GB811136A - Improvements in the production of acrylonitrile - Google Patents
Improvements in the production of acrylonitrileInfo
- Publication number
- GB811136A GB811136A GB34146/56A GB3414656A GB811136A GB 811136 A GB811136 A GB 811136A GB 34146/56 A GB34146/56 A GB 34146/56A GB 3414656 A GB3414656 A GB 3414656A GB 811136 A GB811136 A GB 811136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- cuprous
- piperidone
- caprolactam
- pyrrolidone
- 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
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/08—Preparation of carboxylic acid nitriles by addition of hydrogen cyanide or salts thereof to unsaturated compounds
- C07C253/12—Preparation of carboxylic acid nitriles by addition of hydrogen cyanide or salts thereof to unsaturated compounds to compounds containing carbon-to-carbon triple bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
Catalyst compositions comprising cuprous chloride together with ammonium or alkali metal chloride dissolved in a lactam-type solvent such as pyrrolidone, piperidone, caprolactam or N-methyl or N-ethyl derivatives of these are used to catalyse the formation of acrylonitrile from HCN and acetylene. Other substances which may be present include cuprous cyanide and HCl. Examples describe catalysts comprising cuprous chloride, ammonium chloride and cuprous cyanide dissolved in pyrrolidone caprolactam or piperidone; in the last two cases HCl is also present.ALSO:Acrylonitrile is prepared by reacting HCN and acetylene in the presence of cuprous chloride dissolved in an anhydrous lactam-type solvent especially pyrrolidone, piperidone, caprolactam or the N-methyl or N-ethyl derivatives thereof. Ammonium or alkali metal chloride is present, preferably in the minimum amount necessary to obtain complete solution of the cuprous chloride. The reaction temperature ranges from about 60 DEG C. to the boiling point of the catalyst mixture. In examples, HCN and acetylene are reacted in the presence of catalysts consisting of cuprous chloride, ammonium chloride, and cuprous cyanide dissolved in pyrrolidone, piperidone or caprolactam, HCl being present also in the last two cases.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US811136XA | 1955-12-19 | 1955-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB811136A true GB811136A (en) | 1959-04-02 |
Family
ID=22162174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34146/56A Expired GB811136A (en) | 1955-12-19 | 1956-11-08 | Improvements in the production of acrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB811136A (en) |
-
1956
- 1956-11-08 GB GB34146/56A patent/GB811136A/en not_active Expired
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