US4436926A
Expired / Lapsed
US
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Alkane acetates produced by oxidative esterification of olefins over a catalyst containing a rare earth oxide
Assignee: Texaco Inc
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Filing: 1982-07-28
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Granted: 1984-03-13
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Expires: 2002-07-28
Abstract
Abstract A process for the production of alkane acetates from olefins in the presence of a catalyst containing a rare earth oxide, oxygen and a carboxylate ion source via oxidative esterification is described. The reaction is conducted at a temperature in the range of 100° to 250° C. and a pressure of 1 atmosphere or greater. Alkane diacetates and hydroxy acetates are produced which may be used as precursors to alkylene oxides, alkylene glycols and other useful compounds.
Inventors
- 👤 John R. Sanderson
- 👤 Terry L. Renken
- 👤 Lewis W. Watts, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:52
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C67/05
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
An improved process for the production of alkane hydroxy acetates and diacetates by reacting an olefin or a mixture of olefins with oxygen and a carboxylate ion source selected from the group consisting of acetic acid and acetic anhydride, wherein the improvement consists essentially of conducting the reaction in the presence of a rare earth oxide catalyst.
Claim 2
Dependent Claim
57 words
An improved process for the production of alkane hydroxy acetates and diacetates by reacting an olefin or a mixture of olefins with oxygen and a carboxylate ion source selected from the group consisting of acetic acid and acetic anhydride, wherein the improvement consists essentially of conducting the reaction in the presence of a rare earth oxide catalyst.
Claim 3
Dependent Claim
22 words
The process of claim 1 in which the reaction is conducted at a temperature in the range of 120° to 220° C.
Claim 4
Dependent Claim
15 words
The process of claim 1 in which the olefins have 3 to 16 carbon atoms.
Claim 5
Dependent Claim
11 words
The process of claim 1 in which the olefin is propylene.
Claim 6
Dependent Claim
25 words
The process of claim 1 in which the catalyst is selected from the group consisting of lanthanum oxide, ceric oxide, terbium oxide and yttrium oxide.
Claim 7
Dependent Claim
14 words
The process of claim 1 in which the carboxylate ion source is acetic acid.
Claim 8
Dependent Claim
77 words
An improved process for the production of alkane hydroxy acetates and diacetates by reacting an olefin or a mixture of olefins where each molecule has 3 to 16 carbon atoms, with oxygen and a carboxylate ion source selected from the group consisting of acetic acid and acetic anhydride at a temperature in the range of 120° to 220° C., wherein the improvement consists essentially of conducting the reaction in the presence of a rare earth oxide catalyst.
Claim 9
Dependent Claim
77 words
An improved process for the production of alkane hydroxy acetates and diacetates by reacting an olefin or a mixture of olefins where each molecule has 3 to 16 carbon atoms, with oxygen and a carboxylate ion source selected from the group consisting of acetic acid and acetic anhydride at a temperature in the range of 120° to 220° C., wherein the improvement consists essentially of conducting the reaction in the presence of a rare earth oxide catalyst.
Claim 10
Dependent Claim
25 words
The process of claim 7 in which the catalyst is selected from the group consisting of lanthanum oxide, ceric oxide, terbium oxide and yttrium oxide.
Claim 11
Dependent Claim
14 words
The process of claim 7 in which the carboxylate ion source is acetic acid.
Claim 12
Dependent Claim
14 words
The process of claim 7, 8 or 9 in which the olefin is propylene.
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) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |