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US3923639A
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Converting hydrocarbons with zeolite ZSM-4
Assignee: Mobil Oil AS
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Filing: 1972-05-17
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Granted: 1975-12-02
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Expires: 1992-05-17
Abstract
Abstract This invention deals with a process of converting a hydrocarbon charge by passing it over a new family of crystalline zeolites characterized by a distinctive X-ray powder diffraction pattern. The new family of crystalline zeolites is known as zeolite ZSM4.
Inventors
- 👤 Julius Ciric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:03
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; B01J29/70; B01J29/7011; B01J29/72; B01J29/74; B01J29/7423; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/18; C07C5/00; C07C5/22; C07C5/27; C07C5/2729; C07C5/2732; C07C5/2737; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B01J2229/00; B01J2229/10; B01J2229/16; B01J2229/30; B01J2229/36; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
1 words
9+0.2M2/NOAL2O3:3-20SIO2:ZH2O
Claim 2
Dependent Claim
47 words
A PROCESS FOR CONVERTING A HYDROCARBON CHARGE WHICH COMPRISES CONTACTING THE SAME UNDER HYDROCARBON CONVERSION CONDITIONS WITH A CRYSTALLINE ALUMINOSILICATE ZEOLITE CATALYST HAVING THE X-RAY POWDER DIFFRACTION PATTERN OF TABLE 1 TO THE SPECIFICATION AND HAVING A COMPOSITION IN TERMS OF MOLE RATIOS OF OXIDES AS FOLLOWS:
Claim 3
Dependent Claim
43 words
A process in accordance with claim 1 which comprises contacting the hydrocarbon charge under said hydrocarbon conversion conditions with a catalyst comprising a zeolite, as defined in said claim 1, that has been activated by heating from at least 700*F to about 1,600*F.
Claim 4
Dependent Claim
163 words
A process in accordance with claim 1 which comprises contacting the hydrocarbon charge under said hydrocarbon conversion conditions with the crystalline aluminosilicate zeolite of said claim characterized by having a selectivity factor of at least 4, which selectivity factor is the weight ratio of o-xylene isomerized to o-xylene disproportionated employing 200 ml. of o-xylene which has been percolated with activated alumina at 2 volumes per volume per hour at 22* + or -3*C and introduced into a 1 liter steel shaker bomb containing 3.0 grams of said zeolite which has been calcined, weighed and dried at 900*F for 1/2 hour, said bomb having been purged with nitrogen and heated after introduction of said o-xylene and said zeolite to 400*F rapidly using an induction furnace while shaking at 200 RPM using an electric driven single cylinder Lawson engine for shaking said bomb until 20 percent of the o-xylene is converted to conversion products at which time said bomb is water quenched and shaking discontinued.
Claim 5
Dependent Claim
42 words
In accordance with claim 1, a process for hydrocracking a hydrocarbon charge which comprises contacting the same in the presence of added hydrogen under hydrocracking conditions, the hydrogen to hydrocarbon ratio being from 1 to 80, with a catalyst comprising said zeolite.
Claim 6
Dependent Claim
42 words
In accordance with claim 2, a process for hydrocracking a hydrocarbon charge which comprises contacting the same in the presence of added hydrogen under hydrocracking conditions, the hydrogen to hydrocarbon ratio being from 1 to 80, with a catalyst comprising said zeolite.
Claim 7
Dependent Claim
42 words
In accordance with claim 3, a process for hydrocracking a hydrocarbon charge which comprises contacting the same in the presence of added hydrogen under hydrocracking conditions, the hydrogen to hydrocarbon ratio being from 1 to 80, with a catalyst comprising said zeolite.
Claim 8
Dependent Claim
32 words
In accordance with claim 1, a process for cracking a hydrocarbon charge in the absence of added hydrogen which comprises contacting the same under cracking conditions with a catalyst comprising said zeolite.
Claim 9
Dependent Claim
32 words
In accordance with claim 2, a process for cracking a hydrocarbon charge in the absence of added hydrogen which comprises contacting the same under cracking conditions with a catalyst comprising said zeolite.
Claim 10
Dependent Claim
32 words
In accordance with claim 3, a process for cracking a hydrocarbon charge in the absence of added hydrogen which comprises contacting the same under cracking conditions with a catalyst comprising said 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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |