JPS5659745A - Purification of crude ketazine solution containing ketoxime - Google Patents

Purification of crude ketazine solution containing ketoxime

Info

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
Application number
JP13557879A
Other languages
Japanese (ja)
Other versions
JPS6337780B2 (en
Inventor
Kengo Kawasaki
Tsukasa Maekawa
Hidetoshi Kume
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
Original Assignee
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Otsuka Chemical Co Ltd, Otsuka Kagaku Yakuhin KK filed Critical Otsuka Chemical Co Ltd
Priority to JP13557879A priority Critical patent/JPS5659745A/en
Publication of JPS5659745A publication Critical patent/JPS5659745A/en
Publication of JPS6337780B2 publication Critical patent/JPS6337780B2/ja
Granted legal-status Critical Current

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  • 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
JP13557879A 1979-10-19 1979-10-19 Purification of crude ketazine solution containing ketoxime Granted JPS5659745A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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