Patent US2679268A successfully refreshed from Google Patents.
Patent US3158579A successfully refreshed from Google Patents.
US3158579A
Expired / Lapsed
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Molecular sieve sorbents bonded with ion-exchanged clay
Assignee: Universal Oil Products Co
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Filing: 1960-12-30
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Granted: 1964-11-24
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ernst L Pollitzer
- 👤 Kvetinskas Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:25
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR INCREASING THE SELECTIVITY AND CAPACITY OF A METAL ALUMINO-SILICATE MOLECULAR SIEVE SORBENT FORMED INTO DISCRETE PARTICLES BY COMPOSITING CRYSTALS OF THE METAL ALUMINO-SILICATE WITH A CLAY BINDER AND PRESSING THE MIXTURE INTO SAID DISCRETE PARTICLES WHICH COMPRISES CONTACTING SAID CLAY BINDER WITH AN AQUEOUS SOLUTION OF A SALT OF THE METAL IN SAID METAL ALUMINO-SILICATE AT IONEXCHANGE REACTION CONDITONS FOR A TIME SUFFICIENT TO SUBSTANTIALLY EXCHANGE FOREIGN METAL IONS PRESENT IN SAID CLAY WITH IONS OF THE METAL IN SAID METAL SALT.
Claim 2
Dependent Claim
85 words
A PROCESS FOR INCREASING THE SELECTIVITY AND CAPACITY OF A METAL ALUMINO-SILICATE MOLECULAR SIEVE SORBENT FORMED INTO DISCRETE PARTICLES BY COMPOSITING CRYSTALS OF THE METAL ALUMINO-SILICATE WITH A CLAY BINDER AND PRESSING THE MIXTURE INTO SAID DISCRETE PARTICLES WHICH COMPRISES CONTACTING SAID CLAY BINDER WITH AN AQUEOUS SOLUTION OF A SALT OF THE METAL IN SAID METAL ALUMINO-SILICATE AT IONEXCHANGE REACTION CONDITONS FOR A TIME SUFFICIENT TO SUBSTANTIALLY EXCHANGE FOREIGN METAL IONS PRESENT IN SAID CLAY WITH IONS OF THE METAL IN SAID METAL SALT.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |