US4507401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermetallic catalyst preparation
Assignee: Nokia Bell Labs
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Filing: 1983-04-01
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Granted: 1985-03-26
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Expires: 2003-04-01
Abstract
Abstract Supported intermetallic compounds are produced by a two-step process. In the first step, a supported metal is formed, for example, by solvating a metallic salt such as nickel nitrate and applying it to a support medium. The treated support body is then heated in the presence of a reducing agent to produce elemental metal. The supported metal is then treated with a reactive organometallic or metal hydride compound to yield a supported intermetallic compound. For example, supported elemental nickel is treated with hexamethyldisilane to produce supported nickel silicide.
Inventors
- 👤 Lawrence H. Dubois
- 👤 Ralph G. Nuzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:41
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/835; B01J23/38; B01J23/40; B01J23/54; B01J23/56; B01J23/62; B01J23/74; B01J23/825; B01J37/00; B01J37/08; B01J37/082; B01J37/086; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
70 words
A process for making a catalyst comprising the steps of: (a) forming a Group VIII-containing composition on a support and (b) contacting the Group VIII-containing support with a metal hydride or organometallic compound at a temperature sufficient to form an intermetallic compound wherein the metal hydride or organometallic compound contains at least one metal atom selected from the group consisting essentially of silicon, germanium, aluminum, boron, gallium, indium, and tin.
Claim 2
Dependent Claim
70 words
A process for making a catalyst comprising the steps of: (a) forming a Group VIII-containing composition on a support and (b) contacting the Group VIII-containing support with a metal hydride or organometallic compound at a temperature sufficient to form an intermetallic compound wherein the metal hydride or organometallic compound contains at least one metal atom selected from the group consisting essentially of silicon, germanium, aluminum, boron, gallium, indium, and tin.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein said metal hydride is chosen from the group consisting of silanes and germanes.
Claim 4
Dependent Claim
19 words
The process of claim 1 wherein said organometallic material is chosen from the group consisting of disilanes and digermanes.
Claim 5
Dependent Claim
12 words
The process of claim 3 wherein said disilanes comprise lower alkyl disilanes.
Claim 6
Dependent Claim
10 words
The process of claim 4 wherein said dislanes comprise hexamethyldisilane.
Claim 7
Dependent Claim
12 words
The process of claim 3 wherein said digermanes comprise lower alkyl digermanes.
Claim 8
Dependent Claim
10 words
The process of claim 6 wherein said digermanes comprise hexamethyldigermane.
Claim 9
Dependent Claim
13 words
The process of claim 7 wherein said Group VIII containing material comprises nickel.
Claim 10
Dependent Claim
30 words
The process of claim 6 wherein said Group VIII containing material comprises a member chosen from the group consisting of iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, and platinum.
Claim 11
Dependent Claim
21 words
The process of claim 1 wherein said supporting body comprises a member chosen from the group consisting of silica and alumina.
Claim 12
Dependent Claim
20 words
The process of claim 1 wherein said supporting body has a surface area of at least 10 m 2 /gm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |