VERFAHREN ZUR HERSTELLUNG VON ORTHO-PHENYLENDIAMIN

• Main Authors: TROCSANYI, ZENO, HURTAK, ELEMER, KISGERGELY, LAJOS, HAMMERLI, PETER, VARGA, ZSOLT, JELEN, SANDOR, KINCSES, GYULA, CSIKOS, REZSO, BATHORY, JOZSEF
• Format: Patent
• Language: German
• Published: 27.03.1986
• Edition: 4
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The preparation of o- phenylenediamine by hydrogenation of compounds of the general formula (I> in which X stands for hydrogen or chlorine, in the presence of a hydrogenation catalyst, is characterized in that hydrogenation is performed in the presence of 30 to 70% of ammonia and 10 to 50% of wat...