Patent US4353709A successfully refreshed from Google Patents.
Patent US4804647A successfully refreshed from Google Patents.
US4804647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewaxing catalysts and processes employing titanoaluminosilicate molecular sieves
Assignee: Katalistiks International Inc
•
Filing: 1987-05-06
•
Granted: 1989-02-14
•
Expires: 2007-05-06
Abstract
Abstract Dewaxing processes for hydrocarbon feedstocks are disclosed using novel catalysts comprising titanoaluminosilicates. The products of the instant dewaxing processes are characterized by lower pour points than the hydrocarbon feedstock.
Inventors
- 👤 Regis J. Pellet
- 👤 Frank P. Gortsema
- 👤 Gary N. Long
- 👤 Jule A. Rabo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:16
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/89; C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
120 words
A catalyst comprising: an effective amount of at least one TASO characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20° C. and is further characterized in its calcined form by an adsorption of triethylamine of less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22° C.; and an effective amount of at least one metal selected from the group consisting of nickel, cobalt, tungsten, molybdenum, platinum, palladium, chromium, rhodium, ruthenium and titanium, and at least one zeolitic aluminosilicate selected from the group consisting of Y zeolite, ultra-stable Y-type zeolite, LZ-210, LZ-10, and mixtures thereof.
Claim 2
Dependent Claim
120 words
A catalyst comprising: an effective amount of at least one TASO characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20° C. and is further characterized in its calcined form by an adsorption of triethylamine of less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22° C.; and an effective amount of at least one metal selected from the group consisting of nickel, cobalt, tungsten, molybdenum, platinum, palladium, chromium, rhodium, ruthenium and titanium, and at least one zeolitic aluminosilicate selected from the group consisting of Y zeolite, ultra-stable Y-type zeolite, LZ-210, LZ-10, and mixtures thereof.
Claim 3
Dependent Claim
43 words
The catalyst of claim 1 wherein said catalyst contains at least one zeolitic aluminosilicate having cracking activity and selected from the group consisting of zeolite Y, ultra-stable Y zeolite, zeolite X, silicalite zeolite beta, zeolite KZ-20, faujasite, LZ-210, LZ-10, ZSM-5 and mixtures thereof.
Claim 4
Dependent Claim
25 words
The catalyst of claim 2 wherein said catalyst contains an inorganic oxide matrix in an amount between about 1 and about 99 percent by weight.
Claim 5
Dependent Claim
28 words
The catalyst of claim 3 wherein the inorganic oxide matrix is selected from the group consisting of clays, silicas, aluminas, silica-aluminas, silica-zirconias, silica-magnesia, alumina-borias, alumina-titanias and mixtures thereof.
Claim 6
Dependent Claim
22 words
The catalyst of claim 1 wherein said TASO is selected from the group consisting of TASO-48, TASO-49, TASO-45, LZ-241 and mixtures thereof.
Claim 7
Dependent Claim
10 words
The catalyst of claim 5 wherein the TASO is TASO-45.
Claim 8
Dependent Claim
39 words
The catalyst of claim 1 wherein said metal is selected from the group consisting of Pt, Pd, Rh, Ru and mixtures thereof and is present in an effective amount between about 0.05 weight percent and about 1.5 weight percent.
Claim 9
Dependent Claim
18 words
The catalyst of claim 7 wherein said effective amount is between about 0.3 and about 1.2 weight percent.
Claim 10
Dependent Claim
41 words
The catalyst of claim 1 wherein said metal is selected from the group consisting of Ni, W, Mo, Co, Ti, Cr and mixtures thereof and is present in an effective amount between about 0.1 weight percent and about 30 weight percent.
References Cited (Backward Citations)
US28398A
Cited
US3140249A
Cited
US3140252A
Cited
US3140251A
Cited
US3140253A
Cited
US3700585A
Cited
USRE28398E
Cited
US3852189A
Cited
US3968024A
Cited
US3956102A
Cited
US3980550A
Cited
US4153540A
Cited
US4176050A
Cited
US4222855A
Cited
US4229282A
Cited
US4247388A
Cited
US4441991A
Cited
US4446007A
Cited
US4428826A
Cited
US4707345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |