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US3689589A
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Disproportionation-dimerization of ethylene
Assignee: Phillips Petroleum Co
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Filing: 1969-08-11
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Granted: 1972-09-05
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Expires: 1989-08-11
Abstract
Abstract Ethylene is upgraded to hydrocarbons of higher molecular weight by contact with a catalyst comprising an olefin dimerization component and an olefin disproportionation component.
Inventors
- 👤 Robert E Reusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:01
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/10; C07C2/18; C07C6/00; C07C6/02; C07C6/04; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/12; C07C2523/16; C07C2523/24; C07C2523/28; C07C2523/30; C07C2523/32; C07C2523/36; C07C2523/70; C07C2523/74; C07C2523/755; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/186; C07C2527/188; C07C2527/19; C07C2527/192; C07C2531/00; C07C2531/16; C07C2531/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
46 words
A method according to claim 1 wherein (B) comprises silica promoted by an oxide of tungsten, alumina promoted by an oxide of molybdenum, aluminum phosphate promoted by an oxide of tungsten, alumina promoted by an oxide of rhenium or alumina promoted by a hexacarbonyl of molybdenum.
Claim 2
Dependent Claim
20 words
A method according to claim 1 wherein the conversion of ethylene is carried out at a pressure of 0-1,500 psig.
Claim 3
Dependent Claim
30 words
A method according to claim 1 wherein the catalyst is contacted with ethylene in the vapor phase at a temperature of about 700*F and a pressure of about 400 psig.
Claim 4
Dependent Claim
16 words
A method according to claim 1 wherein the catalyst system comprises (B) copromoted with nickel oxide.
Claim 5
Dependent Claim
22 words
A method according to claim 5 wherein (B) comprises silica, silica-alumina, or alumina promoted by molybdenum oxide, tungsten oxide, or rhenium oxide.
Claim 6
Dependent Claim
19 words
A method according to claim 5 wherein the catalyst system is silica copromoted by nickel oxide and tungsten oxide.
Claim 7
Dependent Claim
19 words
A method according to claim 1 wherein the catalyst system comprises a physical mixture supported nickel oxide and (B).
Claim 8
Dependent Claim
32 words
A method according to claim 8 wherein the proportion of (B) to supported nickel oxide in the catalyst mixture is in the range of about 0.1 to about 10 parts by weight.
Claim 9
Dependent Claim
32 words
A method according to claim 8 wherein the catalyst system comprises a physical mixture of tungsten oxide supported on silica and nickel oxide supported on silica-alumina, and nickel oxide supported on silica.
Claim 10
Dependent Claim
17 words
A method according to claim 8 wherein the nickel oxide is supported on silica, alumina, or silica-alumina.
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |