US4253989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zeolitic catalyst and method of producing same
Assignee: HARSHAW/FILTROL PARTNERSHIP A PARTNERSHIP OF
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Filing: 1978-04-14
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Granted: 1981-03-03
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Expires: 1998-04-14
Abstract
Abstract The catalyst of this invention is composed of an exchanged zeolite of the faujasite type composited with a matrix composed of clay, alumina and silica added as sodium silicate, the added silica being in the range of about 0.5% to less than about 3.5% based on the composite catalyst on a volatile free basis.
Inventors
- 👤 John Lim
- 👤 Ralph M. Haney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:36
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
60 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina, and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, the sodium content of the catalyst being less than 1% of the catalyst on a volatile free basis.
Claim 2
Dependent Claim
60 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina, and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, the sodium content of the catalyst being less than 1% of the catalyst on a volatile free basis.
Claim 3
Dependent Claim
112 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite is substantially in excess of about 1% of the zeolite expressed as Na 2 O on a volatile free basis and the SiO 2 is in the range of about 0.5% to less than about 2% and the sodium content of the catalyst expressed as Na 2 O, is less than 1% based on the composite catalyst on a volatile free basis.
Claim 4
Dependent Claim
112 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite is substantially in excess of about 1% of the zeolite expressed as Na 2 O on a volatile free basis and the SiO 2 is in the range of about 0.5% to less than about 2% and the sodium content of the catalyst expressed as Na 2 O, is less than 1% based on the composite catalyst on a volatile free basis.
Claim 5
Dependent Claim
115 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite expressed as Na 2 O is substantially less than about 1% based on the exchanged zeolite on a volatile free basis and the sodium silicate, expressed as SiO 2 is in the range of about 0.5% to about 2% and the sodium content of the catalyst is less than 1% expressed as Na 2 O, based on the composite catalyst on a volatile free basis.
Claim 6
Dependent Claim
115 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite expressed as Na 2 O is substantially less than about 1% based on the exchanged zeolite on a volatile free basis and the sodium silicate, expressed as SiO 2 is in the range of about 0.5% to about 2% and the sodium content of the catalyst is less than 1% expressed as Na 2 O, based on the composite catalyst on a volatile free basis.
Claim 7
Dependent Claim
115 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite, expressed as Na 2 O, is substantially in excess of about 1% based on the zeolite on a volatile free basis and the sodium silicate expressed as SiO 2 is in the range of about 0.5% to about 1% and the sodium content, expressed as Na 2 O of the catalyst is less than about 1% on the composite catalyst on a volatile free basis.
Claim 8
Dependent Claim
115 words
A hydrocarbon conversion catalyst comprising a zeolite of the faujasite type, clay, alumina and sodium silicate, the silicate expressed as SiO 2 being in the range of about 0.5% to about 3.5% based on the composite catalyst, on a volatile free basis, in which the sodium content of the zeolite, expressed as Na 2 O, is substantially in excess of about 1% based on the zeolite on a volatile free basis and the sodium silicate expressed as SiO 2 is in the range of about 0.5% to about 1% and the sodium content, expressed as Na 2 O of the catalyst is less than about 1% on the composite catalyst on a volatile free basis.
Claim 9
Dependent Claim
21 words
The catalyst of claim 1, 2, 3, or 4 which is formed by spray drying a slurry comprising a Y zeolite.
Claim 10
Dependent Claim
85 words
The catalyst of claim 1, 2, 3, or 5 which is formed by spray drying a slurry comprising a zeolite containing Na+ less than about 1% expressed as Na 2 O, based on the zeolite on a volatile free basis, clay and pseudoboehmite and sodium silicate expressed as SiO 2 in the range of about 0.5% to about 2% and the sodium content of the catalyst is less than about 1% expressed as Na 2 O, based on composite catalyst on a volatile free basis.
Claim 11
Dependent Claim
57 words
A process of preparing a catalyst which comprises mixing in water, a zeolite of the faujasite type, clay, pseudoboehmite and sodium silicate said sodium silicate being in an amount equivalent to SiO 2 in the range of about 0.5% to about 3.5% based on the composite catalyst on a volatile free basis and spray drying said slurry.
Claim 12
Dependent Claim
57 words
A process of preparing a catalyst which comprises mixing in water, a zeolite of the faujasite type, clay, pseudoboehmite and sodium silicate said sodium silicate being in an amount equivalent to SiO 2 in the range of about 0.5% to about 3.5% based on the composite catalyst on a volatile free basis and spray drying said slurry.
Claim 13
Dependent Claim
78 words
The process of claim 7 in which the sodium content of the zeolite, expressed as Na 2 O, is substantially less than about 1% based on the zeolite on a volatile free basis and the sodium silicate expressed as SiO 2 , is in the range of about 0.5% to about 2% and the sodium content of the catalyst, expressed as Na 2 O, is less than 1% based on the composite catalyst on a volatile free basis.
Claim 14
Dependent Claim
80 words
The process of claim 7 in which the sodium content of the zeolite, expressed as Na 2 O is in excess of about 1% based on the exchanged zeolite on a volatile free basis and the sodium silicate, expressed as SiO 2 , is in the range of about 0.5% to about 1% and the sodium content of the catalyst, expressed as Na 2 O, is less than about 1% based on the composite catalyst on a volatile free basis.
Claim 15
Dependent Claim
16 words
The process of claims 7, 8, or 9 in which the zeolite is a Y zeolite.
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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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |