US4650781A
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Alkali promoted manganese oxide compositions containing zirconium
Assignee: Atlantic Richfield Co
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Filing: 1984-12-18
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Granted: 1987-03-17
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Expires: 2004-12-18
Abstract
Abstract A class of mixed oxide catalysts comprising Mn-containing oxides, alkali metals or compounds thereof, and at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si, and mixed oxides of Zr and at least one alkaline earth metal. In the more preferred embodiments, the third component serves as a carrier for the Mn and alkaline metal components. The composition preferably comprises a major amount of the carrier material and minor amounts of the other components. The compositions are useful for hydrocarbon conversion, methane conversion, and oxidative dehydrogenation processes characterized by formation of coproduct water.
Inventors
- 👤 C. Andrew Jones
- 👤 John A. Sofranko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; B; B01; B01J; B01J23/00; B01J23/08; B01J23/14; B01J23/16; B01J23/18; B01J23/32; B01J23/34; B01J27/00; B01J27/14; B01J27/16; B01J27/18; C07C2521/00; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/08; C07C2523/14; C07C2523/16; C07C2523/18; C07C2523/32; C07C2523/34; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
95 words
A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si; and mixed oxides of Zr and at least one alkaline earth metal, wherein the amount of Mn present is within the range of about 1 to 40 wt. % based on the combined weight of Mn and component (c) and wherein the atomic ratio of alkali metal: Mn is within the range of about 0.01 to 10:1.
Claim 2
Dependent Claim
95 words
A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si; and mixed oxides of Zr and at least one alkaline earth metal, wherein the amount of Mn present is within the range of about 1 to 40 wt. % based on the combined weight of Mn and component (c) and wherein the atomic ratio of alkali metal: Mn is within the range of about 0.01 to 10:1.
Claim 3
Dependent Claim
13 words
The composition of claim 1 which is substantially free of catalytically effective iron.
Claim 4
Dependent Claim
32 words
The composition of claim 1 wherein the amount is Mn present is within the range of about 5 to 30 wt. %, based on the combined weight of Mn and component (c).
Claim 5
Dependent Claim
40 words
A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) mixed oxides of Zr and at least one alkaline earth metal, said composition being substantially free of catalytically effective iron.
Claim 6
Dependent Claim
40 words
A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) mixed oxides of Zr and at least one alkaline earth metal, said composition being substantially free of catalytically effective iron.
Claim 7
Dependent Claim
54 words
A catalyst composition satisfying the formula: MnA.sub.a Zr.sub.b O.sub.x wherein A is at least one alkali metal and wherein a is within the range of about 0.01 to 10, b is within the range of about 1-45, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 8
Dependent Claim
54 words
A catalyst composition satisfying the formula: MnA.sub.a Zr.sub.b O.sub.x wherein A is at least one alkali metal and wherein a is within the range of about 0.01 to 10, b is within the range of about 1-45, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 9
Dependent Claim
9 words
The composition of claim 5 wherein A is sodium.
Claim 10
Dependent Claim
16 words
The composition of claim 6 wherein a is within the range of about 0.1 to 3.3.
Claim 11
Dependent Claim
9 words
The composition of claim 5 wherein A is lithium.
Claim 12
Dependent Claim
9 words
The composition of claim 5 wherein A is potassium.
Claim 13
Dependent Claim
16 words
The composition of claim 5 wherein b is within the range of about 1 to 9.
Claim 14
Dependent Claim
13 words
The composition of claim 5 which is substantially free of catalytically effective iron.
Claim 15
Dependent Claim
86 words
A catalyst composition satisfying the formula: MnA.sub.a Zr.sub.b Si.sub.c O.sub.x wherein A is at least one alkali metal and wherein a is within the range of about 0.01 to 10, b is within the range of about 0.2 to 45, c is within the range of about 0.4 to 45, the ratio of b:c is within the range of about 0.01-100:1, the sum of b+c is greater than 1, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 16
Dependent Claim
86 words
A catalyst composition satisfying the formula: MnA.sub.a Zr.sub.b Si.sub.c O.sub.x wherein A is at least one alkali metal and wherein a is within the range of about 0.01 to 10, b is within the range of about 0.2 to 45, c is within the range of about 0.4 to 45, the ratio of b:c is within the range of about 0.01-100:1, the sum of b+c is greater than 1, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 17
Dependent Claim
27 words
The composition of claim 12 wherein b is within the range of about 1 to 45 and c is within the range of about 2 to 17.
Claim 18
Dependent Claim
16 words
The composition of claim 13 wherein b is within the range of about 1 to 9.
Claim 19
Dependent Claim
9 words
The composition of claim 12 wherein A is sodium.
Claim 20
Dependent Claim
16 words
The composition of claim 15 wherein a is within the range of about 0.1 to 3.3.
Claim 21
Dependent Claim
9 words
The composition of claim 12 wherein A is lithium.
Claim 22
Dependent Claim
9 words
The composition of claim 12 wherein A is potassium.
Claim 23
Dependent Claim
13 words
The composition of claim 12 which is substantially free of catalytically effective iron.
Claim 24
Dependent Claim
97 words
A catalyst composition satisfying the formula: MnA.sub.a B.sub.b Zr.sub.c O.sub.x wherein A is at least one alkali metal, B is at least one alkaline earth metal, and wherein a is within the range of about 0.01 to 10, b is within the range of about 0.1 to 90, c is within the range of about 0.2 to 45, the ratio of b:c is within the range of about 0.1 to 100:1, the sum of b+c is greater than about 1, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 25
Dependent Claim
97 words
A catalyst composition satisfying the formula: MnA.sub.a B.sub.b Zr.sub.c O.sub.x wherein A is at least one alkali metal, B is at least one alkaline earth metal, and wherein a is within the range of about 0.01 to 10, b is within the range of about 0.1 to 90, c is within the range of about 0.2 to 45, the ratio of b:c is within the range of about 0.1 to 100:1, the sum of b+c is greater than about 1, and x is the number of oxygen atoms required by the valence states of the other elements.
Claim 26
Dependent Claim
9 words
The composition of claim 20 wherein B is Mg.
Claim 27
Dependent Claim
16 words
The composition of claim 21 wherein b is within the range of about 0.6 to 10.
Claim 28
Dependent Claim
9 words
The composition of claim 20 wherein B is Ca.
Claim 29
Dependent Claim
16 words
The composition of claim 23 wherein b is within the range of about 0.4 to 10.
Claim 30
Dependent Claim
9 words
The composition of claim 20 wherein B is Ba.
Claim 31
Dependent Claim
16 words
The composition of claim 25 wherein b is within the range of about 0.1 to 5.
Claim 32
Dependent Claim
9 words
The composition of claim 20 wherein A is sodium.
Claim 33
Dependent Claim
16 words
The method of claim 27 wherein a is within the range of about 0.1 to 3.3.
Claim 34
Dependent Claim
9 words
The composition of claim 20 wherein A is lithium.
Claim 35
Dependent Claim
9 words
The composition of claim 20 wherein A is potassium.
References Cited (Backward Citations)
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