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Patent US4362653A successfully refreshed from Google Patents.
US4362653A
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Hydrocarbon conversion catalyst
Assignee: Honeywell UOP LLC
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Filing: 1981-04-27
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Granted: 1982-12-07
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Expires: 2001-04-27
Abstract
Abstract Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a catalyst composite comprising a silica polymorph consisting of crystalline silica, said silica polymorph after calcination in air at 600 DEG C. for one hour, having a mean refractive index of 1.39+/-0.01 and a specific gravity at 25 DEG C. of 1.70+/-0.05 g/cc and a refractory inorganic oxide.
Inventors
- 👤 Delmar W. Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:17
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/12; C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; B01J29/00; B01J29/03; B01J29/035; C07; C07C; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/18; C07C5/00; C07C5/22; C07C5/2206; C07C5/27; C07C5/2729; C07C5/2732; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C07C2521/00; C07C2521/02; C07C2521/04; C07C2529/00; C07C2529/03; C07C2529/035; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
65 words
A catalyst composite comprising from about 5 weight percent to about 95 weight percent of a silica polymorph consisting of crystalline silica, said silica polymorph after calcination in air at 600° C. for one hour, having a mean refractive index of 1.39±0.01 and a specific gravity at 25° C. of 1.70±0.05 g/cc and at least 5 weight percent to about 95 weight percent Ziegler alumina.
Claim 2
Dependent Claim
65 words
A catalyst composite comprising from about 5 weight percent to about 95 weight percent of a silica polymorph consisting of crystalline silica, said silica polymorph after calcination in air at 600° C. for one hour, having a mean refractive index of 1.39±0.01 and a specific gravity at 25° C. of 1.70±0.05 g/cc and at least 5 weight percent to about 95 weight percent Ziegler alumina.
Claim 3
Dependent Claim
21 words
The catalytic composite of claim 1 which comprises a component selected from Group IV-A, V-B, V-A, VI-B, VII-A, VII-B and VIII.
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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |