US2969275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of boron values
Assignee: American Potash and Chemical Corp
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Filing: 1958-11-14
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Granted: 1961-01-24
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Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Garrett Donald Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:34
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06; C01B35/08; C01B35/10; C01B35/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR RECOVERY OF BORON VALUES FROM AN ALKALINE AQUEOUS SOLUTION CONTAINING SUCH BORON VALUES IN THE FORM OF AT LEAST ONE MATERIAL SELECTED FROM THE CLASS CONSISTING OF BORAX, SODIUM PENTABORATE, SODIUM METABORATE AND BORIC ACID COMPRISING: ASSING TO SAID ALKALINE SOLUTION AT LEAST ONE OPEN CHAIN ALIPHATIC POLYOL SELECTED FROM THE CLASS CONSISTING OF IDOLS AND TRIOLS HAVING 6 TO 16 CARBON ATOMS IN THE ALIPHATIC CHAIN, WHEREBY TO FORM A BORON-RICH SOLVENT LAYER AND A SEPERATE AQUEOUS LAYER, SEPARATING THE TWO LAYERS SO FORMED, AND ACIDIFYING SAID BORON-RICH SOLVENT LAYER WHEREBY TO CAUSE SAID BORON VALUES RO SEPARATE FROM SAID POYOL.
Claim 2
Dependent Claim
105 words
A PROCESS FOR RECOVERY OF BORON VALUES FROM AN ALKALINE AQUEOUS SOLUTION CONTAINING SUCH BORON VALUES IN THE FORM OF AT LEAST ONE MATERIAL SELECTED FROM THE CLASS CONSISTING OF BORAX, SODIUM PENTABORATE, SODIUM METABORATE AND BORIC ACID COMPRISING: ASSING TO SAID ALKALINE SOLUTION AT LEAST ONE OPEN CHAIN ALIPHATIC POLYOL SELECTED FROM THE CLASS CONSISTING OF IDOLS AND TRIOLS HAVING 6 TO 16 CARBON ATOMS IN THE ALIPHATIC CHAIN, WHEREBY TO FORM A BORON-RICH SOLVENT LAYER AND A SEPERATE AQUEOUS LAYER, SEPARATING THE TWO LAYERS SO FORMED, AND ACIDIFYING SAID BORON-RICH SOLVENT LAYER WHEREBY TO CAUSE SAID BORON VALUES RO SEPARATE FROM SAID POYOL.
References Cited (Backward Citations)
US2813838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |