Extraction process in Sm³⁺ aqueous solutions from nitrate media by sodium dodecylsulfate as collector is investigated. Distribution coefficients on depending of the pH aqueous phase in different concentration of Sm³⁺ is obtained.

The ion flotation of cerium (3+) and samarium (3+) from nitrate solutions by use of sodium dodecyl sulphate as a collector with addition of sodium chloride has been stated. The ratio of distribution coefficients and separation coefficient as function of the pH-aqueous phase with different concentration of chloride-ions has been analyzed. The separation coefficient has rise from 1,3 till 4,75 when chloride has been added.

The possibilities of adsorption-bubble method - flotation extraction to reduce the concentration of nickel ions to the maximum permissible concentration have been determined experimentally. The obtained data testify to the efficiency of nickel ions extraction with the help of sodium dodecyl sulfate.