GB484995A - Improvements in the catalytic reduction of carboxylic acids - Google Patents
Improvements in the catalytic reduction of carboxylic acidsInfo
- Publication number
- GB484995A GB484995A GB3070536A GB3070536A GB484995A GB 484995 A GB484995 A GB 484995A GB 3070536 A GB3070536 A GB 3070536A GB 3070536 A GB3070536 A GB 3070536A GB 484995 A GB484995 A GB 484995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reduced
- hydrogen
- atmospheres
- copper
- cobalt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
- C07C29/149—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof with hydrogen or hydrogen-containing gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Alcohols are produced by the reduction of free high molecular weight non-aromatic acids with hydrogen under pressure in the presence of nickel, cobalt, and/or copper and of basic oxides of di- or tri-valent metals in amount at least equivalent to the free carboxylic acid present. Alternatively the salts of the carboxylic acid with di- or tri-valent metals, may be reduced with hydrogen. Suitable acids are those having at least 8 carbon atoms such as stearic, oleic, and palmitic acids, the oxidation products of paraffin wax, higher paraffin hydrocarbons, and of hydrogenation products of coal, tars and mineral oils in the liquid phase preferably at 100-200 DEG C. with oxygen, nitrous gases, nitric acid and the like in the presence of catalysts such as manganese palmitate, sodium carbonate-manganese stearate, sodium palmitate-aluminium palmitate and the like. When the soaps are to be reduced they may be in solution or suspension in alcohols such as dodecyl or hexadecyl alcohol, dioxane or ethers or paraffins of high molecular weight. In examples, (1) paraffin oil is oxidized with air at 140 DEG C. in the presence of manganese stearate, and the product is reduced with hydrogen at 200 atmospheres, in the presence of a catalyst consisting of 15 parts cobalt and 85 parts magnesia; (2) a similar oxidation product of paraffin oil made in the presence of calcium naphthenate is reduced with hydrogen in the presence of a cobalt-calcium oxide catalyst; (3) an oxidation product of Diesel oil is reduced in the presence of a copper-magnesia catalyst at 270 atmospheres; (4) an oxidation product of soft paraffin wax is heated with zinc oxide at 100 DEG C. and reduced in the presence of a copper-magnesia-chromium oxide catalyst at 200 atmospheres.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3070536A GB484995A (en) | 1936-11-10 | 1936-11-10 | Improvements in the catalytic reduction of carboxylic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3070536A GB484995A (en) | 1936-11-10 | 1936-11-10 | Improvements in the catalytic reduction of carboxylic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB484995A true GB484995A (en) | 1938-05-10 |
Family
ID=10311843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3070536A Expired GB484995A (en) | 1936-11-10 | 1936-11-10 | Improvements in the catalytic reduction of carboxylic acids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB484995A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149021A (en) | 1977-04-25 | 1979-04-10 | Chevron Research Company | Ester hydrogenation using cobalt, zinc and copper oxide catalyst |
-
1936
- 1936-11-10 GB GB3070536A patent/GB484995A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149021A (en) | 1977-04-25 | 1979-04-10 | Chevron Research Company | Ester hydrogenation using cobalt, zinc and copper oxide catalyst |
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