US3980583A
Expired / Lapsed
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Complexed metals bonded to inorganic oxides
Assignee: Mobil Oil AS
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Filing: 1974-02-19
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Granted: 1976-09-14
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Expires: 1994-02-19
Abstract
Abstract Complexed metals bonded to inorganic oxides are a new class of heterogeneous catalysts which display high upper reaction temperature limits, exceptional chemical and thermal stability and good catalytic activity for organic compound conversion. The catalyst of this invention comprises a substrate having a minimum surface area of about 10 m2/g and having pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member coordinated to a metal function, said amine functional member acting as a bridging member between said substrate and said metal function.
Inventors
- 👤 Thomas Owen Mitchell
- 👤 Darrell Duayne Whitehurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:39
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J31/1625; B01J31/1633; B01J31/18; B01J31/1805; B01J37/00; B01J37/02; B01J37/0215; B01J37/0219; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/32; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/821; B01J2531/822; B01J35/00; B01J35/60; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2529/00; C07C2529/04; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
A catalytic material which comprises a substrate of a porous refractory oxide, said substrate having surface hydroxyl groups, a minimum surface area of about 10 m 2 /g and pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member, containing the element silicon, coordinated to a metal function of a transition metal selected from the group consisting of Group VIII metals of the Periodic Table of Elements, said amine functional member acting as a bridging member between said substrate and said metal function, as a ligand covalently bonded to said substrate.
Claim 2
Dependent Claim
103 words
A catalytic material which comprises a substrate of a porous refractory oxide, said substrate having surface hydroxyl groups, a minimum surface area of about 10 m 2 /g and pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member, containing the element silicon, coordinated to a metal function of a transition metal selected from the group consisting of Group VIII metals of the Periodic Table of Elements, said amine functional member acting as a bridging member between said substrate and said metal function, as a ligand covalently bonded to said substrate.
Claim 3
Dependent Claim
29 words
The material of claim 1 wherein said substrate has a minimum surface area of about 200 m 2 /g and has a minimum pore diameter of 100 Angstrom Units.
Claim 4
Dependent Claim
17 words
The material of claim 1 wherein said refractory oxide has a major component of silica or alumina.
Claim 5
Dependent Claim
47 words
The material of claim 1 wherein said refractory oxide is selected from the group consisting of alumina, silica, silica combined with an oxide of a metal of Groups IIA, IIIA, IVA, IIIB, IVB or VB of the Periodic Table of Elements, open lattice clays and crystalline aluminosilicates.
Claim 6
Dependent Claim
35 words
The material of claim 4 wherein said refractory oxide is silica or silica combined with an oxide of a metal of Groups IIA, IIIA, IVA, IIIB, IVB or VB of the Periodic Table of Elements.
Claim 7
Dependent Claim
13 words
The material of claim 4 wherein said refractory oxide is a crystalline aluminosilicate.
Claim 8
Dependent Claim
13 words
The material of claim 6 wherein said crystalline aluminosilicate is a synthetic zeolite.
Claim 9
Dependent Claim
13 words
The material of claim 6 wherein said crystalline aluminosilicate is a natural zeolite.
Claim 10
Dependent Claim
11 words
The material of claim 5 wherein said refractory oxide is alumina.
Claim 11
Dependent Claim
18 words
The material of claim 1 wherein said substrate is silica and said metal function is rhodium or ruthenium.
Claim 12
Dependent Claim
20 words
The material of claim 1 wherein said amine functional member is selected from the group consisting of N-(β-aminoethyl)-γ-aminopropyltrimethoxsilane and N-(β-aminoethyl)-γ-aminopropyltriethoxysilane.
References Cited (Backward Citations)
SU186406A1
Cited
US3221002A
Cited
US3389092A
Cited
US3674705A
Cited
US3725306A
Cited
US3839385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |