US3867313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-free, all metal, catalyst element
Assignee: Universal Oil Products Co
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Filing: 1972-11-01
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Granted: 1975-02-18
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Expires: 1992-11-01
Abstract
Abstract An all metal, high temperature resistant, catalyst element is provided by plating or depositing a noble metal comprising platinum and/or palladium onto a base material which comprises primarily aluminum, chromium and iron. The nickel-free, aluminum containing base material appears to be of advantage for at least certain all metal catalyst element operations and also results in substantially lower first cost catalyst units.
Inventors
- 👤 Gerald L Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:32
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01J23/44; B01J23/70; B01J23/89; B01J23/8933; B01J23/8993; B01J37/00; B01J37/02; B01J37/0215; B01J37/0225; B01J37/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
49 words
AN ALL METAL OXIDATION CATALYST ELEMENT COMPRISING A BASE ELEMENT AND A COATING OF A NOBEL METAL, SAID COATING BEING AT LEAST ONE METAL FROM THE PLATINUM GROUP AND SAID BASE ELEMENT BEING A NICKEL FREE ALLOY CONSISTING ESSENTIALLY OF ALUMINUM, CHROMIUM AND IRON, AND HIGHLY RESISTANT TO HEAT.
Claim 2
Dependent Claim
49 words
AN ALL METAL OXIDATION CATALYST ELEMENT COMPRISING A BASE ELEMENT AND A COATING OF A NOBEL METAL, SAID COATING BEING AT LEAST ONE METAL FROM THE PLATINUM GROUP AND SAID BASE ELEMENT BEING A NICKEL FREE ALLOY CONSISTING ESSENTIALLY OF ALUMINUM, CHROMIUM AND IRON, AND HIGHLY RESISTANT TO HEAT.
Claim 3
Dependent Claim
26 words
The all metal catalyst of claim 1 further characterized in that the noble metal coating on the alloy base element is in a porous, active state.
Claim 4
Dependent Claim
41 words
The all metal catalyst of claim 1 further characterized in that aluminum is present in an amount of from about 3 to about 5 percent, chromium in an amount from 12 to about 25 percent and the balance is essentially iron.
Claim 5
Dependent Claim
21 words
The all metal catalyst of claim 1 further characterized in that said noble metal is electroplated onto said alloy base element.
Claim 6
Dependent Claim
49 words
The catalyst element of claim 1 further characterized in that said element is made of wire or ribbon pieces of said alloy and maintained in the form of a gas permeable mat that is electroplated with a coating of at least one metal from the platinum group of metals.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |