Patent US2865710A successfully refreshed from Google Patents.
US2865710A
Expired / Lapsed
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Process of defluorination of phosphorus compounds
Assignee: International Minerals and Chemical Corp
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Filing: 1955-07-21
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Granted: 1958-12-23
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Expires: 1975-07-21
Abstract
No abstract record available.
Inventors
- 👤 Baron Ira M Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:54
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/32; C01B25/328; Y; Y10; Y10S; Y10S71/00; Y10S71/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS OF PREPARING DEFLUORINATED PHOSPHATES A SUBSTANTIAL PORTION OF WHICH ARE IN ALPHA FORM WHICH COMPRISES DIRECTLY INTRODUCING, FOR QUICK FUSION, A FLUORINE-CONTAINING SUPERPHOSPHATE, PREPARED BY CALCINATION AT A TEMPERATURE BELOW ITS FUSION TEMPERATURE, INTO A MASS OF SAID MATERIAL BEING MAINTAINED IN THE MOLTEN STATE AT TEMPERATURES BELOW VOLATILIZING TEMPERATURES FOR PHOSPHORUS CONSTITUENTS IN THE RATION AND AT THE RATE OF NOT MORE THAN ABOUT 15 POUNDS OF SOLID FEED MATERIAL PER MINUTE PER 100 POUNDS OF MOLTEN MATERIAL, REMOVING AT LEAST A PORTION OF SAID MOLTEN MASS WHEN HOMOGENEOUS AND QUENCHING THE REMOVED PORTION WITHIN AT LEAST TEN SECONDS AFTER ITS REMOVAL FROM THE MOLTEN BATH.
Claim 2
Dependent Claim
109 words
A PROCESS OF PREPARING DEFLUORINATED PHOSPHATES A SUBSTANTIAL PORTION OF WHICH ARE IN ALPHA FORM WHICH COMPRISES DIRECTLY INTRODUCING, FOR QUICK FUSION, A FLUORINE-CONTAINING SUPERPHOSPHATE, PREPARED BY CALCINATION AT A TEMPERATURE BELOW ITS FUSION TEMPERATURE, INTO A MASS OF SAID MATERIAL BEING MAINTAINED IN THE MOLTEN STATE AT TEMPERATURES BELOW VOLATILIZING TEMPERATURES FOR PHOSPHORUS CONSTITUENTS IN THE RATION AND AT THE RATE OF NOT MORE THAN ABOUT 15 POUNDS OF SOLID FEED MATERIAL PER MINUTE PER 100 POUNDS OF MOLTEN MATERIAL, REMOVING AT LEAST A PORTION OF SAID MOLTEN MASS WHEN HOMOGENEOUS AND QUENCHING THE REMOVED PORTION WITHIN AT LEAST TEN SECONDS AFTER ITS REMOVAL FROM THE MOLTEN BATH.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |