Patent US2958579A successfully refreshed from Google Patents.
US2958579A
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Process for manufacture of molecular sieve adsorbents
Assignee: Union Carbide Corp
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Filing: 1955-06-20
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Granted: 1960-11-01
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 John E Mccormick
- 👤 Emery H Westerland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:15
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815; Y; Y10; Y10S; Y10S423/00; Y10S423/21; Y10S423/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A METHOD FOR SYNTHESIZING A CRYSTALLIZINE ZEOLITIC MOLECULAR SIEVE WHICH COMPRISES PREPARING AT LEAST TWO SEPARATE AQUEOUS SOLUTIONS OF REACTANTS WHICH IN THE AGGREGATE CONTAIN WATER, SILICATE IONS, ALUMINATE IONS, AND METAL IONS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL IONS AND ALKALINE EARTH METAL IONS IN THE PROPORTIONS REQUIRED TO FORM CRYSTALS OF SAID MOLECULAR SIEVE, PREHEATING SAID SEPARATE SOLUTIONS BETWEEN ABOUT 80*C. TO 100*C. RAPIDLY AND INTIMATELY MIXING SAID SEPARATE PREHEATED SOLUTIONS TO FORM AN AGGREGATE SOLUTION, AND HOLDING SAID AGGREGATE SOLUTION AT BETWEEN ABOUT 80*C. TO 100*C UNTIL CRYSTALS OF SAID MOLECULAR SIEVE FORM.
Claim 2
Independent Claim
98 words
A METHOD FOR SYNTHESIZING A CRYSTALLIZINE ZEOLITIC MOLECULAR SIEVE WHICH COMPRISES PREPARING AT LEAST TWO SEPARATE AQUEOUS SOLUTIONS OF REACTANTS WHICH IN THE AGGREGATE CONTAIN WATER, SILICATE IONS, ALUMINATE IONS, AND METAL IONS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL IONS AND ALKALINE EARTH METAL IONS IN THE PROPORTIONS REQUIRED TO FORM CRYSTALS OF SAID MOLECULAR SIEVE, PREHEATING SAID SEPARATE SOLUTIONS BETWEEN ABOUT 80*C. TO 100*C. RAPIDLY AND INTIMATELY MIXING SAID SEPARATE PREHEATED SOLUTIONS TO FORM AN AGGREGATE SOLUTION, AND HOLDING SAID AGGREGATE SOLUTION AT BETWEEN ABOUT 80*C. TO 100*C UNTIL CRYSTALS OF SAID MOLECULAR SIEVE FORM.
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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |