公开(公告)号：US3836440A

公开(公告)日：1974-09-17

申请号：US30777672

申请日：1972-11-20

Applicant: HOECHST AG

Inventor： ALT H ,  ALT O ,  CRAMER J ,  BEYER NEE ALT G ,  CLASEN H

IPC: C07C243/22 ,  C07C67/00 ,  C07C241/00 ,  C07C241/02 ,  C25B3/04 ,  C07B29/06 ,  C07C109/04

CPC classification number: C25B3/04 ,  C07C241/02 ,  C07C243/22

Abstract: A PROCESS FOR THE MANUFACTURE OF PHENYLHYDRAZINE BY CATHODIC REDUCTION WITH SEPARATION OF CATHODE AND ANODE SPACES BY A DIAPHRAGM WHEREIN DIAZOAMINOBENZENE DISSOLVED IN AN ELECTROLYTE IS REDUCED ON SOLID ELCTRODES.