US4278564A
Expired / Lapsed
US
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Method for modifying the shape selectivity of ferrierite
Assignee: Mobil Oil AS
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Filing: 1979-10-30
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Granted: 1981-07-14
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Expires: 1999-10-30
Abstract
Abstract A method for modifying the shape selectivity of natural ferrierite in the catalytic conversion of hydrocarbons which comprises contacting the natural ferrierite with oxalic acid. By this method the catalytic properties are enhanced, such that hydrocarbons, other than normals, are able to be cracked selectively.
Inventors
- 👤 Bruce P. Pelrine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:36
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/65; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B01J2229/00; B01J2229/30; B01J2229/37
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
33 words
A method for modifying the shape selectivity of natural ferrierite which comprises first contacting said ferrierite with oxalic acid and then contacting the resultant oxalic acid treated-ferrierite with an aqueous diammonium oxalate solution.
Claim 2
Independent Claim
33 words
A method for modifying the shape selectivity of natural ferrierite which comprises first contacting said ferrierite with oxalic acid and then contacting the resultant oxalic acid treated-ferrierite with an aqueous diammonium oxalate solution.
Claim 3
Independent Claim
71 words
A method for modifying the shape selectivity of natural ferrierite which comprises first contacting said ferrierite with oxalic acid at a temperature between about room temperature and 200° C. for a period between about 1 and 10 days and then contacting the resultant oxalic acid treated-ferrierite with an aqueous diammonium oxalate solution at a temperature between about room temperature and 100° C. for a period between about 1 and 10 days.
Claim 4
Independent Claim
71 words
A method for modifying the shape selectivity of natural ferrierite which comprises first contacting said ferrierite with oxalic acid at a temperature between about room temperature and 200° C. for a period between about 1 and 10 days and then contacting the resultant oxalic acid treated-ferrierite with an aqueous diammonium oxalate solution at a temperature between about room temperature and 100° C. for a period between about 1 and 10 days.
Claim 5
Dependent Claim
15 words
A method according to claim 2 wherein the reaction is conducted in a stirred autoclave.
Claim 6
Dependent Claim
10 words
The catalyst product produced by the method of claim 1.
Claim 7
Dependent Claim
10 words
The catalyst product produced by the method of claim 2.
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) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |