QUEST FOR THE TECHNOLOGY OF EXTRACTING ZINC, COPPER AND SAND UTILIZATION FROM SOLID WASTES OBTAINED AFTER COPPER SMELTING SLAGS FLOTATION

Authors

  • Dmitriy Reutov Institute of Metallurgy UB RAS
  • Alla Kotelnikova The Institute of Geology and Geochemistry, UB RAS
  • Boris Halezov The Institute of Metallurgy, UB RAS
  • Galina Korinevskaya The Institute of Mineralogy, UB RAS

Keywords:

copper, zinc, utilization, flotation wastes, leaching, wet magnetic separation, sulfuric acid

Abstract

Wastes’ samples of recycling smelting dump slag
are taken. The chemical, mineralogical and phase
composition of the slag is studied. According to Xray phase analysis (XRPA) almost all of the copper
is concentrated in ferrites and zinc in ferrites, silicates, zincite and sphalerite.
An attempt was made to divide the slag into magnetic and non-magnetic fractions by wet magnetic
separation.
The synthesis and research of iron glass, similar
in composition to ferrous glassy phase of smelting
slag is performed.
Studies have been conducted on copper and zinc
ferrites leaching from the SUMZ slag by agitation
leaching with sulfuric, nitric and hydrochloric acids. Most copper and zinc extraction is observed in
comparatively weak solutions of sulfuric acid.

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Published

2015-06-30

Issue

No. 2 (5) (2015)

Section

ENRICHMENT OF MINERAL RESOURCES