Process for preparation of monomethylhydrazine

Details Process for preparation of monomethylhydrazine Process for preparation of monomethylhydrazine

1981-12-03

1989-08-08

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

C07C10904

Patent

active

048555010

ABSTRACT:
Disclosed is a process for the preparation of monomethylhydrazine which comprises reacting hydrazine monohydrochloride with methanol in the presence of hydrazine dihydrochloride or methyl chloride and recovering free monomethylhydrazine from the formed monomethylhydrazine hydrochloride.
According to this process, monomethylhydrazine can be prepared at a high selectivity very easily while controlling formation of by-products.

REFERENCES:
patent: 3083229 (1963-03-01), Oja
patent: 3140315 (1964-07-01), Klos et al.
patent: 4124452 (1978-11-01), Henderson
patent: 4281198 (1981-07-01), Hojo et al.
Kirk-Othmer, "Encyclopedia of Chemical Technology", vol. 11, 2nd Ed, pp. 168 and 173-174 (1966).

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