(Liquid + liquid) eq uilibria for phosph oric acid with dich lorometha ne and water using GMDH-t ype neural network

Studies of phase equilib ria of ternary systems are very importantin bo th theoretical and industrial. Precise LLE data ofaque ous mixture s with organic solvents are needed in the evaluationof indu strial u nits for solv ent extraction processe s. Phosphoric acid is on e of the m ost widely used inor ganic acids,which has many indu strial a pplications. Therefore,the efficient separation of phosphoric acid from aqueous solutions,by so lvent e xtraction technique,is of considerab le economi cimportance in the chemical industr y[۱,۴].In this work, LLE results for the aqueous mixtu res of phosphoric acid withdicholoromethane a t T = ۲ ۹۸ Kwas obtained for the ternarysystem with usingGMD H type-neu ral network in prediction of LLE data for the ternary system.