US4546091A
Expired / Lapsed
US
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Catalysts
Assignee: British Gas PLC
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Filing: 1984-05-10
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Granted: 1985-10-08
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Expires: 2004-05-10
Abstract
Abstract A catalyst composition, suitable for steam reforming or methanation reactions, comprising a Feitknecht compound intermixed with or interstratified with and bonded with phyllosilicate layers of a clay mineral such as kaolin or benotonite. Conventional catalyst formulations can be modified so as produced catalysts have good dispersion of the catalytic sites.
Inventors
- 👤 Christine M. Sheppard
- 👤 David C. Puxley
- 👤 Reginald G. S. Banks
- 👤 Donald McKenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:37
CPC Classifications
B; B01; B01J; B01J21/00; B01J23/00; B01J23/70; B01J23/76; B01J21/16; B01J23/007; B01J23/74
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
66 words
A catalyst composition comprising interstratified layers of a coprecipitated Feitknecht compound and a clay mineral containing phyllosilicate layers, said Feitknecht compound having the general formula: Me.sup.2+ Me.sup.3+ (OH).sub.2x+3y-2z (A.sup.2-).sub.z.nH.sub.2 O wherein Me 2+ is a divalent metal cation; Me 3+ is trivalent metal cation; A 2- is either a single divalent anion or two monovalent anions, and the ratio of x/y is between 1.5/1 to 4/1.
Claim 2
Dependent Claim
66 words
A catalyst composition comprising interstratified layers of a coprecipitated Feitknecht compound and a clay mineral containing phyllosilicate layers, said Feitknecht compound having the general formula: Me.sup.2+ Me.sup.3+ (OH).sub.2x+3y-2z (A.sup.2-).sub.z.nH.sub.2 O wherein Me 2+ is a divalent metal cation; Me 3+ is trivalent metal cation; A 2- is either a single divalent anion or two monovalent anions, and the ratio of x/y is between 1.5/1 to 4/1.
Claim 3
Dependent Claim
20 words
A catalyst as claimed in claim 1 wherein Me 2+ and Me 3+ each comprise one or more metal species.
Claim 4
Dependent Claim
15 words
A catalyst as claimed in claim 2 in which Me 2+ is a transition metal.
Claim 5
Dependent Claim
27 words
A catalyst as claimed in claim 1, 2 or 3 in which Me 2+ is nickel (II) and/or magnesium and Me 3+ is aluminium or chromium (III).
Claim 6
Dependent Claim
23 words
A catalyst as claimed in claim 1, 2 or 3 in which A 2- is the carbonate ion or two hydrogen carbonate ions.
Claim 7
Dependent Claim
17 words
A catalyst as claimed in claim 1, 2 or 3 in which the clay is a Smectite.
Claim 8
Dependent Claim
13 words
A catalyst as claimed in claim 6 in which the clay is bentonite.
Claim 9
Dependent Claim
17 words
A catalyst as claimed in claims 1, 2 or 3 in which the clay is a kaolin.
Claim 10
Dependent Claim
35 words
A catalyst composition as set forth in claim 1 wherein Me 2+ is a divalent ion selected from the group consisting of divalent ions of Group VIII, VIIb, II and I metals and mixtures thereof.
Claim 11
Dependent Claim
34 words
A catalyst composition as set forth in claim 1 where Me 3+ is a trivalent ion selected from the group consisting of trivalent ions of Group VIII, VI and II metals and mixtures thereof.
Claim 12
Dependent Claim
34 words
A catalyst composition as set forth in claim 9 where Me 3+ is a trivalent ion selected from the group consisting of trivalent ions of Group VIII, VI and II metals and mixtures thereof.
Claim 13
Dependent Claim
25 words
A catalyst composition as set forth in claim 11 where said Feitknecht compound is Ni 6 Al 2 (0H) 16 (CO 3 ).4H 2 O.
Claim 14
Dependent Claim
23 words
A catalyst composition as set forth in claim 11 wherein at least one of Me 2+ and Me 3+ is a transition metal.
Claim 15
Dependent Claim
50 words
A catalyst composition as set forth in claim 1 where A 2- is an anion selected from the group consisting of CO 3 - , (HCO 3 - ) 2 , SO 4 , (NO 3 - ) 2 , (Cl - ) 2 and (BR - ) 2 .
Claim 16
Dependent Claim
50 words
A catalyst composition as set forth in claim 11 where A 2- is an anion selected from the group consisting of CO 3 - , (HCO 3 - ) 2 , SO 4 , (NO 3 - ) 2 , (Cl - ) 2 and (Br - ) 2 .
References Cited (Backward Citations)
GB1068809A
Cited
GB1206131A
Cited
GB1336866A
Cited
US3932534A
Cited
GB1462060A
Cited
DE2461482A1
Cited
GB1509557A
Cited
US4250060A
Cited
GB1561629A
Cited
US4046869A
Cited
GB1573706A
Cited
US4185967A
Cited
US4216123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |