RO96481B1 - Process and installation for the electrochemical preparation of hydrazobenzene - Google Patents

Process and installation for the electrochemical preparation of hydrazobenzene

Info

Publication number
RO96481B1
RO96481B1 RO125398A RO12539886A RO96481B1 RO 96481 B1 RO96481 B1 RO 96481B1 RO 125398 A RO125398 A RO 125398A RO 12539886 A RO12539886 A RO 12539886A RO 96481 B1 RO96481 B1 RO 96481B1
Authority
RO
Romania
Prior art keywords
hydrazobenzene
installation
nitrobenzene
reduction
electrochemical
Prior art date
Application number
RO125398A
Other languages
Romanian (ro)
Inventor
Anton Feyer
Dorin Gageonea
Victor Vartolomei
Dionisie Dina
Dan-Anton Filipescu
VASILE VîRTEJ
Horst Depner
Nicolae Cosma
Original Assignee
îNTREPRINDEREA DE COLORANTI "COLOROM"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by îNTREPRINDEREA DE COLORANTI "COLOROM" filed Critical îNTREPRINDEREA DE COLORANTI "COLOROM"
Priority to RO125398A priority Critical patent/RO96481B1/en
Publication of RO96481B1 publication Critical patent/RO96481B1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Inventia se refera la un procedeu si la o instalatie pentru sinteza electrochimica a hidrazobenzenului pentru benzidina care se realizeaza într-un utilaj cilindric conceput special pentru reducerea electrochimica prevazut cu catod rotativ si diafragma adecvata, în care procesul de reducere a nitrobenzenului se realizeaza în doua faze fara prezenta de solvent organic. în faza I de reducere sub dozarea continua a nitrobenzenului se obtine azoxibenzenul, iar în faza a II-a, de reducere fara adaugare de nitrobenzen, se obtine hidrazobenzenul.The invention relates to a process and an installation for the electrochemical synthesis of hydrazobenzene for benzidine which is carried out in a cylindrical machine specially designed for electrochemical reduction provided with a rotating cathode and a suitable diaphragm, in which the process of reducing nitrobenzene is carried out in two phases. without the presence of organic solvent. In the first phase of reduction under continuous dosing of nitrobenzene, azoxybenzene is obtained, and in the second phase of reduction without the addition of nitrobenzene, hydrazobenzene is obtained.

RO125398A 1986-11-17 1986-11-17 Process and installation for the electrochemical preparation of hydrazobenzene RO96481B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO125398A RO96481B1 (en) 1986-11-17 1986-11-17 Process and installation for the electrochemical preparation of hydrazobenzene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO125398A RO96481B1 (en) 1986-11-17 1986-11-17 Process and installation for the electrochemical preparation of hydrazobenzene

Publications (1)

Publication Number Publication Date
RO96481B1 true RO96481B1 (en) 1989-03-03

Family

ID=40905189

Family Applications (1)

Application Number Title Priority Date Filing Date
RO125398A RO96481B1 (en) 1986-11-17 1986-11-17 Process and installation for the electrochemical preparation of hydrazobenzene

Country Status (1)

Country Link
RO (1) RO96481B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102321891A (en) * 2011-09-19 2012-01-18 北京化工大学 High-yield electrochemical method for synthesizing 2,2'-dichlorohydrazobenzene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102321891A (en) * 2011-09-19 2012-01-18 北京化工大学 High-yield electrochemical method for synthesizing 2,2'-dichlorohydrazobenzene

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