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2 063 385

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C1

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IPC

(21) (22)

Application

93048632/26, 1993-10-25

(22)

Actual filing date

1993-10-25

(45)

Published

1996-07-10

(72)

Inventor

Elizarova G.L.Matvienko L.G.Parmon V.N.

(73)

Holder

Institut Kataliza Im.G.K.Boreskova So Ran

PROCESS FOR PURIFYING AQUEOUS SOLUTIONS FROM 1,1- DIMETHYLHYDRAZINE Russian patent published in 1996 - IPC

Abstract RU 2063385 C1

FIELD: purification of aqueous solutions from 1,1-dimethylhydrazine. SUBSTANCE: aqueous solutions are oxidized with air in the presence of catalysts include hydroxocompounds of Cu, Fe, Co, Ni, Mn and Rh which are individually or in admixture applied in amount of 0.3-10 wt% onto oxide carriers, e.g. zeolites, oxides of titanium, aluminium or silicon. 1,1- dimethylhydrazine at pH of 7-9 and at temperature not higher than 40 C. EFFECT: more efficient purification process. 4 cl, 1 tbl

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RU 2 063 385 C1

Authors

Elizarova G.L.

Matvienko L.G.

Parmon V.N.

Dates

1996-07-10—Published

1993-10-25—Filed

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