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Current Status on Gold Smelting Technology  

Kim, Byung-Su (Mierals & Materials Processing Division, Korea Institute of Geoscience & Mineral)
Kim, Chi-Kwon (Mierals & Materials Processing Division, Korea Institute of Geoscience & Mineral)
Sohn, Jeong-Soo (Mierals & Materials Processing Division, Korea Institute of Geoscience & Mineral)
Publication Information
Resources Recycling / v.16, no.3, 2007 , pp. 3-11 More about this Journal
Abstract
Presently, most of gold is smelted from gold concentrates and anode slimes. Anode slimes are by-products of nonferrous smelters such as lead and copper. In addition, gold is recovered from waste dental and medical materials, waste gold coating solution, and waste printed circuit boards (waste PCBs). The smelting method of gold from gold concentrates and various wastes containing high concentration of gold is largely divided into chlorination, cyanidation, and amalgamation methods. For the anode slimes, electrolysis method is usually used, which largely consists of roasting, high temperature melting and electrolysis processes. Also, various wastes containing low concentration of gold are mainly treated by pyrometallursical processes. In the paper, current status on gold smelting technology is reviewed, and a novel process for gold smelting which is researched in the recent is briefly introduced.
Keywords
Gold; Smelting; Anode slime; High temperature melting; Electrolysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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