US3058729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solution mining method
Assignee: PPG Industries Inc
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Filing: 1960-01-08
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Granted: 1962-10-16
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Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 James B Dahms
- 👤 Byron P Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/28; C; C01; C01D; C01D3/00; C01D3/04; C01D3/08; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A METHOD OF MINING POTASSIUM CHLORIDE FROM A SUBTERRANEAN DEPOSIT CONTAINING POTASSIUM CHLORIDE AND SODIUM CHLORIDE WHICH COMPRISES DISSOLVING WITH AN AQUEOUS MEDIUM THESE TWO SALTS FROM A TUBTERRANEAN CAVITY IN THE DEPOSIT, REMOVING SO FORMED SOLUTION FROM THE CAVITY, DEPOSITING SOLID POTASSIUM CHLORIDE FROM SOLUTION SO REMOVED FROM THE CAVITY, SEPARATING MOTHER LIQUOR FROM SOLID POTASSIUM CHLORIDE, ADJUSTING THE POTASSIUM CHLORIDE AND SODIUM CHLORIDE CONTENT OF THE MOTHER LIQUOR SUCH THAT IT IS CAPABLE OF DISSOLVING FURTHER POTASSIUM CHLORIDE AND SODIUM CHLORIDE IN THE WEIGHT RATIO SUCH CHLORIDES ARE PRESENT IN A SUBTERRANEAN ORE DEPOSIT, FEEDING THIS AQUEOUS MEDIUM TO A CAVITY OF SUDTERRANEAN ORE DEPOSIT, DISSOLVING BOTH POTASSIUM CHLORIDE AND SODIUM CHLORIDE FROM THE DEPOSITS IN APPROXIMATELY THEIR WEIGHT RATION IN THE DEPOSIT TO THEREBY FORM ADDITIONAL SOLUTION OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE, REMOVING FROM THE CAVITY SUCH AQUEOUS SOLUTION AND DEPOSITIONG FROM SOLUTION SOLID POTASSIUM CHLORIDE.
Claim 2
Independent Claim
150 words
A METHOD OF MINING POTASSIUM CHLORIDE FROM A SUBTERRANEAN DEPOSIT CONTAINING POTASSIUM CHLORIDE AND SODIUM CHLORIDE WHICH COMPRISES DISSOLVING WITH AN AQUEOUS MEDIUM THESE TWO SALTS FROM A TUBTERRANEAN CAVITY IN THE DEPOSIT, REMOVING SO FORMED SOLUTION FROM THE CAVITY, DEPOSITING SOLID POTASSIUM CHLORIDE FROM SOLUTION SO REMOVED FROM THE CAVITY, SEPARATING MOTHER LIQUOR FROM SOLID POTASSIUM CHLORIDE, ADJUSTING THE POTASSIUM CHLORIDE AND SODIUM CHLORIDE CONTENT OF THE MOTHER LIQUOR SUCH THAT IT IS CAPABLE OF DISSOLVING FURTHER POTASSIUM CHLORIDE AND SODIUM CHLORIDE IN THE WEIGHT RATIO SUCH CHLORIDES ARE PRESENT IN A SUBTERRANEAN ORE DEPOSIT, FEEDING THIS AQUEOUS MEDIUM TO A CAVITY OF SUDTERRANEAN ORE DEPOSIT, DISSOLVING BOTH POTASSIUM CHLORIDE AND SODIUM CHLORIDE FROM THE DEPOSITS IN APPROXIMATELY THEIR WEIGHT RATION IN THE DEPOSIT TO THEREBY FORM ADDITIONAL SOLUTION OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE, REMOVING FROM THE CAVITY SUCH AQUEOUS SOLUTION AND DEPOSITIONG FROM SOLUTION SOLID POTASSIUM CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |