US3987074A
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Process for the manufacture of vanadyl alcoholates
Assignee: Dynamit Nobel AG
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Filing: 1974-08-21
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Granted: 1976-10-19
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Expires: 1994-08-21
Abstract
Abstract A process for the preparation of a vanadyl alcoholate which comprises contacting vanadium pentoxide with an alcohol in the presence of an orthoester of the formula R' . C(OR").sub. 3 wherein: R' is hydrogen, a straight-chained alkyl group of 1 to 5 carbon atoms or a branched chain alkyl group of 1 to 5 carbon atoms; and R" is a straight-chained alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 1 to 12 carbon atoms or phenyl.
Inventors
- 👤 Ranier Haase
- 👤 Arnold Lenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:26
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/005; C07C; C07C29/00; C07C29/68; C07C29/70; C07C31/00; C07C31/28; C08; C08F; C08F210/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A process for the preparation of a vanadyl alcoholate which comprises contacting vanadium pentoxide with a cyclic or acyclic mono or bifunctional alcohol of 1 to 12 carbon atoms in the presence of an orthoester of the formula R' . C(OR").sub.3 wherein R' is hydrogen, a straight-chained alkyl group of 1 to 5 carbon atoms or a branched-chain alkyl group of 1 to 5 carbon atoms; and R" is a straight-chained alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 1 to 12 carbon atoms or phenyl.
Claim 2
Dependent Claim
91 words
A process for the preparation of a vanadyl alcoholate which comprises contacting vanadium pentoxide with a cyclic or acyclic mono or bifunctional alcohol of 1 to 12 carbon atoms in the presence of an orthoester of the formula R' . C(OR").sub.3 wherein R' is hydrogen, a straight-chained alkyl group of 1 to 5 carbon atoms or a branched-chain alkyl group of 1 to 5 carbon atoms; and R" is a straight-chained alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 1 to 12 carbon atoms or phenyl.
Claim 3
Dependent Claim
19 words
A process according to claim 1 wherein the process is carried out in the presence of an inert solvent.
Claim 4
Dependent Claim
20 words
A process according to claim 1 wherein the process is carried out at the boiling point of the reaction mixture.
Claim 5
Dependent Claim
57 words
A process according to claim 1 wherein said orthoester is trimethyl orthoformiate, triethyl orthoformiate, triphenyl orthoformiate, triamyl orthoformiate, triisoamyl orthoformiate, tri-tert.-amyl orthoformiate, tripropyl orthoformiate, trimethyl orthoacetate, triethyl orthoacetate, triphenyl orthoacetate, triamyl orthoacetate, tri-tert.-amyl orthoacetate, triisoamyl orthoacetate, tripropyl orthoacetate, trimethyl orthopropionate, triethyl orthoproprionate, triphenyl orthopropionate, triisoamyl orthoproprionate, tripropyl orthoproprionate, trimethyl orthobutyrate, triethyl orthobutyrate, triphenyl orthobutyrate or tripropyl orthopropionate.
Claim 6
Dependent Claim
17 words
A process according to claim 1 wherein said alcohol is a C 1 - C 12 alkanol.
Claim 7
Dependent Claim
31 words
A process according to claim 1 wherein said alcohol is methanol, ethanol, propanol, isopropanol, n-butanol, sec.-butanol, tert.-butanol, amyl alcohol, an isomer of amyl alcohol, cyclohexanol, lauryl alcohol, phenol or ethylene glycol.
Claim 8
Dependent Claim
29 words
A process according to claim 1 wherein the orthoester is introduced progressively to the reaction mixture as water is produced by reaction of said vanadyl pentoxide with said alcohol.
Claim 9
Dependent Claim
18 words
A process according to claim 1 wherein the process is carried out for from 8 to 16 hours.
Claim 10
Dependent Claim
15 words
A process according to claim 2 wherein said solvent is carbon tetrachloride or a hydrocarbon.
Claim 11
Dependent Claim
19 words
A process according to claim 9 wherein said solvent is a hydrocarbon and said hydrocarbon is benzene or toluene.
Claim 12
Dependent Claim
43 words
A process according to claim 1 wherein said orthoester is present in a molar amount such that the molar ratio of orthoester to water theoretically produced by reaction of the vanadyl pentoxide with alcohol is from 1 : 2 to 1 : 0,5.
Claim 13
Dependent Claim
16 words
A vanadyl alcoholate of the formula O = V(OCH 2 --CH 2 O 3 --V= O.
Claim 14
Dependent Claim
16 words
A vanadyl alcoholate of the formula O = V(OCH 2 --CH 2 O 3 --V= O.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |