摘要：In this work,a techno-economic study for the solvent based extraction of methacrylic acid from an aqueous solution is *** involved phase equilibrium calculations in process design are verified by measured experimental ***,experiments are conducted with different solvent candidates to measure LLE(liquid–liquid equilibrium)data and to establish the effects of extraction temperature and dosage of ***,the binary interaction parameters for the UNIQUAC model to be used for equilibrium calculations are fine-tuned with measured ***,a process for the solvent based extraction of methacrylic acid recovery is designed and verified through simulation with the regressed UNIQUAC model *** optimal configuration of the process flowsheet is determined by minimizing the total annualized *** the three solvent candidates considered-cyclohexane,hexane and toluene-the highest efficiency and the lowest total annualized cost is found with toluene as the solvent.