PROCESSING OF COPPER-CONTAINING MANMADE MATERIALS WITH APPLICATION OF POLYPHOSPHATES OF ALKALINE METALS

摘要

The methods of removal of metals-impurities from melts of copper-containing wastes are analysed. Polyphosphates of alkaline metals (PF), promoting formation of stable compounds with low reactivity, sorbing slags and metal-impurities (cobalt, manganese, iron, zinc, ruthenium, strontium, cerium, zirconium) in melt are offered as flux additive. The results of experiments confirming high refining ability of PF in comparison with traditional fluxes on the basis of silicon dioxide are indicated.