US2824786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of kh2po4
Assignee: Horizons Inc
•
Filing: 1956-02-20
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Granted: 1958-02-25
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Expires: 1976-02-20
Abstract
No abstract record available.
Inventors
- 👤 Merlub-Sobel Menahem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:50
CPC Classifications
C; C05; C05B; C05B7/00; C01; C01B; C01B25/00; C01B25/16; C01B25/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR PRODUCING POTASSIUM DIHYDROGEN PHOSPHATE WHICH COMPRISES: FORMING A WATER SOLUTION AT A RELATIVELY HIGH TEMPERATURE FROM POTASSIUM CHLORIDE AND SODIUM DIHYDROGEN PHOSPHATE, COOLING THE SOLUTION TO BELOW THE BOILING POINT OF AN ORGANIC LIQUID TO BE ADDED THERETO, ADDING AN ORGANIC LIQUID TO THE SOLUTION FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES BOILING BELOW 100*C., COOLING THE RESULTING PRODUCT TO PRECIPITATE THE POTASSIUM DIHYDROGEN PHOSPHATE FORMED BY INTERACTION OF THE INGREDIENTS IN THE SOLUTION, AND SEPARATING AND RECOVERING THE CRYSTALS FROM THE REMAINING LIQUOR.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PRODUCING POTASSIUM DIHYDROGEN PHOSPHATE WHICH COMPRISES: FORMING A WATER SOLUTION AT A RELATIVELY HIGH TEMPERATURE FROM POTASSIUM CHLORIDE AND SODIUM DIHYDROGEN PHOSPHATE, COOLING THE SOLUTION TO BELOW THE BOILING POINT OF AN ORGANIC LIQUID TO BE ADDED THERETO, ADDING AN ORGANIC LIQUID TO THE SOLUTION FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES BOILING BELOW 100*C., COOLING THE RESULTING PRODUCT TO PRECIPITATE THE POTASSIUM DIHYDROGEN PHOSPHATE FORMED BY INTERACTION OF THE INGREDIENTS IN THE SOLUTION, AND SEPARATING AND RECOVERING THE CRYSTALS FROM THE REMAINING LIQUOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |