US2992068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making synthetic zeolitic material
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1959-02-20
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Granted: 1961-07-11
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Expires: 1979-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Haden
- 👤 Frank J Dzierzanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF MAKING A SYNTHETIC ZEOLITE IN THE FORM OF A HARD COHERENT MASS WHICH COMPRISES FORMING AN APPARENTLY HOMOGENEOUS COMPACT MASS CONSISTING ESSENTIALLY OF A MIXTURE OF DEHYDRATED KAOLIN CLAY AND AN AQUEOUS SOLUTION OF NAOH, SAID AQUEOUS SOLUTION HAVING A CONCENTRATION OF FROM ABOUT 30% TO ABOUT 55% AND BEING PRESENT IN AN AMOUNT TO PROVIDE ABOUT 9.0 GRAM MOLS OF NAOH PER KILOGRAM OF SAID CLAY, ON A VOLATILE FREE CLAY BASIS, REACTING SAID CLAY WITH SAID NAOH WHILE CONTROLLING THE TEMPERATURE OF SAID MASS WITHIN THE RANGE OF ABOUT 70*F. TO ABOUT 115*F. UNTIL A HOMOGENEOUS AMORPHOUS REACTION PRODUCT IS FORMED, AND AGING SAID AMORPHOUS REACTION PRODUCT IN THE PRESENCE OF WATER AT A TEMPERATURE OF FROM ABOUT 70*F. TO ABOUT 325*F. FOR A TIME SUFFICIENT TO CONVERT SAID AMORPHOUS PRODUCT INTO A HOMOGENEOUS POLYCRYSTALLINE ZEOLITIC MASS.
Claim 2
Independent Claim
142 words
A METHOD OF MAKING A SYNTHETIC ZEOLITE IN THE FORM OF A HARD COHERENT MASS WHICH COMPRISES FORMING AN APPARENTLY HOMOGENEOUS COMPACT MASS CONSISTING ESSENTIALLY OF A MIXTURE OF DEHYDRATED KAOLIN CLAY AND AN AQUEOUS SOLUTION OF NAOH, SAID AQUEOUS SOLUTION HAVING A CONCENTRATION OF FROM ABOUT 30% TO ABOUT 55% AND BEING PRESENT IN AN AMOUNT TO PROVIDE ABOUT 9.0 GRAM MOLS OF NAOH PER KILOGRAM OF SAID CLAY, ON A VOLATILE FREE CLAY BASIS, REACTING SAID CLAY WITH SAID NAOH WHILE CONTROLLING THE TEMPERATURE OF SAID MASS WITHIN THE RANGE OF ABOUT 70*F. TO ABOUT 115*F. UNTIL A HOMOGENEOUS AMORPHOUS REACTION PRODUCT IS FORMED, AND AGING SAID AMORPHOUS REACTION PRODUCT IN THE PRESENCE OF WATER AT A TEMPERATURE OF FROM ABOUT 70*F. TO ABOUT 325*F. FOR A TIME SUFFICIENT TO CONVERT SAID AMORPHOUS PRODUCT INTO A HOMOGENEOUS POLYCRYSTALLINE ZEOLITIC MASS.
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |