US3084109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of monocarboxylic acids
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-03-16
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Granted: 1963-04-02
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Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Ure George Reid
- 👤 Benson Richard William Harold
- 👤 Barrass Ernest Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:10
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42; C07C51/43; C07C51/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR RECOVERY OF A MONOCARBOXYLIC ACID FROM A CORRESIVE MIXTURE CONTAINING THE SAME IN THE PRESENCE OF BROMIDE ION WHICH CONSISTS OF (1) ADDING TO SAID MIXTURE A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, HYDROXIDES, CARBONATES, AND SALTS OF WEAK ORGANIC ACIDS IN A STOICHIOMETRIC AMOUNT IN EXCESS OF BROMINE PRESENT IN THE MIXTURE, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, CALCIUM, BARIUM, NICKEL, ZINC, SILVER, LEAD, IRON, ALUMINUM AND COBALT, AND (2) THEREAFTER DISTILLING SAID MONOCARBOXYLIC ACID UNCHANGED FROM THE THUS-TREATED MIXTURE.
Claim 2
Dependent Claim
92 words
A PROCESS FOR RECOVERY OF A MONOCARBOXYLIC ACID FROM A CORRESIVE MIXTURE CONTAINING THE SAME IN THE PRESENCE OF BROMIDE ION WHICH CONSISTS OF (1) ADDING TO SAID MIXTURE A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, HYDROXIDES, CARBONATES, AND SALTS OF WEAK ORGANIC ACIDS IN A STOICHIOMETRIC AMOUNT IN EXCESS OF BROMINE PRESENT IN THE MIXTURE, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, CALCIUM, BARIUM, NICKEL, ZINC, SILVER, LEAD, IRON, ALUMINUM AND COBALT, AND (2) THEREAFTER DISTILLING SAID MONOCARBOXYLIC ACID UNCHANGED FROM THE THUS-TREATED MIXTURE.
References Cited (Backward Citations)
US2463077A
Cited
US2600166A
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GB692145A
Cited
US2710879A
Cited
US2716139A
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US2858334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |