The first part of this work relates to the analytical study of the electrochemical behavior of 1,3,5-trimethoxybenzene (TMB) by cyclic voltammetry at treated gold electrode. The second part is relative to the results of its conversion into a high added value product 2,6-dimethoxy-1,4-benzoquinone (DMBQ) by electrolysis at lead dioxide anode. The used electrolyte which is a simulated solution of TMB in water-acetone mixture should be prepared using a preconcentrated TMB wastewater. The partial substitution of water by acetone permit to control the TMB solubility to avoid the electrochemical efficiency reduction by TMB transfer limitation. Moreover, the DMBQ desorption from the electrode surface by the effects of acetone and its displacement by TMB provides the slowdown of its degradation. The electrochemical DMBQ recovery increases with the enhancement of acetone volumic percentage and decreases by increasing the current density.
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