US3714366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of mordenite
Assignee: Nippon Chemical Industrial Co Ltd
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Filing: 1969-09-10
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Granted: 1973-01-30
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Expires: 1989-09-10
Abstract
Abstract CRYSTALLINE ZEOLITES INCLUDING MORDENITE AND ANALCITE ARE PRODUCED BY HEATING AN ALKALI METAL SILICATE GLASS COMPRISING SIO2, M2O, AND AL2O3 WHEREIN M IS SODIUM OR POTASSIUM, THE MOLAR RATIO OF SIO2/M2O RANGING FROM ABOUT 1 TO 4 AND THE AL2O3 BEING PRESENT IN AN AMOUNT UP TO 10% BY WEIGHT (PREFERABLY 0.1-5%) BASED ON THE WEIGHT OF SIO2 AND M2O, IN WATER AT A TEMPERATURE OF FROM ABOUT 110 TO 210* C. UNTIL THE ZEOLITE PRODUCT FORMS. AUXILIARY RAW MATERIALS SUCH AS POWDERED SILICA SAND, SILICA SOL, SILICA GEL, DIATOMACEOUS EARTH, SODIUM OR POTASSIUM HYDROXIDES OR CARBONATES, SODIUM ALUMINATE, ALUMINUM HYDROXIDE, AND ALUMINA SOL CAN BE USED WITH THE ALKALI METAL SILICATE GLASS.
Inventors
- 👤 Y Fukuda
- 👤 N Yuyuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:48
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2861; C03C1/00; Y; Y10; Y10S; Y10S423/00; Y10S423/25
Claims Analysis
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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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |