Leaching of low grade sulfide copper ore by ferric sulfate

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

IRANCC20_735

تاریخ نمایه سازی: 28 اردیبهشت 1398

Abstract:

In this study, low grade sulfide copper leaching by ferric sulfate is investigated. The main copper containing mineral was chalcopyrite. Leaching of this mineral is so hardand a little amount of copper can be dissolved by conventional reagent. Ferric ion as an oxidant can be increased the copper dissolution. First, the sample was grindedand particle sizes reach to -300 micron. Then, the effects of reagent concentration and leaching time in the room temperature were optimized. Solid/liquid ratio was 1:10.XRD analysis and microscopic studies showed that qurtz, pyrite and clay minerals are the main minerals in the ore and a small amount of copper is accumulated in chalcopyrite and covelite. Atomic Absorption Spectroscopy (AAS) was used for copper and iron content of ore and final solution. According to the obtained results, optimum ferric sulfate was 0.01 M during the optimum leaching time of 2 h. Under the optimum conditions, about 30% of copper was extracted.

Authors

M.A. Shabani

Department of Mining & Metallurgical Eng., Amirkabir University of Technology, Tehran, Iran

M. Irannajad

Department of Mining & Metallurgical Eng., Amirkabir University of Technology, Tehran, Iran

B. Rezaei

Department of Mining & Metallurgical Eng., Amirkabir University of Technology, Tehran, Iran

z Manafi

Research & Development, Sarcheshmeh Copper Complex, Kerman, Iran