Processes for producing ketazine and hydrazine

Details Processes for producing ketazine and hydrazine Processes for producing ketazine and hydrazine

1996-07-19

1999-11-16

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

423407, C07C24100, C07C24102, C01B 2116, C07B24916

Patent

active

059861347

ABSTRACT:
A process for continuously and stably synthesizing a ketazine from hydrogen peroxide, ammonia and methyl ethyl ketone in the presence of a solution containing a catalyst. The process comprises removing sec-butyl alcohol by distillation from methyl ethyl ketone, which is reused by circulation. Also a process for preparing a hydrazine hydrate which comprises hydrolyzing the ketazine. By circulating unreacted ketone, accumulation of impurities in the circulated ketone can be prevented to obtain a high yield of the ketazine and the hydrazine hydrate, for a long period of time.

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