Patent US3723561A successfully refreshed from Google Patents.
US3723561A
Expired / Lapsed
US
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The selective separation of butene-1 from a c{11 {11 hydrocarbon mixture employing zeolites x and y
Assignee: Universal Oil Products Co
•
Filing: 1971-12-01
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Granted: 1973-03-27
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Expires: 1991-12-01
Abstract
Abstract A process for the separation of butene-1 from other C4 monoolefins. A feed stream containing butene-1 along with another C4 mono-olefin is contacted with a crystalline aluminosilicate adsorbent selected from the X or Y zeolites containing barium or potassium cations at conditions to effect the selective adsorption of butene-1. The butene-1 adsorbed by the adsorbent is thereafter recovered as a purified product.
Inventors
- 👤 J Priegnitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:00
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
20 words
Claim 1 further characterized in that said feed contains mono-olefins selected from the group consisting of cis-butene-2, trans-butene-2, and isobutylene.
Claim 2
Dependent Claim
23 words
Claim 1 further characterized in that said adsorption conditions include a temperature within the range of from about ambient to about 300* F.
Claim 3
Dependent Claim
13 words
Claim 1 further characterized in that said adsorption conditions include the liquid phase.
Claim 4
Dependent Claim
13 words
Claim 1 further characterized in that said crystalline aluminosilicate is an X zeolite.
Claim 5
Dependent Claim
13 words
Claim 1 further characterized in that said crystalline aluminosilicate is a Y zeolite.
Claim 6
Dependent Claim
75 words
A process for separating butene-1 from a feed mixture containing isobutylene, which process comprises the steps of: i. contacting said feed mixture with a crystalline aluminosilicate adsorbent, selected from the group consisting of X and Y zeolites containing cations selected from the group consisting of potassium and barium at cationic sites within said zeolite, at adsorption conditions to effect the selective adsorption of butene-1 by said adsorbent; and ii. recovering said butene-1 from said adsorbent.
Claim 7
Dependent Claim
13 words
Claim 7 further characterized in that said crystalline aluminosilicate is an X zeolite.
Claim 8
Dependent Claim
13 words
Claim 7 further characterized in that said crystalline aluminosilicate is a Y zeolite.
Claim 9
Dependent Claim
23 words
Claim 7 further characterized in that said adsorption conditions include a temperature within the range of from about ambient to about 300* F.
Claim 10
Dependent Claim
10 words
Claim 7 further characterized in that said cation is barium.
Claim 11
Dependent Claim
10 words
Claim 7 further characterized in that said cation is potassium.
Claim 12
Dependent Claim
15 words
Claim 7 further characterized in that said crystalline aluminosilicate is a Y zeolite containing barium.
Claim 13
Dependent Claim
15 words
Claim 7 further characterized in that said crystalline aluminosilicate is a Y zeolite containing potassium.
Claim 14
Dependent Claim
15 words
Claim 7 further characterized in that said crystalline aluminosilicate is an X zeolite containing barium.
Claim 15
Dependent Claim
15 words
Claim 7 further characterized in that said crystalline aluminosilicate is an X zeolite containing potassium.
Claim 16
Dependent Claim
75 words
A process for separating butene-1 from a feed mixture containing butene-2 which process comprises the steps of: i. contacting said feed mixture with a crystalline aluminosilicate adsorbent, selected from the group consisting of X and Y zeolites containing cations selected from the group consisting of potassium and barium at cationic sites within said zeolite, at adsorption conditions to effect the selective adsorption of butene-1 by said adsorbent; and ii. recovering said butene-1 from said adsorbent.
Claim 17
Dependent Claim
13 words
Claim 17 further characterized in that said crystalline aluminosilicate is an X zeolite.
Claim 18
Dependent Claim
10 words
Claim 18 further characterized in that said cations are barium.
Claim 19
Dependent Claim
10 words
Claim 18 further characterized in that said cations are potassium.
Claim 20
Dependent Claim
13 words
Claim 17 further characterized in that said crystalline aluminosilicate is a Y zeolite.
Claim 21
Dependent Claim
10 words
Claim 21 further characterized in that said cations are barium.
Claim 22
Dependent Claim
10 words
Claim 21 further characterized in that said cations are potassium.
Claim 23
Dependent Claim
23 words
Claim 17 further characterized in that said adsorption conditions include a temperature within the range of from about ambient to about 300* F.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |