US3616319A
Expired / Lapsed
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Electrolytic hydrodimerization of olefinic compounds
Assignee: Monsanto Co
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Filing: 1968-02-09
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Granted: 1971-10-26
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Expires: 1988-02-09
Abstract
Abstract In the hydrodimerization of olefinic nitriles, esters and/or carboxamides by passage of electric current through an aqueous olefinic nitrile-, ester- and/or carboxamide-containing catholyte separated from an aqueous acidic anolyte by a solid cationpermeable membrane, the rate of membrane deterioration is unexpectedly low and undesirable leakage of anolyte and catholyte constituents through the membrane is consequently inhibited by using as the cation-permeable membrane an electrically conductive polymeric matrix reinforced by at least two substantially parallel sheets of woven glass fabric embedded within the matrix.
Inventors
- 👤 Robert Johnson
- 👤 Roy E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:20
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2275; C25; C25B; C25B3/00; C25B3/01; C25B3/09; C25B3/20; C25B3/29; C25B3/295; C08J2309/00; C08J2309/02; C08J2325/00; C08J2325/02; C08J2325/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
36 words
A process as defined by claim 1, in which the matrix comprises a copolymer of a polyvinyl aromatic compound an a monovinyl aromatic compound having sulfonic groups chemically bonded to the aromatic nuclei of the copolymer.
Claim 2
Dependent Claim
20 words
A process as defined in claim 1, in which the olefinic nitrile, ester or carboxamide contains three to eight atoms.
Claim 3
Dependent Claim
13 words
A process as defined by claim 1, in which the catholyte contains acrylonitrile.
Claim 4
Dependent Claim
30 words
A process as defined by claim 1, in which the catholyte contains an electrolytic salt having a discharge potential more negative than that of salt olefinic nitrile, ester or carboxamide
Claim 5
Dependent Claim
23 words
A process ad defined in claim 5, in which the catholyte contains at least about 30 percent by weight of the electrolytic salt.
Claim 6
Dependent Claim
20 words
A process as defined by claim 1, in which the catholyte contains a quaternary ammonium or amine alkylsulfate or sulfonate.
Claim 7
Dependent Claim
16 words
A process as defined by claim 1, in which the anolyte contains a strong mineral acid.
Claim 8
Dependent Claim
14 words
A process as defined by claim 1, in which the anolyte contains sulfuric acid.
Claim 9
Dependent Claim
24 words
A process as defined by claim 1, in which the process is carried out at a temperature between about 40* and about 60* C.
Claim 10
Dependent Claim
64 words
A process for producing hydrodimers of olefinic compounds which comprises passing electric current through an aqueous olefinic nitrile-, ester- or carboxamide- containing catholyte separated from an aqueous acidic anolyte by an ion-exchange membrane comprising a solid electrically conductive polymeric cation-permeable matrix reinforced by two or three substantially parallel sheets of fabric embedded within said matrix, all of said sheets being of woven glass fabric
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |