Patent USRE35166E successfully refreshed from Google Patents.
USRE35166E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst
Assignee: Unilever Patent Holdings BV
•
Filing: 1994-05-10
•
Granted: 1996-03-05
•
Expires: 2014-05-10
Abstract
Abstract The invention provides a catalyst composition useful in treating hydrocarbons contaminated with vanadium residues, the catalyst comprising a zeolite, a matrix and certain heavier alkaline earth metal oxides.
Inventors
- 👤 Paul Chapple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:46
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/088; B01J29/16; B01J29/166; B01J2229/00; B01J2229/30; B01J2229/42; Y; Y10; Y10S; Y10S502/00; Y10S502/521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A method of cracking vanadium containing hydrocarbon feedstocks wherein the feedstock is contacted with a catalyst composition comprising: (i) a crystalline zeolite, (ii) a matrix material, and (iii) a single phase crystalline mixed oxide selected from calcium and barium tin oxides, the strontium tin oxides Sr 2 SnO 4 and Sr 3 Sn 2 O 7 , strontium titanium oxides and .[.the barium titanium oxides BaTi 2 O 5 , BaTi 4 O 9 , BaTi 5 O 11 , Ba 2 TiO 4 , Ba 2 Ti 5 O 12 , Ba 2 Ti 9 O 20 , Ba 4 Ti 13 O 30 , and Ba 6 Ti 17 O 40 , and.]. mixtures thereof.
Claim 2
Independent Claim
117 words
A method of cracking vanadium containing hydrocarbon feedstocks wherein the feedstock is contacted with a catalyst composition comprising: (i) a crystalline zeolite, (ii) a matrix material, and (iii) a single phase crystalline mixed oxide selected from calcium and barium tin oxides, the strontium tin oxides Sr 2 SnO 4 and Sr 3 Sn 2 O 7 , strontium titanium oxides and .[.the barium titanium oxides BaTi 2 O 5 , BaTi 4 O 9 , BaTi 5 O 11 , Ba 2 TiO 4 , Ba 2 Ti 5 O 12 , Ba 2 Ti 9 O 20 , Ba 4 Ti 13 O 30 , and Ba 6 Ti 17 O 40 , and.]. mixtures thereof.
References Cited (Backward Citations)
US2866513A
Cited
US3985641A
Cited
US4179409A
Cited
US4520120A
Cited
US4810358A
Cited
US4944864A
Cited
US4770765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-05 | 1999-09-04 | 2000-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-05 | 2003-09-04 | 2004-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-05 | 2007-09-04 | 2008-03-05 | $7700.00 | Window Closed / Lapsed |