Investigation on indium content in the most important Iran's Zinc and Lead deposits and pretreatment of it

Category Mineral processing
Group GSI.IR
Location The 25 Symposium of Geosciences
Author M.Abdollahi-M.Karami-A.Khodadadi
Holding Date 02 July 2007
 

Investigation on indium content in the most important Iran's Zinc and Lead deposits and pretreatment of it

Abstract:

Indium (In), with atomic number 49 which is part of the group 13 in the periodic table, is one of the strategic metals. Broad applications of indium in electronic industries, alloys production, nuclear reactor control-rod alloys and military industries, caused an increase in demand and price in recent years. Indium is always recovered as a by-product of extractive circuits of some base metals, and sphalerite is the most important indium-containing mineral. Iran with its abundant zinc and lead resources (more than 30 million tons), has the potential of considerable amounts of indium. In this study, extraction processes of indium from zinc and lead deposits were investigated. Also, important Iran’s zinc and lead mines and deposits from the indium point of view were evaluated and analyzed. Results showed that sphalerite concentrate of plants Bama, Kushk and generated slag in Angooran plant, contain 40, 20 and 7 gr/ton Indium, respectively. In addition, primary experiments of indium leaching for Bama’s roasted sphalerite concentrate showed that under 5 M acid concentration, temperature 90 °C, 3 hours and pulp density 100 gr/l conditions, about 84 % of indium contained in the concentrate was dissolved.

Keywords: Indium, Iran’s Zinc and Lead deposits, Bama plant, Kushk plant

tags: QAZVIN