US3264057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of soda ash including the leaching of trona with steam
Assignee: Intermountain Research and Development Corp
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Filing: 1963-03-07
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Granted: 1966-08-02
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Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Miller Warren Standish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:25
CPC Classifications
C; C01; C01D; C01D7/00; C01D7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR THE PREPARATION OF SODA ASH FROM CRUDE TRONA WHICH COMPRISES LEACHING THE CARBONATE VALUES FROM THE CRUDE TRONA WITH AN AQUEOUS SOLVENT, DECOMPOSING THE MAJOR FRACTION OF THE SODIUM BICARBONATE IN THE RESULTING SOLUTION TO SODIUM CARBONATE BY STEAM STRIPPING, CRYSTALLIZING ANHYDROUS SODIUM CARFROM THE SAID SOLUTION, DRYING THE ANHYDROUS SODIUM CARBONATE CRYSTALS TO FORM SODA ASH AND RECOVERING SODA ASH HAVING A HIGH BULK DENSITY.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE PREPARATION OF SODA ASH FROM CRUDE TRONA WHICH COMPRISES LEACHING THE CARBONATE VALUES FROM THE CRUDE TRONA WITH AN AQUEOUS SOLVENT, DECOMPOSING THE MAJOR FRACTION OF THE SODIUM BICARBONATE IN THE RESULTING SOLUTION TO SODIUM CARBONATE BY STEAM STRIPPING, CRYSTALLIZING ANHYDROUS SODIUM CARFROM THE SAID SOLUTION, DRYING THE ANHYDROUS SODIUM CARBONATE CRYSTALS TO FORM SODA ASH AND RECOVERING SODA ASH HAVING A HIGH BULK DENSITY.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |