US3194632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of magnesium phosphates or of salt mixtures containing magnesium phosphates
Assignee: ISRAEL MINING IND INST FOR RES
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Filing: 1962-08-13
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Granted: 1965-07-13
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Expires: 1982-08-13
Abstract
No abstract record available.
Inventors
- 👤 Avraham M Baniel
- 👤 Hugo C Heimann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/45; C01B25/32; C01B25/34; C05; C05B; C05B9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE MANUFACTURE OF ANHYDROUS MAGNESIUM ORTHOPHOSPHATE, WHICH COMPRISES REACTING ROCK PHOSPHATE CONTAINING A PREDETERMINED AMOUNT OF CALCIUM WITH A MIXTURE OF ANHYDROUS MAGNESIUM CHLORIDE AND A CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND AMMONIA CHLORIDE AT A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE SAID MIXTURE TO START TO MELT, SAID MIXTURE CONTAINING AN AMOUNT OF MAGNESIUM STOICHIOMETRICALLY EQUIVALENT TO A DESIRED PROPORTION OF THE CALCIUM OF THE ROCK PHOSPHATE, THEREBY TO PRODUCE A PRODUCT CONSISTING OF A MIXTURE OF A MAJOR PART OF ANHYDROUS MAGNESIUM ORTHOPHOSPHATE AND A MINOR PAT OF CALCIUM ORTHOPHOSPHATE.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE MANUFACTURE OF ANHYDROUS MAGNESIUM ORTHOPHOSPHATE, WHICH COMPRISES REACTING ROCK PHOSPHATE CONTAINING A PREDETERMINED AMOUNT OF CALCIUM WITH A MIXTURE OF ANHYDROUS MAGNESIUM CHLORIDE AND A CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND AMMONIA CHLORIDE AT A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE SAID MIXTURE TO START TO MELT, SAID MIXTURE CONTAINING AN AMOUNT OF MAGNESIUM STOICHIOMETRICALLY EQUIVALENT TO A DESIRED PROPORTION OF THE CALCIUM OF THE ROCK PHOSPHATE, THEREBY TO PRODUCE A PRODUCT CONSISTING OF A MIXTURE OF A MAJOR PART OF ANHYDROUS MAGNESIUM ORTHOPHOSPHATE AND A MINOR PAT OF CALCIUM ORTHOPHOSPHATE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |