GB482008A - Improvements in or relating to the production of amines - Google Patents
Improvements in or relating to the production of aminesInfo
- Publication number
- GB482008A GB482008A GB174537A GB174537A GB482008A GB 482008 A GB482008 A GB 482008A GB 174537 A GB174537 A GB 174537A GB 174537 A GB174537 A GB 174537A GB 482008 A GB482008 A GB 482008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halide
- ammonia
- ethylene
- hydrocarbon
- amines
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A saturated halide of an alkyl or alkylene hydrocarbon or a halide derived from an aralkyl hydrocarbon in which the aliphatic side chains are halogen substituted is reacted with aqueous ammonia while in the form of a stable emulsion. Suitable emulsifying agents are oleic or stearic acid, soaps, turkey red oil, lecithin, cymene sulphonates, diglycol stearate, and salts of sulphonated petroleum or sulphated alcohols such as cetyl sulphate. Halides specified are ethylene and propylene dichlorides, dibromides, and chlorobromides, ethyl, propyl, isopropyl, butyl and amyl chlorides and bromides, benzyl chloride, and phenyl ethyl chloride.ALSO:Amines are prepared by reaction, while in the form of a stable emulsion, of aqueous ammonia, and a saturated halide of an alkyl or alkylene hydrocarbon or a halide derived from an aralkyl hydrocarbon in which the aliphatic side chains are halogen substituted. Temperature and pressure are such that the halide and aqueous solution do not boil, and are generally about 100-200 DEG C. and 100-150 lb./in2. Suitable emulsifying agents are oleic or stearic acid, which forms a soap with the ammonia, soaps, turkey red oil, lecithin, cymene sulphonates, diglycol stearate, or salts of sulphonated petroleum or sulphated alcohols such as cetyl sulphate. These are preferably added to the halide before mixing with excess of ammonia. Emulsification may be effected by an injector or homogenizer or by passing fine streams of the halide at high velocity into a stream of aqueous ammonia. The emulsion may flow through heated tubes, which may contain helices or other devices for ensuring mixing, the product being treated in an evaporator to recover ammonia, and the residue distilled with alkali to obtain the amines. Examples describe the preparation of ethylene diamine from ethylene dichloride, and benzylamine from benzyl chloride. Other halides specified as starting materials are ethylene dibromide and chlorobromide, propylene dichloride, dibromide and chlorobromide, ethyl, propyl, isopropyl, butyl and amyl chlorides and bromides, and phenyl ethyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB174537A GB482008A (en) | 1937-01-20 | 1937-01-20 | Improvements in or relating to the production of amines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB174537A GB482008A (en) | 1937-01-20 | 1937-01-20 | Improvements in or relating to the production of amines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB482008A true GB482008A (en) | 1938-03-22 |
Family
ID=9727241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB174537A Expired GB482008A (en) | 1937-01-20 | 1937-01-20 | Improvements in or relating to the production of amines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB482008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640080A (en) * | 1947-10-18 | 1953-05-26 | Du Pont | Preparation of primary diamines |
-
1937
- 1937-01-20 GB GB174537A patent/GB482008A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2640080A (en) * | 1947-10-18 | 1953-05-26 | Du Pont | Preparation of primary diamines |
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