US3615215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Raney catalyst for generating hydrogen by decomposition of boranes
Assignee: VARTA AG
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Filing: 1969-12-08
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Granted: 1971-10-26
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Expires: 1989-12-08
Abstract
Abstract Hydrogen is generated by catalytic decomposition of boron hydrides in the presence of a Raney catalyst having from 10 to 97.5 percent by weight of nickel and from 2.5 to 90 percent by weight of iron in the crystal lattice.
Inventors
- 👤 Hans Von Dohren
- 👤 Andreas Basch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:46
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C01; C01B; C01B3/00; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
The process of claim 1, wherein the iron content in the Raney catalyst is between 10 and 15%.
Claim 2
Dependent Claim
28 words
The process of claim 1, wherein the catalyst is in the form of a catalyst body having a double skeleton structure by being embedded in a metallic matrix.
Claim 3
Dependent Claim
13 words
The process of claim 1, wherein the water-soluble borane is an alkali borane.
Claim 4
Dependent Claim
12 words
The process of claim 4, wherein the alkali borane is sodium borane.
Claim 5
Dependent Claim
44 words
The process of claim 1, wherein sodium borane is employed in a concentration of about 15 wt. % and the iron contents of the catalyst is about 10 to 15 wt. % and the grain size of the catalyst is about 100 Mu .
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |