US2497062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of alkali metal phytates
Assignee: Corn Products Refining Co
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Filing: 1947-03-17
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Granted: 1950-02-14
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Expires: 1967-03-17
Abstract
No abstract record available.
Inventors
- 👤 Neal E Artz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:01
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
THE PROCESS WHICH COMPRISES EFFECTING CHEMICAL REACTION BETWEEN (A) A METAL PHYTATE PRECIPITATE COMPRISING ESSENTIALLY A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CALCIUM PHYTATE, MAGNESIUM PHYTATE AND MIXTURES THEREOF AND OBTAINED AS A PRECIPITATE RESULTING FROM THE TREATMENT OF AN ACIDIC PLANT EXTRACT WITH AN ALKALINE MATERIAL SELECTED FROM THE GROUP CONSISTING OF LIME, CALCIUM HYDROXIDE AND MAGNESIUM HYDROXIDE, AND (B) AN ALKALI METAL HYDROXIDE IN (C) A WATER MEDIUM, AND RECOVERING ALKALI METAL PHYTATE; THE RATIO OF SAID METAL PHYTATE PRECIPITATE, ON A DRY BASIS, TO ALKALI METAL HYDROXIDE, ON A DRY BASIS, TO WATER BEING METAL PHYTATE PRECIPITATE 5, ALKALI METAL HYDROXIDE 6 TO 10 AND WATER 2 TO 20, THE TEMPERATURE OF SAID MEDIUM DURING REACTION BEING WITHIN THE RANGE OF FROM ABOUT 190*F. TO 240*F.
Claim 2
Dependent Claim
130 words
THE PROCESS WHICH COMPRISES EFFECTING CHEMICAL REACTION BETWEEN (A) A METAL PHYTATE PRECIPITATE COMPRISING ESSENTIALLY A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CALCIUM PHYTATE, MAGNESIUM PHYTATE AND MIXTURES THEREOF AND OBTAINED AS A PRECIPITATE RESULTING FROM THE TREATMENT OF AN ACIDIC PLANT EXTRACT WITH AN ALKALINE MATERIAL SELECTED FROM THE GROUP CONSISTING OF LIME, CALCIUM HYDROXIDE AND MAGNESIUM HYDROXIDE, AND (B) AN ALKALI METAL HYDROXIDE IN (C) A WATER MEDIUM, AND RECOVERING ALKALI METAL PHYTATE; THE RATIO OF SAID METAL PHYTATE PRECIPITATE, ON A DRY BASIS, TO ALKALI METAL HYDROXIDE, ON A DRY BASIS, TO WATER BEING METAL PHYTATE PRECIPITATE 5, ALKALI METAL HYDROXIDE 6 TO 10 AND WATER 2 TO 20, THE TEMPERATURE OF SAID MEDIUM DURING REACTION BEING WITHIN THE RANGE OF FROM ABOUT 190*F. TO 240*F.
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) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |