EP0102140A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catalyzed preparation of amines from alkyl sulfates
Assignee: Procter and Gamble Co
•
Filing: 1983-04-29
•
Granted: —
•
Expires: 2003-04-29
Abstract
Abstract An improved process for making C 6 to C 22 alkyl amines by the reaction of a C 6 to C 22 alkyl sulfate with ammonia or primary and secondary alkyl amines and strong base, the improvement comprising conduct of the reaction in the presence of an effective amount of a catalyst ion selected from R 3 SO 3 - (wherein R 3 is C 1 to C 4 alkyl, phenyl, or C, to C 3 alkyl-substituted phenyl), I - , Br - , NO 3 - , Cl - and F-.
Inventors
- 👤 Ross Dale Rieke
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 22:15
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
1 . A process for preparing amines containing a C 6 -C 22 alkyl group, in which a C 6 to C 22 alkyl sulfate, a strong base and a nitrogen compound selected from ammonia and primary and secondary alkyl and hydroxyalkyl amines containing from 1 to 4 carbon atoms in their alkyl or hydroxyalkyl groups are reacted at a temperature of from 100°C to 250°C, in a closed system under pressure, characterised in that the process is carried out in the presence of an effective amount of a catalyst selected from wherein R 3 SO 3 - , I - , Br - , NO 3 - , Cl and F - wherein R 3 is C 1 to C 4 alkyl, phenyl or C 1 to C 3 alkyl-substituted phenyl.
Claim 2
Dependent Claim
132 words
1 . A process for preparing amines containing a C 6 -C 22 alkyl group, in which a C 6 to C 22 alkyl sulfate, a strong base and a nitrogen compound selected from ammonia and primary and secondary alkyl and hydroxyalkyl amines containing from 1 to 4 carbon atoms in their alkyl or hydroxyalkyl groups are reacted at a temperature of from 100°C to 250°C, in a closed system under pressure, characterised in that the process is carried out in the presence of an effective amount of a catalyst selected from wherein R 3 SO 3 - , I - , Br - , NO 3 - , Cl and F - wherein R 3 is C 1 to C 4 alkyl, phenyl or C 1 to C 3 alkyl-substituted phenyl.
Claim 3
Dependent Claim
15 words
The process of Claim 1 wherein the pressure is from 14.1 to 70.3 kg/sq cm.
Claim 4
Dependent Claim
15 words
The process of Claim 2 wherein the catalyst is selected from I and Br .
Claim 5
Dependent Claim
50 words
The process of Claim 3 wherein when the nitrogen compound is ammonia, the temperature is from 200°C to 250°C, when the nitrogen compound is a primary amine the temperature is from 150°C to 200°C and when the nitrogen compound is a secondary amine the temperature is from 100°C to 200°C.
Claim 6
Dependent Claim
30 words
The process of Claim 4 wherein the nitrogen compound is a secondary amine, the temperature is from 130°C to 160°C and the pressure is from 14.1 to 35.1 kg/sq cm.
Claim 7
Dependent Claim
25 words
The process of Claims 1 to 5 wherein the amount of catalyst is from 5 to 100 mole percent of the amount of alkyl sulfate.
Claim 8
Dependent Claim
39 words
The process of Claim 6 wherein the alkyl sulfate is selected from C 8 to C 18 alkyl sulfates and mixtures thereof, the amine is dimethylamine, the strong base is caustic soda and the catalyst is I - .
References Cited (Backward Citations)
GB1067762A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.