GB873447A - A process for obtaining organically substituted hydrazines - Google Patents
A process for obtaining organically substituted hydrazinesInfo
- Publication number
- GB873447A GB873447A GB29092/59A GB2909259A GB873447A GB 873447 A GB873447 A GB 873447A GB 29092/59 A GB29092/59 A GB 29092/59A GB 2909259 A GB2909259 A GB 2909259A GB 873447 A GB873447 A GB 873447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- hydrazines
- solution
- obtaining
- extract
- 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 process for obtaining organically substituted hydrazines from synthesis solutions, which are produced from ammonia, alkali metal hypochlorite solution and an amine, comprises adding an alkali metal hydroxide to the synthesis solution to bring the solution to an alkali metal hydroxide concentration of 10 to 40% by weight, extracting with an inert organic solvent capable of dissolving such hydrazine and recovering the organic hydrazines from this extract by fractional distillation. Suitable extraction solvents are aromatic amines, aromatic hydroxy compounds and aliphatic amines having at least 7 carbon atoms. The extract of organic hydrazines is preferably treated with solid caustic alkali during the distillation in order to remove small quantities of water. The examples describe the recovery of mono- and di-methyl hydrazine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE873447X | 1958-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB873447A true GB873447A (en) | 1961-07-26 |
Family
ID=6816450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29092/59A Expired GB873447A (en) | 1958-09-04 | 1959-08-25 | A process for obtaining organically substituted hydrazines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB873447A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105315172A (en) * | 2015-12-07 | 2016-02-10 | 济南大学 | New process for separating water-methyl hydrazine azeotrope |
-
1959
- 1959-08-25 GB GB29092/59A patent/GB873447A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105315172A (en) * | 2015-12-07 | 2016-02-10 | 济南大学 | New process for separating water-methyl hydrazine azeotrope |
CN105315172B (en) * | 2015-12-07 | 2017-06-23 | 济南大学 | A kind of new technology of separation water-methyl hydrazine azeotropic mixture |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1126200A (en) | Recovering palladium values by extraction | |
ES280082A1 (en) | Process for the recovery of phosphoric acid from aqueous reaction mixtures produced by the decomposition of tricalcium phosphate with hydrochloric acid | |
GB873447A (en) | A process for obtaining organically substituted hydrazines | |
GB986924A (en) | Process for the recovery of tertiary olefins | |
GB998639A (en) | Improvements in or relating to the purification of acrylonitrile by distillation | |
GB890240A (en) | A process for obtaining anhydrous hydrazine | |
GB923463A (en) | Recovery of hexamethylphosphorictriamide | |
ES282992A1 (en) | Procedure to recover melamine (Machine-translation by Google Translate, not legally binding) | |
GB966406A (en) | Improvements in and relating to hydrazine production | |
GB907325A (en) | A process for obtaining aliphatic ª+-aminonitriles | |
ES252322A1 (en) | Kanamycin a separation process | |
GB854997A (en) | Process for the production of hydrazine, hydrazine hydrate or hydrazine salts | |
ES251174A1 (en) | Procedure for the obtaining of organically substitute hydrains (Machine-translation by Google Translate, not legally binding) | |
GB1109663A (en) | Process for the production of an n-cyclohexyl sulphamate | |
GB1024136A (en) | Method of recovering by-products from pulping operations | |
GB931145A (en) | Improvements in and relating to the production of fused ring polycyclic aryl sodium compounds | |
GB869958A (en) | Process for the separation of thorium from lanthanons | |
SU126110A1 (en) | The method of separation of aromatic compounds from mixtures of hydrocarbons | |
GB884184A (en) | Improvements in or relating to the production of new compounds from wood | |
NL293405A (en) | ||
GB790760A (en) | Recovering trimethylolethane | |
GB382372A (en) | Improved extraction process for obtaining substances in purified condition | |
GB945501A (en) | New steroid compounds and processes for their preparation | |
ES244884A1 (en) | A procedimine to recover from lactama oligomer solutions containing lactama (Machine-translation by Google Translate, not legally binding) | |
GB805817A (en) | Process for purifying trichloro-and tetrachlorobutane |