Abstract
The concentration of nickel chloride solution was studied by mean of the electrodiarysis method with ion exchange membranes. As the result, the effects of the current density for the concentration and volume of concentrated solution were similar to that of sea water. The values of current efficiency indicated about 90%.
In the concentration of the mixed solution of nickel and sodium chloride, it was recognized that nickel ion was more easily concentrated than sodium ion. The value of permselectivity coefficiency of nickel ion against sodium ion was 1.24.
On the other hand, in the desalination of mixed solution of nickel and sodium chloride it was recognized that nickel ion was more easily desalinated than sodium ion. The value of selectivity coefficiency of nickel ion against sodium ion in desalination indicated 1.42.
