US4348369A
Expired / Lapsed
US
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Zeolite LZ-200
Assignee: Katalistiks International Inc
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Filing: 1981-07-06
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Granted: 1982-09-07
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Expires: 2001-07-06
Abstract
Abstract Crystalline synthetic zeolite, denoted "LZ-200", has an anhydrous composition in terms of mole-ratios of oxides of: 0.9-1.1 Na2O: Al2O3:1.9-2.4 SiO2, while having a pore diameter somewhat smaller than that of potassium zeolite A, and is useful as an adsorbent and ion-exchanger.
Inventors
- 👤 Richard J. Hinchey
- 👤 Willis W. Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:53
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2869
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
71 words
A synthetic crystalline zeolite having, on an anhydrous basis, a composition expressed in terms of mole-ratios of oxides as follows; 0.9-1.1 M.sub.2/n O:Al.sub.2 O.sub.3 :1.9-2.4 SiO.sub.2, where M is a cation selected from the group including alkali, alkaline earth and transition metals, ammonium and hydrogen, and n is the valence of M, said crystalline zeolite having an X-ray powder diffraction pattern containing at least those d-spacings set forth in Table A.
Claim 2
Dependent Claim
71 words
A synthetic crystalline zeolite having, on an anhydrous basis, a composition expressed in terms of mole-ratios of oxides as follows; 0.9-1.1 M.sub.2/n O:Al.sub.2 O.sub.3 :1.9-2.4 SiO.sub.2, where M is a cation selected from the group including alkali, alkaline earth and transition metals, ammonium and hydrogen, and n is the valence of M, said crystalline zeolite having an X-ray powder diffraction pattern containing at least those d-spacings set forth in Table A.
Claim 3
Dependent Claim
12 words
A composition according to claim 1 where M represents the sodium cation.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |