US4276199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported molybdenum/tungsten compositions
Assignee: Shell USA Inc
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Filing: 1980-07-21
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Granted: 1981-06-30
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Expires: 2000-07-21
Abstract
Abstract Novel compositions are prepared by impregnating inert supports with H 4 Mo(CN) 8 and/or H 4 W(CN) 8 and subsequently activating by heating in an inert environment at about 400°-600° C. The materials, particularly when supported on aluminous or siliceous supports, are useful as catalysts for simultaneously isomerizing and disproportionating olefins.
Inventors
- 👤 Ronald J. Hoxmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:37
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/08; C01C3/11; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/2226; C07C6/00; C07C6/02; C07C6/04; C01P; C01P2002/00; C01P2002/80; C01P2002/87; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A compositon prepared by impregnating a porous, inert support with an aqueous solution of H 4 Mo(CN) 8 , H 4 W(CN) 8 or mixtures thereof, drying the impregnated support and calcining the impregnated support in a non-oxidizing environment at a temperature ranging from about 400° to about 600° C.
Claim 2
Dependent Claim
50 words
A compositon prepared by impregnating a porous, inert support with an aqueous solution of H 4 Mo(CN) 8 , H 4 W(CN) 8 or mixtures thereof, drying the impregnated support and calcining the impregnated support in a non-oxidizing environment at a temperature ranging from about 400° to about 600° C.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein the support is alumina, silica or mixtures thereof.
Claim 4
Dependent Claim
16 words
The composition of claims 1 or 2 where the support is calcined in a nitrogen environment.
Claim 5
Dependent Claim
46 words
A process for preparing a molybdenum-and/or tungsten-containing composition which process comprises impregnating a porous, inert support with an aqueous solution of H 4 Mo(CN) 8 , H 4 W(CN) 8 or mixtures thereof, drying the impregnated support and calcining the impregnated support in a non-oxidizing environment.
Claim 6
Dependent Claim
46 words
A process for preparing a molybdenum-and/or tungsten-containing composition which process comprises impregnating a porous, inert support with an aqueous solution of H 4 Mo(CN) 8 , H 4 W(CN) 8 or mixtures thereof, drying the impregnated support and calcining the impregnated support in a non-oxidizing environment.
Claim 7
Dependent Claim
14 words
The process of claim 4 wherein the support is alumina, silica, or mixtures thereof.
Claim 8
Dependent Claim
51 words
The process of claim 4 wherein the H 4 Mo(CN) 8 or H 4 W(CN) 8 is prepared from the corresponding alkali metal cyanide, M 4 Mo(CN) 8 (where M=Li, Na, K, Rb or Cs) by ion exchanging said cyanide with the hydrogen form of a strong acid ion exchange resin.
Claim 9
Dependent Claim
15 words
The process of claim 6 wherein the ion exchange resin is sulfonated styrene-divinyl benzene resin.
Claim 10
Dependent Claim
18 words
The process of claims 4, 5, 6 or 7 wherein the support is calcined in a nitrogen environment.
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) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |