US3207701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aluminosilicate molecular sieve-silica gel composites
Assignee: ExxonMobil Oil Corp
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Filing: 1961-07-12
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Granted: 1965-09-21
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 John R Curtin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:11
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A METHOD FOR PRODUCING A MOLECULAR SIEVE COMPOSITE WHICH COMPRISES DISTRIBUTING A CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE IN FINELY DIVIDED FORM AND IN AN AMOUNT BETWEEN ABOUT 50 PERCENT AND ABOUT 90 PERCENT BY WEIGHT OF THE TOTAL SOLIDS, ON A DRY BASIS, OF THE ULTIMATE COMPOSITE IN A SILICEOUS HYDROSOL PREPARED BY REACTION OF AN ALKALI METAL SILICATE WITH AN ACID AND A WATER-SOLUBLE ALKALI METAL SALT TO FORM A SILICEOUS HYDROSOL CHARACTERIZED BY AN ALKALINITY EXPRESSED AS THE MOL RATIO OF UNNEUTRALIZED ALKALI METAL HYDROXIDE TO SILICA OF BETWEEN 0.3 AND 0.7, AN ALKALI METAL SALT CONCENTRATION OF BETWEEN ABOUT 0.3 AND ABOUT 3 GRAM EQUIVALENTS PER LITER AND A SILICA CONCENTRATION OF BETWEEN ABOUT 50 AND ABOUT 300 GRAMS SIO2 PER LITER OF HYDROSOL, PERMITTING THE RESULTING COMPOSITED HYDROSOL TO SET TO A HYDROGEL AND THEREAFTER REMOVING WATER FROM SAID HYDROGEL AT A TEMPERATURE NOT EXCEEDING 1000*F.
Claim 2
Independent Claim
149 words
A METHOD FOR PRODUCING A MOLECULAR SIEVE COMPOSITE WHICH COMPRISES DISTRIBUTING A CRYSTALLINE ALUMINOSILICATE MOLECULAR SIEVE IN FINELY DIVIDED FORM AND IN AN AMOUNT BETWEEN ABOUT 50 PERCENT AND ABOUT 90 PERCENT BY WEIGHT OF THE TOTAL SOLIDS, ON A DRY BASIS, OF THE ULTIMATE COMPOSITE IN A SILICEOUS HYDROSOL PREPARED BY REACTION OF AN ALKALI METAL SILICATE WITH AN ACID AND A WATER-SOLUBLE ALKALI METAL SALT TO FORM A SILICEOUS HYDROSOL CHARACTERIZED BY AN ALKALINITY EXPRESSED AS THE MOL RATIO OF UNNEUTRALIZED ALKALI METAL HYDROXIDE TO SILICA OF BETWEEN 0.3 AND 0.7, AN ALKALI METAL SALT CONCENTRATION OF BETWEEN ABOUT 0.3 AND ABOUT 3 GRAM EQUIVALENTS PER LITER AND A SILICA CONCENTRATION OF BETWEEN ABOUT 50 AND ABOUT 300 GRAMS SIO2 PER LITER OF HYDROSOL, PERMITTING THE RESULTING COMPOSITED HYDROSOL TO SET TO A HYDROGEL AND THEREAFTER REMOVING WATER FROM SAID HYDROGEL AT A TEMPERATURE NOT EXCEEDING 1000*F.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |