US4354960A
Expired / Lapsed
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Process for the production of boron-containing nickel-aluminum oxide catalysts
Assignee: Bergwerksverband GmbH
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Filing: 1980-03-03
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Granted: 1982-10-19
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Expires: 2000-03-03
Abstract
Abstract Process for the production of boron-containing nickel-aluminum oxide catalysts. Solutions containing nickel and aluminum are reacted with aqueous sodium borohydride. Precipitation occurs, followed by drying and compressing the resultant precipitate into catalyst shapes. The precipitation may occur in the presence of metallic promoter salts. The catalysts are used for the methanization of carbon monoxide by hydrogen. Good results and long catalyst life are furthered by methanizing a mixture of H 2 :CO of about 3:1 by volume, at an operating pressure between about 40-45 bar, and a spatial velocity between about 2×10 4 to 10 5 h -1 .
Inventors
- 👤 Hans Hammer
- 👤 Heinz Jacobi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:08
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/06; C10L3/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0485; C10K; C10K3/00; C10K3/02; C10K3/04; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/16; C07C2523/20; C07C2523/22; C07C2523/24; C07C2523/26; C07C2523/28; C07C2523/30; C07C2523/32; C07C2523/34; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/745; C07C2523/75; C07C2523/755
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
54 words
A process for the production of boron-containing nickel-aluminum oxide catalysts, comprising the steps of reacting solutions containing nickel and aluminum, with aqueous sodium borohydride and forming a precipitate while cooling to about 0° C., and maintaining a pH value of about 7 to 10, and drying and compressing the resultant precipitate into catalyst shapes.
Claim 2
Dependent Claim
54 words
A process for the production of boron-containing nickel-aluminum oxide catalysts, comprising the steps of reacting solutions containing nickel and aluminum, with aqueous sodium borohydride and forming a precipitate while cooling to about 0° C., and maintaining a pH value of about 7 to 10, and drying and compressing the resultant precipitate into catalyst shapes.
Claim 3
Dependent Claim
17 words
The process of claim 1, wherein said precipitation takes place in the presence of metallic promoter salts.
Claim 4
Dependent Claim
26 words
The process of claim 2, wherein said metallic promoter salts are salts of tungsten, molybdenum, chromium, magnesium, uranium, barium, copper, iron, manganese, vanadium, strontium or calcium.
Claim 5
Dependent Claim
28 words
The process of claim 2, wherein said metallic promoter salts are present in the dried catalyst in quantities up to about 2% by weight relative to the metals.
Claim 6
Dependent Claim
18 words
The process of claim 1, wherein during precipitation a pH value of about 9 to 9.5 is maintained.
Claim 7
Dependent Claim
23 words
The process of claim 1, further comprising activating said catalysts by means of a hydrogen stream at 1-50 bar and at 300°-400° C.
Claim 8
Dependent Claim
15 words
The process of claim 6, wherein said activating occurs at pressure between about 20-30 bar.
Claim 9
Dependent Claim
32 words
A catalyst for the methanization of carbon monoxide by hydrogen, produced according to claim 1, comprising 60-90 parts by weight nickel, 5-30 parts by weight aluminum and 5-10 parts by weight boron.
Claim 10
Dependent Claim
21 words
The catalyst of claim 8, in the form of pellets made of particles of a size less than about 100 μm.
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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |