Patent US4098839A successfully refreshed from Google Patents.
US4098839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oligomerization of unsaturated hydrocarbons with a molybdenum catalyst
Assignee: Wintershall Dea International AG
•
Filing: 1975-10-28
•
Granted: 1978-07-04
•
Expires: 1995-10-28
Abstract
Abstract A process for oligomerizing olefins having 2 to 5 carbon atoms in the molecule employing a novel sulfur containing molybdenum supported catalyst composed of from about 5.0 to 11.0 weight percent molybdenum, 3.0 to 7.0 weight percent sulfur and the remainder support. The catalyst may have present additional members such as platinum, palladium, rhodium, ruthenium, cobalt, nickel, rhenium and tungsten.
Inventors
- 👤 Elmar Wilms
- 👤 Georg Michalczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:28
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J23/16; B01J23/24; B01J23/28; B01J27/00; B01J27/02; B01J27/04; B01J27/047; B01J27/051; B01J27/0515; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/16; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/30; C07C2523/32; C07C2523/36; C07C2523/38; C07C2523/40; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/755; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/047; C07C2527/051
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
a process for oligomerizing an olefin having 2 to 5 carbon atoms which comprises contacting said olefin in the presence of a sulfur containing molybdenum supported catalyst comprising from about 5.0 to 11.0 weight percent molybdenum, 3.0 to 7.0 weight percent sulfur and the remainder support, said catalyst prepared by heating a composite comprising a sulfur containing molybdenum compound on a support at a temperature of about 300° to 700° C. in an oxidizing atmosphere.
Claim 2
Dependent Claim
75 words
a process for oligomerizing an olefin having 2 to 5 carbon atoms which comprises contacting said olefin in the presence of a sulfur containing molybdenum supported catalyst comprising from about 5.0 to 11.0 weight percent molybdenum, 3.0 to 7.0 weight percent sulfur and the remainder support, said catalyst prepared by heating a composite comprising a sulfur containing molybdenum compound on a support at a temperature of about 300° to 700° C. in an oxidizing atmosphere.
Claim 3
Dependent Claim
32 words
A process according to claim 1 wherein said process is conducted at a temperature of about 40° C. to 180° C. and at a pressure of about 5 atmospheres to 1500 p.s.i.g.
Claim 4
Dependent Claim
32 words
A process according to claim 1 wherein said process is conducted at a temperature of from about 80° to 180° C. and at a pressure of from about 200 to 1500 p.s.i.g.
Claim 5
Dependent Claim
17 words
A process according to claim 1 wherein said olefin is ethylene, propylene, butene, pentene or mixtures thereof.
Claim 6
Dependent Claim
14 words
A process according to claim 1 wherein said olefin is a mixture of butenes.
Claim 7
Dependent Claim
11 words
A process according to claim 1 wherein said olefin is propylene.
Claim 8
Dependent Claim
23 words
A process according to claim 1 wherein said catalyst additionally contains an oxide of a platinum group metal, cobalt, nickel, rhenium or tungsten.
Claim 9
Dependent Claim
20 words
A process according to claim 1 wherein cobalt oxide is associated with said catalyst and where said support is alumina.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |