GB877664A - Improvements in the production of adiponitrile - Google Patents
Improvements in the production of adiponitrileInfo
- Publication number
- GB877664A GB877664A GB23845/60A GB2384560A GB877664A GB 877664 A GB877664 A GB 877664A GB 23845/60 A GB23845/60 A GB 23845/60A GB 2384560 A GB2384560 A GB 2384560A GB 877664 A GB877664 A GB 877664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adipic acid
- ammonia
- melted
- resulting mixture
- adiponitrile
- 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
- C07C253/22—Preparation of carboxylic acid nitriles by reaction of ammonia with carboxylic acids with replacement of carboxyl groups by cyano groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Adiponitrile is prepared from ammonia and adipic acid by introducing the adipic acid as a powder suspended in a stream of ammonia at a temperature below the melting point of the adipic acid into a chamber in which it is melted, or both melted and vaporized, by the introduction of further ammonia at a suitably elevated temperature, if necessary heating the resulting mixture to vaporize the adipic acid, and passing the resulting mixture of ammonia and adipic acid vapour in contact with a dehydration catalyst. The total amount of ammonia employed is preferably 1.85-2.3 times the weight of the adipic acid, and the reaction temperature is preferably 350-370 DEG C. An example uses boron phosphate (obtained by mixing equivalent quantities of boric and phosphoric acids) as catalyst.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR877664X | 1959-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB877664A true GB877664A (en) | 1961-09-20 |
Family
ID=9361122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23845/60A Expired GB877664A (en) | 1959-07-10 | 1960-07-07 | Improvements in the production of adiponitrile |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB877664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242204A (en) * | 1962-05-18 | 1966-03-22 | Basf Ag | Production of adiponitrile |
| US3481969A (en) * | 1966-06-14 | 1969-12-02 | Vickers Zimmer Ag | Process for the production of adiponitrile |
-
1960
- 1960-07-07 GB GB23845/60A patent/GB877664A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242204A (en) * | 1962-05-18 | 1966-03-22 | Basf Ag | Production of adiponitrile |
| US3481969A (en) * | 1966-06-14 | 1969-12-02 | Vickers Zimmer Ag | Process for the production of adiponitrile |
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