Title:
PREPARATION OF PHENYLENEDIAMINE
Document Type and Number:
Japanese Patent JPS532427
Kind Code:
A
Abstract:
PURPOSE: The title compound is industrially prepared in high yield with one-stage process by the direct reaction of nitrohalogenobenzenes with NH3 and H2 (the partial pressure is 0.5 - 10 kg/cm2) in the presence of catalysts for the reduction.
Inventors:
KIYOURA TADAMITSU
Application Number:
JP7441276A
Publication Date:
January 11, 1978
Filing Date:
June 25, 1976
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
C07B61/00; B01J23/00; B01J23/40; B01J23/84; C07C67/00; C07C209/00; C07C209/10; C07C209/36; C07C211/51; (IPC1-7): B01J23/40; B01J23/84; C07C85/04; C07C87/58
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