US4473643A
Expired / Lapsed
US
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Microbiological oxidation process
Assignee: Imperial Chemical Industries Ltd
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Filing: 1982-04-01
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Granted: 1984-09-25
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Expires: 2002-04-01
Abstract
Abstract A process of oxidizing a hydrocarbon which is an alkane or alkene or substituted alkane or alkene by contacting it with a culture of a bacterium as deposited under accession number NCIB 11613 or a mutant or derivative thereof which is capable of utilizing an alkane having from 6 to 28 carbon atoms as a source of carbon and energy or an enzyme extract thereof, and separating an oxidized derivative of the hydrocarbon.
Inventors
- 👤 Irving J. Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:03
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/02; C12P17/00; C12P17/02; C12P7/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
73 words
A process of oxidising a hydrocarbon which is an alkane or alkene or substituted alkane or alkene by contacting it with a culture of a bacterium as deposited under accession number NCIB 11613 or a mutant or derivative thereof which is capable of utilising an alkane having from 6 to 28 carbon atoms as a source of carbon and energy or an enzyme extract thereof, and separating an oxidised derivative of the hydrocarbon.
Claim 2
Dependent Claim
73 words
A process of oxidising a hydrocarbon which is an alkane or alkene or substituted alkane or alkene by contacting it with a culture of a bacterium as deposited under accession number NCIB 11613 or a mutant or derivative thereof which is capable of utilising an alkane having from 6 to 28 carbon atoms as a source of carbon and energy or an enzyme extract thereof, and separating an oxidised derivative of the hydrocarbon.
Claim 3
Dependent Claim
23 words
A process as claimed in claim 1 in which an alkane having 6 to 28 carbon atoms is oxidised to the corresponding alkanol.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 2 in which the alkane is a normal alkane having 8 to 14 carbon atoms.
Claim 5
Dependent Claim
18 words
A process as claimed in claim 1 in which a cyclic alkane is oxidised to the corresponding alkanol.
Claim 6
Dependent Claim
41 words
A process as claimed in claim 1 in which bacteria are transferred from the medium used for their growth into a medium which lacks a nitrogen source and the compound to be oxidised is contacted with the bacteria in this medium.
Claim 7
Dependent Claim
35 words
A process as claimed in claim 5 in which the compound to be oxidised is contacted with the bacteria at a temperature in the range 25° to 37° C. and in the presence of oxygen.
Claim 8
Dependent Claim
16 words
A process as claimed in claim 1 in which an alkene is oxidised to an epoxide.
References Cited (Backward Citations)
JPS5565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |