JPS5659745A - Purification of crude ketazine solution containing ketoxime - Google Patents
Purification of crude ketazine solution containing ketoximeInfo
- Publication number
- JPS5659745A JPS5659745A JP13557879A JP13557879A JPS5659745A JP S5659745 A JPS5659745 A JP S5659745A JP 13557879 A JP13557879 A JP 13557879A JP 13557879 A JP13557879 A JP 13557879A JP S5659745 A JPS5659745 A JP S5659745A
- Authority
- JP
- Japan
- Prior art keywords
- ketazine
- crude
- ketoxime
- solution
- ketone
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare a high quality ketazine solution useful as an intermediate of hydrazine, easily and efficiently, by the distillation of a crude ketazine solution containing ketoxime in the presence of a ketone corresponding to said ketazine.
CONSTITUTION: A solution of crude ketazine of formula II (R1 and R2 are 1W3C alkyl) containing a ketoxime of formula I is distilled in the presence of a ketone corresponding to said ketazine. Ketazine is distilled out together with the ketone, and a ketazine solution essentially free from ketoxime can be obtained. The amount of the ketone is pref. 3W20wt%, based on the crude ketazine solution. The feed of ketone can be carried out batchwise or continuously.
EFFECT: The ketoxime existing in the solution as an impurity, can be separated, recovered and effectively utilized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13557879A JPS5659745A (en) | 1979-10-19 | 1979-10-19 | Purification of crude ketazine solution containing ketoxime |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13557879A JPS5659745A (en) | 1979-10-19 | 1979-10-19 | Purification of crude ketazine solution containing ketoxime |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5659745A true JPS5659745A (en) | 1981-05-23 |
JPS6337780B2 JPS6337780B2 (en) | 1988-07-27 |
Family
ID=15155083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13557879A Granted JPS5659745A (en) | 1979-10-19 | 1979-10-19 | Purification of crude ketazine solution containing ketoxime |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5659745A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0294100A1 (en) * | 1987-05-28 | 1988-12-07 | Mitsubishi Gas Chemical Company, Inc. | A process for producing a purified hydrazine hydrate |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212684A (en) * | 1975-07-18 | 1977-01-31 | Kanegafuchi Chem Ind Co Ltd | Process for preventing deliquenscence of organic deliquenscent materia l |
JPS5341649A (en) * | 1976-09-27 | 1978-04-15 | Yokio Sakai | Ignition apparatus for internal combustion engine |
-
1979
- 1979-10-19 JP JP13557879A patent/JPS5659745A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212684A (en) * | 1975-07-18 | 1977-01-31 | Kanegafuchi Chem Ind Co Ltd | Process for preventing deliquenscence of organic deliquenscent materia l |
JPS5341649A (en) * | 1976-09-27 | 1978-04-15 | Yokio Sakai | Ignition apparatus for internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0294100A1 (en) * | 1987-05-28 | 1988-12-07 | Mitsubishi Gas Chemical Company, Inc. | A process for producing a purified hydrazine hydrate |
Also Published As
Publication number | Publication date |
---|---|
JPS6337780B2 (en) | 1988-07-27 |
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