US3692646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical chlorination of hydrocarbons in an hci-acetic acid solution
Assignee: Texaco Inc
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Filing: 1971-09-02
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Granted: 1972-09-19
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Expires: 1991-09-02
Abstract
Abstract A PROCESS OF ELECTROCHEMICALLY HALOGENATING HYDROCARBONS IN AN AQUEOUS HYDROHALIC ACID ELECTROLYTE COMPRISING PASSING CURRENT FROM A CATHODE TO AN ANODE IMMERSED IN AN ELECTROLYTE COMPRISING A MIXTURE OF AQUEOUS HYDROHALIC ACID AND 10-90 VOLUME PERCENT OF AN ALIPHATIC ACID OF 2-4 CARBON ATOMS. TYPICALLY, THE PROCESS INVOLVES CHLORINATING AN ALIPHATIC, CYCLOALIPHATIC OR AROMATIC HYDROCARBON IN AN ELECTROLYTIC CELL EMPLOYING GRAPHITE ELECTRODES USING A MIXTURE OF HYDROCHLORIC ACID AND ACETIC ACID. USING THE MIXED ACID ELECTROLYTE PREVENTS RAPID DETERIORATION OF THE ANODES AND INCREASES THE SOLUBILITY OF THE HYDROCARBON STARTING MATERIAL IN THE ELECTROLYTE.
Inventors
- 👤 William B Mather Jr
- 👤 Edwin R Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:59
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/27; C25B3/01; C25B3/11
Claims Analysis
Total Claims: 0
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |