FIELD: extraction of substances by organic extragents from aqueous solutions, for instance, of rare-earth elements; applicable in nonferrous and ferrous metallurgy. SUBSTANCE: the offered method consists in that extragent is used in form of lubricant containing, wt.%: oleic acid 10-12; triethenolamine 4.5-6.0; the balance, machine oil (inert diluent). Extraction is carried out in the interval of 0 < pH < 10 by continuous regulation of pH optimal value for the period of not in excess of 2 h. EFFECT: higher degree of extraction of rare-earth elements and their separation. 1 cl, 1 tbl
