Patent US3356450A successfully refreshed from Google Patents.
US3356450A
Expired / Lapsed
US
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Process for the production of molecular sieve granules
Assignee: Bayer AG
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Filing: 1964-12-24
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Granted: 1967-12-05
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Heinze Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/14; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7003; C01B39/20; C01B39/22; Y; Y10; Y10S; Y10S423/00; Y10S423/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
PROCESS FOR THE PRODUCTION OF SUBSTANTIALLY PURE CRYSTALLINE MOLECULAR SIEVE ZEOLITE GRANULES COMPRISING FORMING GRANULES COMPRISING MOLECULAR SIEVE PARTICLES BOUND WITH SILICIC ACID, TREATING SAID SILICIC ACID BONDED MOLECULAR SIEVE GRANULES AT TEMPERATURES OF BETWEEN 15 AND 100*C. WITH AN AQUEOUS SOLUTION CONTAINING AT LEAST 0.4 MOL OF AL2O2 AS ALKALI METAL ALUMINATE AND AT LEAST 1.5 MOLS OF ALKALI METAL HYDROXIDE PER MOL OF BINDING AGENTS CALCULATED AS SIO2 WHEREBY SAID BINDER IS CONVERTED TO MOLECULAR SIEVE PARTICLES OF A COMPOSITION IDENTICAL TO THE COMPOSITION OF SAID MOLECULAR SIEVE PARTICLES, AND WHEREBY SAID GRANULES CONSISTING SUBSTANTIALLY OF SAID MOLECULAR SIEVE COMPOSITION ARE PRODUCED.
Claim 2
Dependent Claim
104 words
PROCESS FOR THE PRODUCTION OF SUBSTANTIALLY PURE CRYSTALLINE MOLECULAR SIEVE ZEOLITE GRANULES COMPRISING FORMING GRANULES COMPRISING MOLECULAR SIEVE PARTICLES BOUND WITH SILICIC ACID, TREATING SAID SILICIC ACID BONDED MOLECULAR SIEVE GRANULES AT TEMPERATURES OF BETWEEN 15 AND 100*C. WITH AN AQUEOUS SOLUTION CONTAINING AT LEAST 0.4 MOL OF AL2O2 AS ALKALI METAL ALUMINATE AND AT LEAST 1.5 MOLS OF ALKALI METAL HYDROXIDE PER MOL OF BINDING AGENTS CALCULATED AS SIO2 WHEREBY SAID BINDER IS CONVERTED TO MOLECULAR SIEVE PARTICLES OF A COMPOSITION IDENTICAL TO THE COMPOSITION OF SAID MOLECULAR SIEVE PARTICLES, AND WHEREBY SAID GRANULES CONSISTING SUBSTANTIALLY OF SAID MOLECULAR SIEVE COMPOSITION ARE PRODUCED.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |