Mass production method of phenylenediamine from high purity dinitrobenzene

摘要

The present invention relates to a method for producing phenylenediamine using the high purity of dinitrobenzene, which may manufacture meta-phenylenediamine having a high yield since dinitrobenzene can be produced without aniline as a byproduct. Meta-phenylenediamine is manufactured based on a cost effective raw material by using a process as above without a separate purification process, thereby drastically reducing a manufacturing cost compared to an existing process. Therefore, stable reaction can be induced in a synthetic process, thereby easily and safely manufacturing meta-phenylenediamine.