GB396375A - Improvements in or relating to the synthesis of formic acid - Google Patents
Improvements in or relating to the synthesis of formic acidInfo
- Publication number
- GB396375A GB396375A GB3330631A GB3330631A GB396375A GB 396375 A GB396375 A GB 396375A GB 3330631 A GB3330631 A GB 3330631A GB 3330631 A GB3330631 A GB 3330631A GB 396375 A GB396375 A GB 396375A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- carbon monoxide
- steam
- cuprous chloride
- mixture
- 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
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Formic acid is produced by the reaction of carbon monoxide on water or steam in presence of an acid or acid substance and of a substance capable of absorbing carbon monoxide such as cuprous chloride or silver nitrate. Suitable acid substances are lower fatty acids such as acetic acid, hydrochloric acid, chromic acid and tungstic acid. The reaction may be effected by passing a mixture of carbon monoxide and steam through the acid or its solution containing cuprous chloride or the like. Carbon monoxide may be used without steam when the catalyst contains water, and acid vapour such as hydrochloric acid may be added to the gas. Alternatively a mixture of carbon monoxide, steam and acetic or hydrochloric acid may be passed through a reaction zone containing cuprous chloride or the like, which may be supported on a carrier such as pumice kieselguhr or carborundum. In another modification the reaction mixture may be passed over solid tungstic or chromic acid mixed with cuprous chloride or the like, and these substances may be supported on carriers. The carbon monoxide may be pure or dilute, and may be free from sulphur compounds. In an example a mixture of equal volumes of carbon monoxide and steam is passed through anhydrous acetic acid containing cuprous chloride at 220 DEG C. and 15 atmospheres pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3330631A GB396375A (en) | 1931-12-01 | 1931-12-01 | Improvements in or relating to the synthesis of formic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3330631A GB396375A (en) | 1931-12-01 | 1931-12-01 | Improvements in or relating to the synthesis of formic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB396375A true GB396375A (en) | 1933-08-01 |
Family
ID=10351235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3330631A Expired GB396375A (en) | 1931-12-01 | 1931-12-01 | Improvements in or relating to the synthesis of formic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB396375A (en) |
-
1931
- 1931-12-01 GB GB3330631A patent/GB396375A/en not_active Expired
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