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US4503282A
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Process to convert linear alkenes selectively using high concentrations of AMS-1B crystalline borosilicate catalyst
Assignee: BP Corp North America Inc
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Filing: 1982-09-24
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Granted: 1985-03-05
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Expires: 2002-09-24
Abstract
Abstract A process to convert a substantially linear alkene, such as n-butene, to isomerized products comprises contacting such alkene under conversion conditions comprising a temperature of above 300° C. to about 650° C. and an alkene reactant partial pressure of less than about 0.4 atmospheres with an AMS-1B borosilicate catalyst composition containing at least 50 wt. % hydrogen from AMS-1B incorporated in an inert binder.
Inventors
- 👤 David L. Sikkenga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:24
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/27; C07C5/2767; C07C5/277; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/12; C07C2529/00; C07C2529/86
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
70 words
A process to convert a substantially linear alkene to isomerized alkenes with low formation of light and heavy by-products comprising contacting such alkene under conversion conditions comprising a temperature of above 300° C. to about 650° C. and an alkene reactant partial pressure of less than about 0.4 atmospheres with an AMS-1B crystalline borosilicate-based catalyst composition containing at least 50 wt. % hydrogen form AMS-1B incorporated in an inert binder.
Claim 2
Dependent Claim
70 words
A process to convert a substantially linear alkene to isomerized alkenes with low formation of light and heavy by-products comprising contacting such alkene under conversion conditions comprising a temperature of above 300° C. to about 650° C. and an alkene reactant partial pressure of less than about 0.4 atmospheres with an AMS-1B crystalline borosilicate-based catalyst composition containing at least 50 wt. % hydrogen form AMS-1B incorporated in an inert binder.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein the substantially linear alkene comprises a normal alkene having four to about ten carbon atoms.
Claim 4
Dependent Claim
12 words
The process of claim 2 wherein the alkene is a normal butene.
Claim 5
Dependent Claim
18 words
The process of claim 1 wherein the catalyst composition contains at least 75 wt. % AMS-1B crystalline borosilicate.
Claim 6
Dependent Claim
17 words
The process of claim 3 wherein the normal butene is 1-butene, trans-2-butene, cis-2-butene or a mixture thereof.
Claim 7
Dependent Claim
11 words
The process of claim 3 wherein the linear alkene is 1-butene.
Claim 8
Dependent Claim
23 words
The process of claim 3 wherein the normal butene comprises from about 10 to 100 wt. % of a feedstream contacting the catalyst.
Claim 9
Dependent Claim
16 words
The process of claim 7 wherein the feedstream contains a mixture of normal butene and butanes.
Claim 10
Dependent Claim
13 words
The process of claim 4 wherein the substantially linear alkene is normal butene.
Claim 11
Dependent Claim
21 words
The process of claim 9 wherein the normal butene comprises 10 to 100 wt. % of a feedstream contacting the catalyst.
Claim 12
Dependent Claim
16 words
The process of claim 10 wherein the feedstream contains a mixture of normal butenes and butanes.
Claim 13
Dependent Claim
19 words
The process of claims 9, 10 or 11 wherein the butene is 1-butene, trans-2-butene, cis-2-butene or a mixture thereof.
Claim 14
Dependent Claim
13 words
The process of claims 9, 10 or 11 wherein the butene is 1-butene.
Claim 15
Dependent Claim
19 words
The process of claim 1 wherein the AMS-1B crystalline borosilicate composition is incorporated within an alumina or silica-alumina matrix.
Claim 16
Dependent Claim
23 words
The process of claim 13 wherein the AMS-1B crystalline borosilicate content in the matrix ranges from about 75 to about 95 wt. %.
Claim 17
Dependent Claim
23 words
The process of claim 14 wherein the AMS-1B crystalline borosilicate content in the matrix ranges from about 75 to about 95 wt. %.
Claim 18
Dependent Claim
63 words
The process of claim 1 wherein the conversion conditions are a temperature of about 300° to about 650° C., a total pressure of about 0.1 to about 100 atmospheres, a hydrogen/hydrocarbon molar ratio of 0 to about 30, a weight hourly space velocity of about 0.1 to about 40 hr -1 and a alkene reactant partial pressure of about 0.01 to 0.4 atmospheres.
Claim 19
Dependent Claim
64 words
The process of claim 17 wherein normal butenes are converted at about 400° to about 600° C. at a total pressure of about 0.2 to about 50 atmospheres with a hydrogen/butene molar ratio of 0 to about 25 at a weight hourly space velocity of about 0.3 to about 25 hr -1 and a butene partial pressure of about 0.02 to about 0.2 atmospheres.
Claim 20
Dependent Claim
64 words
The process of claim 18 wherein n-butene is converted at about 500° to about 600° C. at a total pressure of about 0.3 to about 1.5 atmospheres with a hydrogen/butene molar ratio of about 0.5 to about 20 and a weight hourly space velocity of about 0.5 to about 6 hr -1 and a butene partial pressure of about 0.03 to about 0.15 atmospheres.
Claim 21
Dependent Claim
24 words
The process of claim 17, 18 or 19 wherein normal butenes comprise about 10 to 100 wt. % of a feedstream contacting the catalyst.
Claim 22
Dependent Claim
24 words
The process of claim 17, 18 or 19 wherein normal butenes comprise about 50 to 100 wt. % of a feedstream contacting the catalyst.
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) | 1988-03-04 | 1988-09-03 | 1989-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-04 | 1992-09-03 | 1993-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-04 | 1996-09-03 | 1997-03-05 | $7700.00 | Window Closed / Lapsed |