US3758626A
Expired / Lapsed
US
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Dimerization of olefins with supported palladium catalyst
Assignee: Texas Petrochemicals Corp
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Filing: 1970-07-29
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Granted: 1973-09-11
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Expires: 1990-07-29
Abstract
Abstract Palladium salts supported on material such as alumina or silica alumina provide effective catalysts for the dimerization or codimerization of Alpha -olefins such as ethylene or propylene in a heterogenous reaction system. The products are easily separated from the catalyst which has a high degree of activity for long periods of time.
Inventors
- 👤 R Arganbright
- 👤 E Miklas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/22; B; B01; B01J; B01J27/00; B01J27/06; B01J27/14; B01J27/185; B01J27/1856; B01J27/24; C07C2/16; C07C2/18; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/10; C07C2521/12; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/06; C07C2527/128; C07C2527/13; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/24; C07C2527/25
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
33 words
The process according to claim 1 wherein the inorganic acid salt of palladium is selected from the group consisting of palladium chloride, palladium bromide, palladium iodide, palladium nitrate, palladium sulfate and mixtures thereof.
Claim 2
Dependent Claim
19 words
The process according to claim 2 wherein the inorganic acid salt of palladium is palladium chloride or palladium nitrate.
Claim 3
Dependent Claim
15 words
The process according to claim 1 wherein the temperature is between 25* and 60* C.
Claim 4
Dependent Claim
15 words
The process according to claim 1 wherein said Alpha -monoolefins are in the gaseous phase.
Claim 5
Dependent Claim
16 words
The process according to claim 5 wherein the inorganic acid salt of palladium is palladium chloride.
Claim 6
Dependent Claim
17 words
The process according to claim 6 wherein the support is silica-alumina and the Alpha -monoolefin comprises ethylene.
Claim 7
Dependent Claim
14 words
The process according to claim 7 wherein the Alpha -monoolefin comprises ethylene and propylene.
Claim 8
Dependent Claim
17 words
The process according to claim 6 wherein the support is alumina and the Alpha -monoolefin comprises ethylene.
Claim 9
Dependent Claim
16 words
The process according to claim 1 wherein the inorganic acid salt of palladium is palladium nitrate.
Claim 10
Dependent Claim
18 words
The process according to claim 6 wherein the support is aluminum phosphate and the Alpha -monoolefin comprises ethylene.
Claim 11
Dependent Claim
18 words
The process according to claim 1 wherein the support is aluminum phosphate and the Alpha -monoolefin is propylene.
Claim 12
Dependent Claim
17 words
The process according to claim 1 wherein an inert diluent is present with the Alpha -monoolefin reactant.
Claim 13
Dependent Claim
12 words
The process according to claim 1 wherein said Alpha -monoolefin is ethylene.
Claim 14
Dependent Claim
12 words
The process according to claim 1 wherein said Alpha -monoolefin is propylene.
Claim 15
Dependent Claim
17 words
The process according to claim 1 wherein said Alpha -monoolefin is a mixture of ethylene and propylene.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |