GB820693A - Process for the selective decomposition of formic acid - Google Patents
Process for the selective decomposition of formic acidInfo
- Publication number
- GB820693A GB820693A GB5057/58A GB505758A GB820693A GB 820693 A GB820693 A GB 820693A GB 5057/58 A GB5057/58 A GB 5057/58A GB 505758 A GB505758 A GB 505758A GB 820693 A GB820693 A GB 820693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formic acid
- aliphatic acids
- acid
- hydrocarbons
- treatment
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
Acid mixtures containing either formic acid and one or more other aliphatic acids or formic acid, one or more other aliphatic acids and one or more hydrocarbons, are purified by selectively decomposing the formic acid by contacting the mixture in the vapour phase with a dehydrogenation catalyst containing chromium oxide and copper oxide, the atomic ratio of Cu:Cr being 1:1 to 1:2, at a temperature between 130 DEG and 200 DEG C. with the exclusion of oxygen. The other aliphatic acids present are generally monocarboxylic acids having 2 to 8 carbon atoms and the reaction is preferably carried out at a temperature of 160-80 DEG C. using a catalyst containing also a small quantity of barium oxide and a space velocity of at least 4 litres of liquid feed per litre of catalyst per hour. The other aliphatic acids and hydrocarbons which may be present are unaffected by the treatment. The examples describe the treatment of mixtures containing 4% formic acid, together with acetic acid, water and diisopropylbenzene, to decompose the formic acid. Specification 734,374 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL820693X | 1957-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB820693A true GB820693A (en) | 1959-09-23 |
Family
ID=19840845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5057/58A Expired GB820693A (en) | 1957-02-18 | 1958-02-17 | Process for the selective decomposition of formic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB820693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1291731B (en) * | 1964-04-06 | 1969-04-03 | Celanese Corp | Process for the catalytic removal of formic acid from its mixtures with acetic acid |
-
1958
- 1958-02-17 GB GB5057/58A patent/GB820693A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1291731B (en) * | 1964-04-06 | 1969-04-03 | Celanese Corp | Process for the catalytic removal of formic acid from its mixtures with acetic acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1007987A (en) | Process for oxidizing saturated cyclic hydrocarbon | |
| GB1023446A (en) | Production of epoxy-alcohols by the decomposition of hydroperoxides | |
| GB1019437A (en) | Process for preparing dichlorinated ethylene derivatives | |
| GB1071350A (en) | Process for the preparation of high purity terephthalic acid | |
| GB939713A (en) | A process for preparing unsaturated monocarboxylic acids from olefins | |
| GB820693A (en) | Process for the selective decomposition of formic acid | |
| GB1344487A (en) | Process for preparing purified bis-beta-hydroxyethyl-tereph thalate method for promoting the grwoth of plants | |
| GB1091213A (en) | Purification of synthetic alcohols | |
| GB1002678A (en) | Production of ethylene oxide and recovery of nitrogen | |
| ES282073A1 (en) | Catalytic recovery procedure based on cobalt (Machine-translation by Google Translate, not legally binding) | |
| GB1016087A (en) | Process for producing organic carboxylic acids | |
| GB910141A (en) | A process for the catalytic and selective decomposition of formic acid | |
| GB937260A (en) | Process for the catalytic dealkylation of aromatic compounds | |
| ES392123A1 (en) | Process for the preparation of olefine oxides | |
| GB1090776A (en) | Improvements in the purification of ethylene | |
| GB1036330A (en) | A process for the recovery of naphthoquinone formed in the catalytic vapor phase oxidation of naphthalene | |
| GB956618A (en) | Process for purification of vinyl chloride | |
| GB846847A (en) | An improved method of producing conjugated diolefines | |
| GB1046047A (en) | Process for the manufacture of trans-2-chlorobutene-(2) | |
| GB932827A (en) | Improvements in or relating to the manufacture of dimethylformamide | |
| GB899693A (en) | Purification of hexafluoropropylene | |
| GB879564A (en) | Process for the production of cyclohexanone from cyclohexylamine | |
| GB908744A (en) | Mercuric-olefine addition compounds | |
| GB396375A (en) | Improvements in or relating to the synthesis of formic acid | |
| GB760054A (en) | Purification of naphthalene |