Patent US4740652A successfully refreshed from Google Patents.
US4740652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the oligomerization of olefins
Assignee: Honeywell UOP LLC
•
Filing: 1987-02-27
•
Granted: 1988-04-26
•
Expires: 2007-02-27
Abstract
Abstract Olefinic hydrocarbons which contain from 2 to about 6 carbon atoms may be oligomerized to form oligomers of desired configuration utilizing a process which comprises contacting said olefins with a catalyst which comprises a porous support containing a catalytically effective amount of a non-stoichiometric hydrogen and oxygen-containing iron group metal in combination with a catalytically effective amount of an alkyl aluminum compound and an aluminum halide. Oligomerization conditions which are employed to effect the process will include temperatures in the range of from about -20° to about 120° C. and a pressure in the range of from about 350 to about 1,000 pounds per square inch gauge.
Inventors
- 👤 Robert R. Frame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:06
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C08; C08F; C08F10/00; B01J2231/00; B01J2231/20; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2527/00; C07C2527/06; C07C2527/125; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
112 words
A process for the oligomerization of an olefinic hydrocarbon which comprises contacting said hydrocarbon at oligomerization conditions with a catalytic composite comprised of a catalytically effective amount of an alkyl aluminum compound and an aluminum halide composited on a porous support which contains a catalytically effective amount of an iron group metal compound prepared by the steps of impregnating a porous support with an aqueous solution of an iron group metal salt, calcining said impregnated support at a temperature in the range of from about 350° to 450° C., and contacting said calcined support with a solution comprised of an alkyl aluminum compound and an aluminum halide, and recovering the resultant oligomer.
Claim 2
Dependent Claim
112 words
A process for the oligomerization of an olefinic hydrocarbon which comprises contacting said hydrocarbon at oligomerization conditions with a catalytic composite comprised of a catalytically effective amount of an alkyl aluminum compound and an aluminum halide composited on a porous support which contains a catalytically effective amount of an iron group metal compound prepared by the steps of impregnating a porous support with an aqueous solution of an iron group metal salt, calcining said impregnated support at a temperature in the range of from about 350° to 450° C., and contacting said calcined support with a solution comprised of an alkyl aluminum compound and an aluminum halide, and recovering the resultant oligomer.
Claim 3
Dependent Claim
45 words
The process as set forth in claim 1 in which said oligomerization conditions include a temperature in the range of from about -20° to about 120° C. and a pressure in the range of from about 350 to about 1,000 pounds per square inch gauge.
Claim 4
Dependent Claim
21 words
The process as set forth in claim 1 in which said olefinic hydrocarbon contains from 2 to about 6 carbon atoms.
Claim 5
Dependent Claim
42 words
The process as set forth in claim 1 in which said iron group metal is present in said catalytic composite on an elemental basis in an amount in the range of from about 1% to about 20% by weight of said composite.
Claim 6
Dependent Claim
45 words
The process as set forth in claim 1 in which said alkyl aluminum compound is present in said catalytic composite in a mole ratio in the range of from about 0.05:1 to about 6:1 moles of alkyl aluminum compound per mole of iron group metal.
Claim 7
Dependent Claim
16 words
The process as set forth in claim 1 in which said iron group metal is nickel.
Claim 8
Dependent Claim
16 words
The process as set forth in claim 1 in which said iron group metal is cobalt.
Claim 9
Dependent Claim
19 words
The process as set forth in claim 1 in which said alkyl aluminum compound is an alkyl aluminum halide.
Claim 10
Dependent Claim
18 words
The process as set forth in claim 8 in which said alkyl aluminum halide is dimethyl aluminum chloride.
Claim 11
Dependent Claim
17 words
The process as set forth in claim 8 in which said aluminum halide is diethyl aluminum chloride.
Claim 12
Dependent Claim
16 words
The process as set forth in claim 1 in which said aluminum halide is aluminum chloride.
Claim 13
Dependent Claim
16 words
The process as set forth in claim 1 in which said aluminum halide is aluminum bromide.
Claim 14
Dependent Claim
15 words
The process as set forth in claim 1 in which said porous suppcrt comprises alumina.
Claim 15
Dependent Claim
15 words
The process as set forth in claim 1 in which said porous support comprises silica.
Claim 16
Dependent Claim
15 words
The process as set forth in claim 1 in which said porous support comprises aluminosilicate.
Claim 17
Dependent Claim
26 words
The process as set forth in claim 1 in which said olefinic hydrocarbon is propylene and said oligomer is a mixture of hexene, methylpentene and dimethylbutene.
Claim 18
Dependent Claim
26 words
The process as set forth in claim 1 in which said olefinic hydrocarbon is butylene and said oligomer is a mixture of octene, methylheptene and dimethylhexene.
References Cited (Backward Citations)
US2828347A
Cited
US3135725A
Cited
US3155642A
Cited
US3496247A
Cited
US3483268A
Cited
US3465056A
Cited
US3463831A
Cited
US3457321A
Cited
US3655810A
Cited
US3505425A
Cited
US3484425A
Cited
US3483269A
Cited
US3592869A
Cited
US3530200A
Cited
US3663451A
Cited
US3560459A
Cited
US3790551A
Cited
JPS5024282A
Cited
US4032590A
Cited
US4028272A
Cited
US4220243A
Cited
US4610580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |