from about 0.5 to about 5 percent by weight and the alkali metal ranges from about 0.2 to about 5 percent by weight.
Claim 13
Dependent Claim
13 words
The process of claims 8, 9 or 10 wherein the support is alumina.
Claim 14
Dependent Claim
14 words
The process of claims 8, 9 or 10 wherein the support is gamma alumina.
Claim 15
Dependent Claim
13 words
The process of claims 8, 9 or 10 wherein the support is silica.
Claim 16
Dependent Claim
16 words
The process of claims 8, 9 or 10 wherein the alkali metal is sodium or potassium.
Claim 17
Dependent Claim
14 words
The process of claim 8, 9 or 10 wherein the reducing atmosphere is hydrogen.
Claim 18
Dependent Claim
26 words
The process of claims 8, 9 or 10 wherein the reducing atmosphere is hydrogen maintained at a partial pressure from about 15 to about 400 psi.
Claim 19
Dependent Claim
19 words
The process of claims 8, 9 or 10 wherein the temperature ranges from about 180° to about 300° C.
Claim 20
Dependent Claim
19 words
The process of claims 8, 9 or 10 wherein the temperature ranges from about 250° to about 300° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |