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Polyalkylene oxidephosphates were obtained by phosphorylation ofpolyethylene oxide and polypropyleneoxide of different molecular weight. Evaluation of flotation activity in experiments on the extraction of tungsten oxide from wolf ramite pulp showed that the introduction of oxygen donor atoms into phosphate group substituent, responsible for hydrophobization of the surface of mineral particles, increase the degree of the heavy metal extraction.doi:10.26577/2218-7979-2014-7-2-61-64 fatcat:xhv6oixprvdt5hibibij4ovzbm