Patent US1197366A successfully refreshed from Google Patents.
Patent US3065054A successfully refreshed from Google Patents.
US3065054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic crystalline zeolite produced from dehydrated aluminum silicate
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1959-06-02
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Granted: 1962-11-20
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Expires: 1979-06-02
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
2026-10-31 19:47
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/30; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815; C01B33/2876; C01B33/2892; Y; Y10; Y10S; Y10S423/00; Y10S423/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD FOR MAKING A SYNTHETIC CRYSTALLINE ZEOLITE IN THE FORM OF COHERENT MICROSPHERES OF SUBSTANTIALLY HOMOGENEOUS POLYCRYSTALLINE COMPOSITION WHICH COMPRISES FORMING AN APPARENTLY HOMOGENEOUS MIXTURE CONSISTING ESSENTIALLY OF FINELY DIVIDED DEHYDRATED KAOLIN CLAY AND AN AQUEOUS SOLUTION OF NAOH IN AN AMOUNT TO PROVIDE ABOUT 0.5 MOL OF NA2O PER MOL OF SIO2 IN SAID MIXTURE, SPRAY DRYING THE MIXTURE UNDER CONDITIONS SUCH THAT THE H2O/NA2O MOL RATIO IN THE RESULTANT MICROSPHERES IS WITHIN THE RANGE OF FROM ABOUT 4.5 TO ABOUT 11.5, REACTING THE CLAY WITH SAID NAOH WHILE MAINTAINING SAID MICROSPHERES OUT OF CONTACT WITH AN EXTERNAL AQUEOUS LIQUID PHASE AND CONTROLLING THE TEMPERATURE OF THE MICROSPHERES WITHIN THE RANGE OF ABOUT 70*F. TO ABOUT 200*F. UNTIL AN AMORPHOUS HOMOGENEUOS REACTION PRODUCT IS FORMED, AND AGING SAID AMORPHOUS REACTION PRODUCT AT A TEMPERATURE FROM ABOUT 70*F. TO ABOUT 325*F. UNDER AT LEAST AUTOGENOUS PRESSURE TO CONVERT SAID AMORPHOUS REACTION PRODUCT INTO COHERENT MICROSPHERES OF SUBSTANTIALLY HOMOGENEOUS CRYSTALLINE ZEOLITIC COMPOSITION.
Claim 2
Independent Claim
162 words
A METHOD FOR MAKING A SYNTHETIC CRYSTALLINE ZEOLITE IN THE FORM OF COHERENT MICROSPHERES OF SUBSTANTIALLY HOMOGENEOUS POLYCRYSTALLINE COMPOSITION WHICH COMPRISES FORMING AN APPARENTLY HOMOGENEOUS MIXTURE CONSISTING ESSENTIALLY OF FINELY DIVIDED DEHYDRATED KAOLIN CLAY AND AN AQUEOUS SOLUTION OF NAOH IN AN AMOUNT TO PROVIDE ABOUT 0.5 MOL OF NA2O PER MOL OF SIO2 IN SAID MIXTURE, SPRAY DRYING THE MIXTURE UNDER CONDITIONS SUCH THAT THE H2O/NA2O MOL RATIO IN THE RESULTANT MICROSPHERES IS WITHIN THE RANGE OF FROM ABOUT 4.5 TO ABOUT 11.5, REACTING THE CLAY WITH SAID NAOH WHILE MAINTAINING SAID MICROSPHERES OUT OF CONTACT WITH AN EXTERNAL AQUEOUS LIQUID PHASE AND CONTROLLING THE TEMPERATURE OF THE MICROSPHERES WITHIN THE RANGE OF ABOUT 70*F. TO ABOUT 200*F. UNTIL AN AMORPHOUS HOMOGENEUOS REACTION PRODUCT IS FORMED, AND AGING SAID AMORPHOUS REACTION PRODUCT AT A TEMPERATURE FROM ABOUT 70*F. TO ABOUT 325*F. UNDER AT LEAST AUTOGENOUS PRESSURE TO CONVERT SAID AMORPHOUS REACTION PRODUCT INTO COHERENT MICROSPHERES OF SUBSTANTIALLY HOMOGENEOUS CRYSTALLINE ZEOLITIC COMPOSITION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |