A series of extraction equilibrium experiments for aminobenzoic acid were carried out. Tri n octylamine (TOA) and tributyl phosphate (TBP) were selected as complexing agents. 1 Octanol and kerosene were selected ...A series of extraction equilibrium experiments for aminobenzoic acid were carried out. Tri n octylamine (TOA) and tributyl phosphate (TBP) were selected as complexing agents. 1 Octanol and kerosene were selected as diluents. The effects of extractant concentration and pH on the distribution ratio were discussed in detail. It was found that there are ion pair association and hydrogen bond complexing in the extraction. Expressions of the equilibrium distribution for different solvent systems are proposed. The precision of the models is satisfactoy.展开更多
基金the National Natural Science Foundationof China (No.2 9836 130
文摘A series of extraction equilibrium experiments for aminobenzoic acid were carried out. Tri n octylamine (TOA) and tributyl phosphate (TBP) were selected as complexing agents. 1 Octanol and kerosene were selected as diluents. The effects of extractant concentration and pH on the distribution ratio were discussed in detail. It was found that there are ion pair association and hydrogen bond complexing in the extraction. Expressions of the equilibrium distribution for different solvent systems are proposed. The precision of the models is satisfactoy.
