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US4229374A Expired / Lapsed US ⏱️ 0.0 years remaining

Amine process using Cu-Sn-Na catalyst

Assignee: Shell USA Inc
•
Filing: 1979-06-28
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Granted: 1980-10-21
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Expires: 1999-06-28
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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.

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

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