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US4082805A
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Production of aliphatic amines utilizing a crystalline aluminosilicate catalyst of zsm-5, zsm-11 or zsm-21
Assignee: Mobil Oil AS
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Filing: 1974-11-01
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Granted: 1978-04-04
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Expires: 1994-11-01
Abstract
Abstract Process for the production of aliphatic amines by reaction of a C 1 -C 5 alcohol or ether with ammonia in the presence of a catalyst comprising a crystalline aluminosilicate having the structure of ZSM-5, ZSM-11 or ZSM-21, said reaction being effected at a temperature between about 300° and about 500° C., a pressure between atmospheric and 1000 psig with the relative feed rates, expressed in grams per hour, of (1) alcohol or ether and (2) ammonia being within the approximate range of 1:1 to 5:1.
Inventors
- 👤 W. W. Kaeding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:09
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/65; B01J29/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A process for the selective production of primary aliphatic amines over secondary and tertiary amines by reaction of an ether characterized by the formula R--O--R' where R and R' are independently alkyl of 2 to 5 carbon atoms, with ammonia in the presence of a crystalline aluminosilicate catalyst of ZSM-5, ZSM-11 or ZSM-21 at a temperature between about 300° and about 500° C; a pressure between about 14.7 and 1000 psig with the relative feed rates, expressed in grams per hour of (1) ether and (2) ammonia being within the range of 1:1 to 5:1.
Claim 2
Dependent Claim
95 words
A process for the selective production of primary aliphatic amines over secondary and tertiary amines by reaction of an ether characterized by the formula R--O--R' where R and R' are independently alkyl of 2 to 5 carbon atoms, with ammonia in the presence of a crystalline aluminosilicate catalyst of ZSM-5, ZSM-11 or ZSM-21 at a temperature between about 300° and about 500° C; a pressure between about 14.7 and 1000 psig with the relative feed rates, expressed in grams per hour of (1) ether and (2) ammonia being within the range of 1:1 to 5:1.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein said crystalline aluminosilicate is characterized by a silica/alumina ratio in excess of 30.
Claim 4
Dependent Claim
53 words
The process of claim 1 wherein said reaction is carried out at a temperature between about 350° and about 450° C at a pressure between about 14.7 and 1000 psig with the relative rates, measured in grams per hour, of (1) ether and (2) ammonia being within the range of 2:1 to 4:1.
Claim 5
Dependent Claim
11 words
The process of claim 1 wherein the crystalline aluminosilicate is ZSM-5.
Claim 6
Dependent Claim
11 words
The process of claim 1 wherein the crystalline aluminosilicate is ZSM-11.
Claim 7
Dependent Claim
11 words
The process of claim 1 wherein the crystalline aluminosilicate is ZSM-21.
Claim 8
Dependent Claim
11 words
The process of claim 3 wherein the crystalline aluminosilicate is ZSM-5.
Claim 9
Dependent Claim
11 words
The process of claim 3 wherein the crystalline aluminosilicate is ZSM-11.
Claim 10
Dependent Claim
11 words
The process of claim 3 wherein the crystalline aluminosilicate is ZSM-21.
Claim 11
Dependent Claim
11 words
The process of claim 1 wherein said ether is diethyl ether.
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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) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |