US4057513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation catalyst and process for preparing same
Assignee: Bayer AG
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Filing: 1976-01-23
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Granted: 1977-11-08
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Expires: 1996-01-23
Abstract
Abstract A hydrogenation catalyst containing cobalt, manganese and copper in the form of their oxides and alkali metal oxide and silicon dioxide. A weight ratio of cobalt to maganese is 25:1 to 1:1, and the copper content is 0.01 to 2% by weight based on a total weight of the catalyst. The catalyst is prepared by adding an excess of an aqueous solution of a hydroxide, bicarbonate or carbonate of an alkali metal to an aqueous solution of water-soluble cobalt salts, manganese-(II) salts and copper salts to form a precipitate. Thereafter an aqueous solution of an alkali metal silicate or SiO 2 sol is added to the precipitate which is filtered off and washed with water to remove excess alkali metal hydroxide, bicarbonate or carbonate. The precipitate is then dried and calcined to form the catalyst.
Inventors
- 👤 Wolfgang Biedermann
- 👤 Horst Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
58 words
Catalyst comprising cobalt manganese and copper in the form of their oxides, an alkali metal oxide and silicon dioxide, the weight ratio of cobalt to manganese being 25:1 to 1:1, the copper content being 0.01 to 2 percent by weight based on the total weight of catalyst, the amounts of metals in each case being calculated as metals.
Claim 2
Dependent Claim
58 words
Catalyst comprising cobalt manganese and copper in the form of their oxides, an alkali metal oxide and silicon dioxide, the weight ratio of cobalt to manganese being 25:1 to 1:1, the copper content being 0.01 to 2 percent by weight based on the total weight of catalyst, the amounts of metals in each case being calculated as metals.
Claim 3
Dependent Claim
14 words
Catalyst of claim 1 wherein the weight ratio of cobalt to manganese is 3:1.
Claim 4
Dependent Claim
52 words
Catalyst of claim 1 containing from 0.05 to 0.5 percent by weight copper, an amount of alkali metal oxide corresponding to 0.02 to 0.35 percent by weight of alkali metal and from 0.005 to 5 percent by weight of SiO 2 , in each case based on the total weight of catalyst.
Claim 5
Dependent Claim
28 words
Catalyst of claim 1 wherein the alkali metal oxide content corresponds to 0.1 to 0.3 percent by weight of alkali metal, relative to the total weight of catalyst.
Claim 6
Dependent Claim
22 words
Catalyst of claim 1 containing from 0.05 to 3 percent by weight SiO 2 , relative to the total weight of catalyst.
Claim 7
Dependent Claim
12 words
Catalyst of claim 1 containing potassium oxide as the alkali metal oxide.
Claim 8
Dependent Claim
81 words
Process for preparing a catalyst which comprises adding an excess of an aqueous solution of a hydroxide, bicarbonate or carbonate of an alkali metal to an aqueous solution of water-soluble cobalt salts, manganese-(II) salts and copper salts to form a precipitate, adding an aqueous solution of an alkali metal silicate or SiO 2 sol to the precipitate, filtering off the precipitate and washing with water to remove excess alkali metal hydroxide, bicarbonate or carbonate, and thereafter drying and calcining the precipitate.
Claim 9
Dependent Claim
81 words
Process for preparing a catalyst which comprises adding an excess of an aqueous solution of a hydroxide, bicarbonate or carbonate of an alkali metal to an aqueous solution of water-soluble cobalt salts, manganese-(II) salts and copper salts to form a precipitate, adding an aqueous solution of an alkali metal silicate or SiO 2 sol to the precipitate, filtering off the precipitate and washing with water to remove excess alkali metal hydroxide, bicarbonate or carbonate, and thereafter drying and calcining the precipitate.
Claim 10
Dependent Claim
17 words
Process of claim 7 wherein the aqueous solution of an alkali metal silicate is a water-glass solution.
Claim 11
Dependent Claim
25 words
Process of claim 8 wherein, after the water-glass solution is added and before the precipitate is filtered off, the mixture is stirred for 2-4 hours.
Claim 12
Dependent Claim
12 words
Process of claim 7 wherein the alkali metal carbonate is potassium carbonate.
Claim 13
Dependent Claim
78 words
Process for preparing a catalyst which comprises adding aqueous ammonia or ammonium carbonate solution to an aqueous solution of water-soluble cobalt salts, manganese-(II) salts and copper salts to form a precipitate, adding an aqueous solution of an alkali metal salt or an appropriate amount of solid alkali metal salt to the precipitate, further adding an aqueous solution of an alkali metal silicate or SiO 2 sol to the precipitate, filtering off the precipitate and drying and calcining same.
Claim 14
Dependent Claim
78 words
Process for preparing a catalyst which comprises adding aqueous ammonia or ammonium carbonate solution to an aqueous solution of water-soluble cobalt salts, manganese-(II) salts and copper salts to form a precipitate, adding an aqueous solution of an alkali metal salt or an appropriate amount of solid alkali metal salt to the precipitate, further adding an aqueous solution of an alkali metal silicate or SiO 2 sol to the precipitate, filtering off the precipitate and drying and calcining same.
Claim 15
Dependent Claim
27 words
Catalyst of claim 1 in the form of a powder containing 0.1 to 2% by weight of graphite as a lubricant, based on the weight of catalyst.
Claim 16
Dependent Claim
7 words
Catalyst of claim 1 treated with hydrogen.
Claim 17
Dependent Claim
16 words
A process according to claim 7 wherein an SiO 2 sol is added to said precipitate.
Claim 18
Dependent Claim
16 words
A process according to claim 11 wherein an SiO 2 sol is added to said precipitate.
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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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |