Patent 2011360586

Energy efficient recovery of precious metals and base metals

Abstract

This invention relates to an energy efficient process for recovering Base Metals and Precious Metals from ore or concentrate, the process including the steps of constructing a heap (10) comprising ore and/or concentrate containing Base Metals and Precious Metals, and leaching and removing Base Metals by inoculating the heap with inocula of thermophilic bacteria and archaea and bioleaching the ore and/or concentrate in an exothermic process; and thereafter leaching the heap (12) with aqueous cyanide solution (32) which has been heated to temperature above 40°C and below 90°C by solar panels (14) to remove Precious Metals from the heap in a leachate solution (26).

Information

Australian application number
2011360586
Country
ZA
Status
Lapsed
Type
Standard
Applicant
Western Platinum Ltd, LTD (ZA)
Application year
2013

International Patent Classification (IPC) codes