GB730425A - Improvements in the production of acrylonitrile - Google Patents
Improvements in the production of acrylonitrileInfo
- Publication number
- GB730425A GB730425A GB6685/53A GB668553A GB730425A GB 730425 A GB730425 A GB 730425A GB 6685/53 A GB6685/53 A GB 6685/53A GB 668553 A GB668553 A GB 668553A GB 730425 A GB730425 A GB 730425A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- salts
- cuprous
- acrylonitrile
- hydrochloric acid
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Acrylonitrile is produced from hydrogen cyanide and gas mixtures containing acetylene and at least 10 per cent by volume of carbon monoxide by leading the reactants through solutions of cuprous salts of strong inorganic acids, preferably containing ammonium salts and/or alkali metal salts and strong inorganic acids, the solutions also containing salts of rare earth metals. The catalyst may be dissolved in water or in inert organic solvents such as glycols, formamide and acetamide and the reaction may be carried out at superatmospheric pressure. Ceric or lanthanum salts are suitable rare earth metal salts. In the examples, hydrogen cyanide and a mixture of acetylene, hydrogen, carbon monoxide, carbon dioxide, methane and nitrogen are passed over an aqueous catalyst solution containing (4) cuprous chloride, ammonium chloride, sodium chloride, hydrochloric acid and ceric chloride, and (b) cuprous chloride, lanthanum acetate, ammonium chloride, sodium chloride and hydrochloric acid, to give acrylonitrile.ALSO:Catalysts, for the production of acrylonitrile from hydrogen cyanide and gas mixtures containing acetylene and carbon monoxide, consist of solutions of cuprous salts containing salts of rare earth metals and preferably also containing ammonium salts and/or alkali metal salts and strong inorganic acids. Suitable solvents for the catalysts are, for example, water, glycols, formamide and acetamide. In the examples hydrogen cyanide and gas mixtures containing acetylene and carbon monoxide react to give acrylonitrile in the presence of aqueous solutions of (a) cuprous chloride, ammonium chloride, sodium chloride, hydrochloric acid and ceric chloride; and (b) cuprous chloride, lanthanum acetate, ammonium chloride, sodium chloride and hydrochloric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE730425X | 1952-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB730425A true GB730425A (en) | 1955-05-25 |
Family
ID=6636651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6685/53A Expired GB730425A (en) | 1952-03-14 | 1953-03-11 | Improvements in the production of acrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB730425A (en) |
-
1953
- 1953-03-11 GB GB6685/53A patent/GB730425A/en not_active Expired
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