US4445908A
Expired / Lapsed
US
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Extracting alcohols from aqueous solutions
Assignee: ENERGY United States, Department of
•
Filing: 1981-12-02
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Granted: 1984-05-01
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Expires: 2001-12-02
Abstract
Abstract Hydrocarbon and surfactants are contacted with a solution of alcohol and water to extract the alcohol into the hydrocarbon-surfactant mixture.
Inventors
- 👤 Alicia L. Compere
- 👤 John M. Googin
- 👤 William L. Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C07; C07C; C07C29/00; C07C29/74; C07C29/76; C07C29/86
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A method for obtaining a mixture of an alcohol and a petroleum type hydrocarbon, comprising: mixing a fermentation solution containing water and one or more alcohols selected from the group consisting of ethanol, isopropyl alcohol and n-butyl alcohol with a mixture of a petroleum type of hydrocarbon and a compound containing a mixture of multiple polyoxyalkylene units for a time sufficient to extract said alcohol from said fermentation solution into said mixture; and separating excess water of said fermentation solution from said mixture containing the extracted alcohol.
Claim 2
Independent Claim
87 words
A method for obtaining a mixture of an alcohol and a petroleum type hydrocarbon, comprising: mixing a fermentation solution containing water and one or more alcohols selected from the group consisting of ethanol, isopropyl alcohol and n-butyl alcohol with a mixture of a petroleum type of hydrocarbon and a compound containing a mixture of multiple polyoxyalkylene units for a time sufficient to extract said alcohol from said fermentation solution into said mixture; and separating excess water of said fermentation solution from said mixture containing the extracted alcohol.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein the fermentation solution contains butanol.
Claim 4
Dependent Claim
20 words
The method of claim 1 wherein said compound is polyethylene glycol with an average molecular weight between 200 and 8,000.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein said compound is polypropylene glycol with an average molecular weight between 200 and 12,500.
Claim 6
Dependent Claim
41 words
The method of claim 1 wherein said compound is defined by the formula H(OC.sub.2 H.sub.4).sub.x --O--(C.sub.3 H.sub.6).sub.y --(C.sub.2 H.sub.4 O).sub.x H, wherein x is an average number from 2.3 to 16.9 and y is an average number from 31 to 69.
Claim 7
Dependent Claim
42 words
The method of claim 1 wherein said compound is defined by the formula H(OC.sub.3 H.sub.6).sub.y --O--(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y H, wherein x is an average number from 14.2 to 163.6 and y is an average number from 12.9 to 23.4.
Claim 8
Dependent Claim
30 words
The method of claim 1 wherein said compound is ##STR14## wherein x is an average number between 1 and 125 and y is an average number between 4 and 33.
Claim 9
Dependent Claim
30 words
The method of claim 1 wherein said compound is defined by the formula ##STR15## where x may vary from 1 to 30 and y may vary from 4 to 33.
Claim 10
Dependent Claim
74 words
The method of claim 1 wherein said compound is defined by the formula R.sub.1 --O--(C.sub.2 H.sub.4 O).sub.x H wherein x is a number from 4.5 to 16 and R 1 is selected from the group consisting of C 17 H 35 C═O and a tall oil acyl mixture having the following approximate composition: ______________________________________
Acid %
______________________________________
Oleic 24
Linoleic 19
Conjugated 4
Abietic 14
Neoabietic 7
Related Rosin Acids
26
Unknown 6
______________________________________
Claim 11
Dependent Claim
47 words
The method of claim 1 wherein said compound is ##STR16## where x has an average value between 2 and 10, R 1 is an alkane group having up to 18 C atoms and R 2 is H or an alkane having up to about 18 C atoms.
Claim 12
Dependent Claim
28 words
The method of claim 1 wherein said compound is defined by the formula ##STR17## wherein the sum of x and y is a number from 3 to 18.
Claim 13
Dependent Claim
56 words
The method of claim 1 wherein said compound is ##STR18## wherein R is a tall oil acid acyl mixture having the following approximate composition ______________________________________
Acid %
______________________________________
Oleic 24
Linoleic 19
Conjugated 4
Abietic 14
Neoabietic 7
Related Rosin Acids
26
Unknown 6
______________________________________ and x is a variable average number between 1 and 25.
Claim 14
Dependent Claim
40 words
The method of claim 1 wherein said compound is ##STR19## where x has a value between 2 and 100, R 1 and R 2 may be H, an alkane group or CH 3 CO-- through C 17 H 35 CO--.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |