PROCESS FOR PREPARING PHENYLENE DIAMINES Russian patent published in 1997 - IPC

Abstract RU 2084445 C1

FIELD: synthesis of intermediate products for dyes and stabilizers of synthetic rubbers. SUBSTANCE: claimed process comprises reducing nitroanilines in water using ultradispersive aluminium powder at aluminium to nitroaniline molar ratio of 1:(0.16-0.40). EFFECT: reduced process time and reduced process temperature, and no aggressive medium is formed.

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RU 2 084 445 C1

Authors

Sirotkina E.E.

Fedushchak T.A.

Zhuravkov S.P.

Il'In A.P.

Dates

1997-07-20—Published

1993-11-09—Filed