METHOD FOR RADIOELECTRONIC PRODUCTS SCRAP PROCESSING WITH HIGH PURITY PRECIOUS METALS EXTRACTION

摘要

FIELD: metallurgy.;SUBSTANCE: initial boards are charged into a typical hammer crusher HC-1 with established typical screens. After crushing of boards, crushed fraction is charged to a flotation machine FLM-1. After flotation metal fraction is washed with water and air dried. Further, metal fraction is mixed with potassium tetrafluorobromide in a weight ratio of 1:10, and fused inside a muffle furnace. After cooling, produced melt is dissolved in water. Remaining insoluble material is separated on filter paper, air dried and sent to refining.;EFFECT: extraction of high purity precious metals.;2 ex