Metal Content Influence on Extraction of Chlorometallic Acids by Solvents Containing Diisopropyl Ether

The behaviour of extraction systems containing the diisopropyl ether (IPE) and metals forming chlorometallic acids was investigated in respect to change in metal content. The systems were of the MeCl_3-HCl-H_2O-IPE-S type. The metals (Me) were iron(III) and gallium(III) and the component of the mixed solvent (S) added to IPE were the inert solvent benzene or the acive solvent pentyl alcohol. Under defined conditions change in metal content induced major variations in phase volumes including change in the number of coexisting phases, changes in the concentration of metal and other components in the equilibrated phases and irregular changes of the distribution ratios in the investigated systems.