US3586479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of synthetic faujasite
Assignee: Bayer AG
•
Filing: 1968-09-23
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Granted: 1971-06-22
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Expires: 1988-09-23
Abstract
Abstract PROCESS FOR THE PRODUCTION OF SYNTHETIC ZEOLITES WITH FAUJASITE STRUCTURE WHEREIN AN ALUMINA-CONTAINING SODIUM BORO-SILICATE GLASS CONTAINING AT LEAST 0.8 MOL OF SODIUM OXIDE PER MOL OF EACH A12O3, SIO2 AND B2O3 IS PREPARED AND THEREAFTER DIVIDED TO SMALL PARTICLES, WHEREUPON THE GLASS PARTICLES ARE CONVERTED TO THE CRYSTALLINE ZEOLITE BY HEATING AN AQUEOUS MIXTURE OF THE GLASS PARTICLES TO ABOUT 60-100*C. OVER A PERIOD OF TIME SUFFICIENT TO FORM THE DESIRED FAUJASITE ZEOLITE, THE WATER TO FORM THE AQUEOUS MIXTURE BEING USED IN AN AMOUNT OF FROM ABOUT 400-1400 ML. PER 100 G. OF GLASS.
Inventors
- 👤 Gerhard Heinze
- 👤 Friedrich Schwochow
- 👤 Horst Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:37
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2838; C01B33/2853
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |