EP0131925A2
Expired / Lapsed
EP
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Metal oxide having uniform pore sizes, the process for producing said metal oxide, and catalyst carrier comprising the said metal oxide
Assignee: Daido Sanso Co Ltd
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Filing: 1984-07-12
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Granted: —
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Expires: 2004-07-12
Abstract
Abstract The metal oxides having a very narrow pore size distribution of micropores within the range of between 10 and 100 Angstroms can be prepared by reacting a water-soluble basic salt of metal hydrate with an organic compound such as an acid halide in a specific manner. The pore diameter of the metal oxide can be arbitrarily controlled within the range of micropore size by changing the molecular chain length of an organic compound, treating with an acid or calcinating at different temperature. It is desirable that the narrow pore size distribution is centered within the range of 1-30 Angstroms, preferably 1-15 Angstroms when the metal oxide is used as a catalyst carrier.
Inventors
- 👤 Tadahiro Wakui
- 👤 Tadahiko Handa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 07:55
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/04; C01F7/14; C01F7/141; C01B; C01B13/00; C01B13/14; C01B13/18; C01B13/36; C01B33/00; C01B33/113; C01B33/12; C01B33/16; C01B33/166; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J21/06; B01J21/08; B01J35/00; B01J35/60; B01J35/61; B01J35/615; B01J35/617; B01J35/63; B01J35/633; B01J35/64; B01J35/643; B01J35/647; B01J35/66; C01P; C01P2006/00; C01P2006/14; C01P2006/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
25 words
A metal oxide having unfirom micropores, the pore size distribution being very narrow and concentrated with the range of substancially between 10 and 100 Angstroms.
Claim 2
Dependent Claim
25 words
A metal oxide having unfirom micropores, the pore size distribution being very narrow and concentrated with the range of substancially between 10 and 100 Angstroms.
Claim 3
Dependent Claim
86 words
A process for producing a metal oxide according to claim 1, that comprises the steps of reacting a basic metal acid salt with an organic compound which is represented by the general formula Xn-R-X'n wherein R is an organic group, X is a reacting group, X' is a reacting group or hydrogen and n is an integer of 1 Iv 3, extracting the resultant solid with an organic solvent and removing the organic solvent from the solid or burning out the solvent by calcinating the solid.
Claim 4
Dependent Claim
88 words
A process for producing a metal oxide having uniform micropores, wherein the metal oxide consists of a metal oxide mixture having a very narrow pore size distribution within the range of between 10 and 100 Angstroms, said process comprising the steps of reacting a basic metal acid salt and an organic compound according to claim 2 with a metal salt each in solution, extracting the resultant solid with an organic solvent and removing the organic solvent from the solid or burning out the solvent by calcinating the solid.
Claim 5
Dependent Claim
28 words
A catalyst carrier comprising a metal oxide having uniform micropores, the pore distribution being very narrow and concentrated within the range of substancially between 10 and 100 Angstroms.
Claim 6
Dependent Claim
28 words
A catalyst carrier comprising a metal oxide having uniform micropores, the pore distribution being very narrow and concentrated within the range of substancially between 10 and 100 Angstroms.
Claim 7
Dependent Claim
19 words
A metal oxide having uniform micropores according to claim 1 wherein said metal oxide is a metal oxide mixture.
Claim 8
Dependent Claim
20 words
A catalyst carrier comprising a metal oxide according to claim 4 wherein said metal oxide is a metal oxide mixture.
Claim 9
Dependent Claim
26 words
A metal oxide having uniform micropores according to claim 1 or claim 5, whrein the width of the pore size distribution is 1 ~ 30 Angstroms.
Claim 10
Dependent Claim
29 words
A process for producing a metal oxide having uniform micropores according to claim 2 or claim 3, wherein the width of a pore distribution is 1 ~ 30 Angstroms.
Claim 11
Dependent Claim
30 words
A catalyst carrier comprising a metal oxide having uniform micropores according to claim 4 or claim 6 wherein the width of the pore size distribution is 1 ~ 30 Angstroms.
References Cited (Backward Citations)
No citation records indexed.
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