Submit an Article
Become a reviewer
Vol 152
Download volume:
Research article

Impact of roasting and leaching on changes in the phase composition of the main components of copper electrolyte slurry

A. Ya. Boduen
About authors
  • Postgraduate student G.V. Plekhanov Saint Petersburg State Mining Institute
Date submitted:
Date accepted:
Date published:


Medelectrolyte sludge is the main concentrator of rare and noble metals, the processing efficiency of which is determined by the depth of extraction of valuable components. The final operation of sludge processing is smelting for gold-silver alloy. According to the industrial practice, smelting leads to 05-07% of gold, 4-5% of silver and 30% of tellurium in the circulating dust, slag and scrap, which are utilized in the own production and accompanied by loss of noble and rare metals. The aim of the present study is to increase the recovery of gold-silver alloy smelting exclusion. The phase analysis of the main components of copper electrolyte slurry using chemical and X-ray microanalysis was carried out. The influence of the oxidation roasting temperature on the ratio of the phase components of the slurry has been established. It has been shown that silver in the sludge cinder is present in three forms sulfate, chloride and in the metallic form. The concentration of silver sulfate increases with increasing firing temperature, the process of silver sulfatization occurs due to lead sulfate present in the slime. On the basis of the obtained information the ways of creation of hydrometallurgical technology of sludge processing are outlined.

Go to volume 152


  1. Суворовская Н.А. Технический анализ в цветной металлургии / Н.А.Суворовская, В.И.Литов. М.: Металлургиздат,1957; Филлипова Н.А. Фазовый анализ руд и продуктов их переработки. М.: Химия, 1975.

Similar articles

Impact of drive properties on excavation machine loads
2002 D. A. Zadkov
Ferroresonance phenomena in transformer-capacitor compensators of combined action
2002 O. B. Shonin, E. A. Boitsova
Gravity processes on the slopes of the Slavyanka river valley (in Pavlovsky Park)
2002 G. B. Pospekhov
World nickel market forecasts
2002 D. V. Moskovkin
Granite Crown of St. Petersburg
2002 A. G. Bogatyreva
Economic market culture in Russia: the difficulties of formation in the modern period
2002 E. G. Katysheva