Patent US4014912A successfully refreshed from Google Patents.
US4014912A
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Method for preparing organic vanadates
Assignee: Stauffer Chemical Co
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Filing: 1975-10-16
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Granted: 1977-03-29
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Expires: 1995-10-16
Abstract
Abstract An improved method for preparing organic vanadates by reacting vanadium oxytrichloride with an alcohol in the presence of ammonia and a hydrocarbon solvent and thereafter adding dimethyl sulfoxide to form two phases, one phase containing the organic vanadates and the other phase being an ammonium chloride-dimethyl sulfoxide suspension.
Inventors
- 👤 Ronald L. Muntz
- 👤 Robert W. Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:46
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/28; C07C29/00; C07C29/68; C07C29/70; C07F; C07F9/00; C07F9/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
84 words
A process for preparing organic vanadates which comprises reacting vanadium oxytrichloride with a monohydric alcohol having from 2 to 10 carbon atoms in a molar ratio of vanadium oxytrichloride to alcohol of from 1:1 to 1:5 in the presence of ammonia at a temperature of from about 0° up to about 100° C under substantially anhydrous conditions and thereafter adding sufficient dimethyl sulfoxide to the reaction mixture to form a vanadate phase and a dimethyl sulfoxide-ammonium chloride phase and thereafter recovering the organic vanadate.
Claim 2
Dependent Claim
84 words
A process for preparing organic vanadates which comprises reacting vanadium oxytrichloride with a monohydric alcohol having from 2 to 10 carbon atoms in a molar ratio of vanadium oxytrichloride to alcohol of from 1:1 to 1:5 in the presence of ammonia at a temperature of from about 0° up to about 100° C under substantially anhydrous conditions and thereafter adding sufficient dimethyl sulfoxide to the reaction mixture to form a vanadate phase and a dimethyl sulfoxide-ammonium chloride phase and thereafter recovering the organic vanadate.
Claim 3
Dependent Claim
25 words
The process of claim 1 wherein an inert gas is passed through the reaction mixture to remove hydrogen chloride prior to the addition of ammonia.
Claim 4
Dependent Claim
22 words
The process of claim 1 wherein the vanadium oxytrichloride and alcohol are reacted in the presence of ammonia and a hydrocarbon solvent.
Claim 5
Dependent Claim
13 words
The process of claim 3 wherein the reaction mixture also contains dimethyl sulfoxide.
Claim 6
Dependent Claim
20 words
The process of claim 1 wherein the monohydric alcohol contains an alkyl radical having from 2 to 10 carbon atoms.
Claim 7
Dependent Claim
11 words
The process of claim 1 wherein the alcohol is n-butyl alcohol.
Claim 8
Dependent Claim
21 words
The process of claim 1 wherein the vanadium oxytrichloride and the monohydric alcohol are reacted at a temperature below 70° C.
Claim 9
Dependent Claim
11 words
The process of claim 1 wherein the alcohol is ethyl alcohol.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |