US4490571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oligomerization of olefins
Assignee: Honeywell UOP LLC
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Filing: 1983-10-05
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Granted: 1984-12-25
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Expires: 2003-10-05
Abstract
Abstract An oligomerization process is effected by treating olefinic hydrocarbons containing from 2 to about 6 carbon atoms in the presence of a catalyst comprising boron fluoride composited on an alumina support. The catalyst is treated with an additive comprising an oxygen or nitrogen-containing compound either prior to or during the process whereby the product which is obtained from the reaction will contain oligomer isomers possessing minimal branching.
Inventors
- 👤 Mark J. O'Hara
- 👤 Tamotsu Imai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:25
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/12; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/12; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
65 words
In a process for the oligomerization of an olefin which contains from 2 to about 6 carbon atoms which comprises oligomerizing said olefin at oligomerization conditions in the presence of a catalyst comprising boron fluoride composited on an inorganic oxide, and recovering the resultant oligomer, the improvement which comprises treating said catalyst with an organic compound selected from the group consisting of ethers and amines.
Claim 2
Dependent Claim
65 words
In a process for the oligomerization of an olefin which contains from 2 to about 6 carbon atoms which comprises oligomerizing said olefin at oligomerization conditions in the presence of a catalyst comprising boron fluoride composited on an inorganic oxide, and recovering the resultant oligomer, the improvement which comprises treating said catalyst with an organic compound selected from the group consisting of ethers and amines.
Claim 3
Dependent Claim
42 words
The process of claim 1 in which said oligomerization conditions include a temperature in the range of from about 50° to about 300° C. and a pressure in the range of from about 100 to about 1500 pounds per square inch gauge.
Claim 4
Dependent Claim
13 words
The process of claim 1 in which said inorganic oxide is an alumina.
Claim 5
Dependent Claim
11 words
The process of claim 3 in which said alumina is gamma-alumina.
Claim 6
Dependent Claim
12 words
The process of claim 1 in which said inorganic oxide is silica-alumina.
Claim 7
Dependent Claim
34 words
The process of claim 1 in which said boron fluoride is present on said inorganic oxide in an amount in the range of from about 1% to about 10% by weight of said catalyst.
Claim 8
Dependent Claim
11 words
The process of claim 1 in which said olefin is propylene.
Claim 9
Dependent Claim
13 words
The process of claim 1 in which said olefin is butene-1 or butene-2.
Claim 10
Dependent Claim
18 words
The process of claim 8 in which said resultant oligomer is a mixture of methylheptene, dimethylhexene, and trimethylpentene.
Claim 11
Dependent Claim
11 words
The process of claim 1 in which said olefin is pentene-2.
Claim 12
Dependent Claim
17 words
The process of claim 10 in which said oligomer is a mixture of methylnonene, dimethyloctene and trimethylheptene.
Claim 13
Dependent Claim
13 words
The process of claim 1 in which said organic compound is dimethyl ether.
Claim 14
Dependent Claim
13 words
The process of claim 1 in which said organic compound is diethyl ether.
Claim 15
Dependent Claim
13 words
The process of claim 1 in which said organic compound is dipropyl ether.
Claim 16
Dependent Claim
11 words
The process of claim 1 in which said compound is methylamine.
Claim 17
Dependent Claim
11 words
The process of claim 1 in which said compound is ethylamine.
Claim 18
Dependent Claim
25 words
The process of claim 1 in which said catalyst is treated with from about 10 ppm to about 5% by weight of said organic compound.
Claim 19
Dependent Claim
22 words
The process of claim 1 in which said catalyst is treated with said organic compound prior to the start-up of said process.
Claim 20
Dependent Claim
17 words
The process of claim 1 in which said catalyst is treated with said organic compound in situ.
References Cited (Backward Citations)
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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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |