US3083079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removal of mercuric ions from electrolytic solutions
Assignee: Dow Chemical Co
•
Filing: 1958-12-24
•
Granted: 1963-03-26
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Russel C Calkins
- 👤 Richard A Mock
- 👤 Leo R Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:08
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/14; C01D3/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE PROCESS OF REMOVING MERCURIC IONS FROM BRINES CONTAINING HALIDE IONS AND CALCIUM IONS WHICH COMPRISES CONTACTING SAID SOLUTION, AT A PH OF AT LEAST 9.5, WITH AN INSOLUBLE POLYMER PREPARED FROM AT LEAST ONE MONOMER OF THE GROUP CONSISTING OF (A) VINYLPHENYL ALIPHATIC PRIMARY AND SECONDARY AMINOMONOCARBOXYLIC ACID MIXTURES OF AT LEAST ONE SUCH AMINOMONOCARBOXYLIC ACID AND A MINOR PROPORTION OF DIVINYLBENZENE, AND THEREAFTER RECOVERING THE MERCURY FROM THE RESIN BY ELUTION WITH A CHLORIDE SOLUTION AT A PH OF NOT MORE THAN 7.
Claim 2
Dependent Claim
85 words
THE PROCESS OF REMOVING MERCURIC IONS FROM BRINES CONTAINING HALIDE IONS AND CALCIUM IONS WHICH COMPRISES CONTACTING SAID SOLUTION, AT A PH OF AT LEAST 9.5, WITH AN INSOLUBLE POLYMER PREPARED FROM AT LEAST ONE MONOMER OF THE GROUP CONSISTING OF (A) VINYLPHENYL ALIPHATIC PRIMARY AND SECONDARY AMINOMONOCARBOXYLIC ACID MIXTURES OF AT LEAST ONE SUCH AMINOMONOCARBOXYLIC ACID AND A MINOR PROPORTION OF DIVINYLBENZENE, AND THEREAFTER RECOVERING THE MERCURY FROM THE RESIN BY ELUTION WITH A CHLORIDE SOLUTION AT A PH OF NOT MORE THAN 7.
References Cited (Backward Citations)
US2840603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |