Patent US3228969A successfully refreshed from Google Patents.
US3228969A
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Process for synthesizing a methylammonium crystalline zeolite
Assignee: ExxonMobil Oil Corp
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Filing: 1962-04-30
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Granted: 1966-01-11
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 George T Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:45
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2876; Y; Y10; Y10S; Y10S423/00; Y10S423/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A METHOD FOR MAKING A CRYSTALLINE ZEOLITE HAVING THE COMPOSITION: 0.1 TO 0.3 R:0.7 TO 1.0X2O:AL2O3: 2.5 TO 4.0 SIO2$YH2O WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A METHYL AMMONIUM OXIDE, HYDROGEN OXIDE AND MIXTURES THEREOF WITH ONE ANOTHER; X IS SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM AND Y IS ANY VALUE FROM ABOUT 3.5 TO ABOUT 5.5 WHEREIN THE MOTHER LIQUOR REMAINNG AFTER CRYSTALLIZATION THEREFROM OF SAID ZEOLITE CONTAINS SODIUM AND TETRAMETHYLAMMONIUM IONS, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID MOTHER LIQUOR WITH A ZEOLITIC ADSORBENT CHARACTERIZED BY UNIFORM PORE OPENINGS OF LESS THAN 6 ANGSTROMS IN DIAMETER AND HAVING EXCHANGEABLE CATIONS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, AMMONIUM AND MIXTURES THEREOF WITH ONE ANOTHER WHEREBY SELECTIVE EXCHANGE BETWEEN THE SODIUM IONS PRESENT IN SAID MOTHER LIQUOR AND SAID CATIONS OCCURS AND EMPLOYING THE SODIUM DEPLETED MOTHER LIQUOR IN FURTHER PRPEPARATION OF SAID ZEOLITE.
Claim 2
Dependent Claim
151 words
IN A METHOD FOR MAKING A CRYSTALLINE ZEOLITE HAVING THE COMPOSITION: 0.1 TO 0.3 R:0.7 TO 1.0X2O:AL2O3: 2.5 TO 4.0 SIO2$YH2O WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A METHYL AMMONIUM OXIDE, HYDROGEN OXIDE AND MIXTURES THEREOF WITH ONE ANOTHER; X IS SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM AND Y IS ANY VALUE FROM ABOUT 3.5 TO ABOUT 5.5 WHEREIN THE MOTHER LIQUOR REMAINNG AFTER CRYSTALLIZATION THEREFROM OF SAID ZEOLITE CONTAINS SODIUM AND TETRAMETHYLAMMONIUM IONS, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID MOTHER LIQUOR WITH A ZEOLITIC ADSORBENT CHARACTERIZED BY UNIFORM PORE OPENINGS OF LESS THAN 6 ANGSTROMS IN DIAMETER AND HAVING EXCHANGEABLE CATIONS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, AMMONIUM AND MIXTURES THEREOF WITH ONE ANOTHER WHEREBY SELECTIVE EXCHANGE BETWEEN THE SODIUM IONS PRESENT IN SAID MOTHER LIQUOR AND SAID CATIONS OCCURS AND EMPLOYING THE SODIUM DEPLETED MOTHER LIQUOR IN FURTHER PRPEPARATION OF SAID ZEOLITE.
References Cited (Backward Citations)
US2882244A
Cited
US3071434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |