Patent US4622311A successfully refreshed from Google Patents.
US4622311A
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US
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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: Individual
•
Filing: 1984-07-13
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Granted: 1986-11-11
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Expires: 2004-07-13
Abstract
Abstract 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 a 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 a 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
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:24
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: 16
Claim 1
Independent Claim
165 words
A process for producing a metal oxide comprising the steps of: (a) reacting (i) a salt selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acentonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide obtained has unifrom micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstrons.
Claim 2
Dependent Claim
165 words
A process for producing a metal oxide comprising the steps of: (a) reacting (i) a salt selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acentonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide obtained has unifrom micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstrons.
Claim 3
Dependent Claim
18 words
A process as in claim 1, wherein the organic compound is an acid halide of a dicarboxylic acid.
Claim 4
Dependent Claim
17 words
A process as in claim 1, wherein the width of the pore size distribution is 1-10 Angstroms.
Claim 5
Dependent Claim
193 words
A process for producing a metal oxide mixture comprising the steps of: (a) reacting (i) a salt of a first metal selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3, and (iii) a salt of a second metal selected from the group consisting of nitrates, halides and sulfonates of aluminum and silicon; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide mixture obtained has uniform micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 6
Dependent Claim
193 words
A process for producing a metal oxide mixture comprising the steps of: (a) reacting (i) a salt of a first metal selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3, and (iii) a salt of a second metal selected from the group consisting of nitrates, halides and sulfonates of aluminum and silicon; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide mixture obtained has uniform micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 7
Dependent Claim
18 words
A process as in claim 4, wherein the organic compound is an acid halide of a dicarboxylic acid.
Claim 8
Dependent Claim
17 words
A process as in claim 4, wherein the width of the pore size distribution is 1-30 Angstroms.
Claim 9
Dependent Claim
165 words
A metal oxide produced by a process comprising the steps of: (a) reacting (i) a salt selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide obtained has unifrom micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 10
Dependent Claim
165 words
A metal oxide produced by a process comprising the steps of: (a) reacting (i) a salt selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide obtained has unifrom micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 11
Dependent Claim
19 words
A metal oxide as in claim 7, wherein the organic compound is an acid halide of a diacarboxylic acid.
Claim 12
Dependent Claim
18 words
A metal oxide as in claim 7, wherein the width of the pore size distribution is 1-30 Angstoms.
Claim 13
Dependent Claim
193 words
A metal oxide mixture produced by the process comprising the steps of: (a) reacting (i) a salt of a first metal selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3, and (ii) a salt of a second metal selected from the group consisting of nitrates, halides and sulfonates of aluminum and silicon; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide mixture obtained has uniform micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 14
Dependent Claim
193 words
A metal oxide mixture produced by the process comprising the steps of: (a) reacting (i) a salt of a first metal selected from the group consisting of alkali metal salts and ammonium salts of aluminates and silicates with (ii) an organic compound represented by the formula X.sub.n -R-X'.sub.n wherein R is an alkyl, alkenyl, cycloalkyl, allyl, aromatic group, or heteroaromatic group having up to 30 carbon atoms, X and X' are functional groups which are the same or different, and each is acid halide, sulfonyl halide, isocyanate, epoxy, ester, chloro, bromo or iodo, and n is an integer from 1 to 3, and (ii) a salt of a second metal selected from the group consisting of nitrates, halides and sulfonates of aluminum and silicon; (b) extracting the resultant solid with an organic solvent selected from the group consisting of tetrahydrofuran, alcohols, dimethylformamide, dimethylacetoamide, dimethyl sulfoxide, ketones, acetonitrile, methylene chloride, chloroform and aromatic solvents; and (c) removing the organic solvent from the solid or burning out the solvent by calcinating the solid; whereby the metal oxide mixture obtained has uniform micropores with a pore size distribution concentrated substantially within the range of 10-100 Angstroms.
Claim 15
Dependent Claim
20 words
A metal oxide mixture as in claim 10, wherein the organic compound is an acid halide of a dicarboxylic acid.
Claim 16
Dependent Claim
19 words
A metal oxide mixture as in claim 10, wherein the width of the pore size distribution is 1-30 Angstroms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |