US3884836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for catalytic decomposition of hydrogen
Assignee: Siemens AG
•
Filing: 1973-02-08
•
Granted: 1975-05-20
•
Expires: 1993-02-08
Abstract
Abstract Hydrogen peroxide is decomposed by contacting with a mixed-oxide catalyst comprising oxides of manganese, cobalt, copper, silver and lead.
Inventors
- 👤 Dieter Kuhl
- 👤 Manfredo Marchetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:26
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/89; B01J23/8933; B01J23/8986; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0211; C01B13/0214; H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
58 words
A MIXED-OXIDE CATALYST FOR THE DECOMPOSITION OF HYDROGEN PEROXIDE, COMPRISING OXIDES OF THE FOLLOWING METALS IN THE FOLLOWING METAL PROPORTIONS BETWEEN ABOUT 20 AND 30% BY WEIGHT OF MANGANESE, 4 AND 7% BY WEIGHT OF COBALT, 12 AND 16% BY WEIGHT OF COPPER, 10 AND 13% BY WEIGHT OF SILVER, AND 40 AND 50% BY WEIGHT OF LEAD.
Claim 2
Dependent Claim
58 words
A MIXED-OXIDE CATALYST FOR THE DECOMPOSITION OF HYDROGEN PEROXIDE, COMPRISING OXIDES OF THE FOLLOWING METALS IN THE FOLLOWING METAL PROPORTIONS BETWEEN ABOUT 20 AND 30% BY WEIGHT OF MANGANESE, 4 AND 7% BY WEIGHT OF COBALT, 12 AND 16% BY WEIGHT OF COPPER, 10 AND 13% BY WEIGHT OF SILVER, AND 40 AND 50% BY WEIGHT OF LEAD.
Claim 3
Dependent Claim
56 words
The catalyst according to claim 1 wherein the weight proportions of the metal content of said oxides is between about 22 and 26% by weight of manganese, 5 and 6% by weight of cobalt, 13 and 15% by weight of copper, 11 and 12% by weight of silver, and 42 and 47% by weight of lead.
Claim 4
Dependent Claim
45 words
The catalyst according to claim 1, wherein the weight proportions of the metal content of said oxides is about 24.0% by weight of manganese, 5.5% by weight of cobalt, 14.4% by weight of copper, 11.5% by weight of silver and 44.6% by weight of lead.
Claim 5
Dependent Claim
14 words
The catalyst according to claim 1 wherein the catalyst is on a carrier material.
Claim 6
Dependent Claim
14 words
The catalyst according to claim 2 wherein the catalyst is on a carrier material.
Claim 7
Dependent Claim
17 words
The catalyst according to claim 4, wherein said carrier material is a ceramic material comprising aluminum oxide.
Claim 8
Dependent Claim
17 words
The catalyst according to claim 5, wherein said carrier material is a ceramic material comprising aluminum oxide.
Claim 9
Dependent Claim
13 words
The catalyst according to claim 6, wherein said carrier material includes aluminum silicate.
Claim 10
Dependent Claim
13 words
The catalyst according to claim 7, wherein said carrier material includes aluminum silicate.
Claim 11
Dependent Claim
22 words
The catalyst according to claim 4, wherein the carrier material is porous and is provided with holes in addition to the pores.
Claim 12
Dependent Claim
22 words
The catalyst according to claim 5, wherein the carrier material is porous and is provided with holes in addition to the pores.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |