Ji Ming-zhon
2005
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Liaoning Chemical Industry
Abstract
A simple method was given in this paper for recycling the waste produced in the process of synthesis of 4-Nitroacetophenone. And it has good economic value. The waste reacted with alkali solution, and the sodium salt of 4-nitrobenzoic acid crystals was obtained. The purified 4-Nitrobenzoic acid [pNBA] was produced by re-crystallization the crystals, and neutralization the solution of refined sodium salt of pNBA. The purity of pNBA was more than 99 %, and the yield was about 72 %.