2010•Multipurpose Utilization of Mineral ResourcesRequires access

Research and Practice of Comprehensive Recovery of Gold from a Low-grade Gold Ore

WU Zhen-xiang

Abstract

Directed at the mineralogical composition,the ore structure and the gold occurrence state of a low-grade gold ore,the technology of heap leaching is adopted to process the low-grade gold ore.The optimal technological conditions for leap leaching are adopted by testing such conditions as permeability,CN-ion concentration and the effect of leaching time on leaching rate through column leaching.On such basis,large-scale heap leaching is successfully carried out,the result of which brings good economic and social benefits for the gold ore.

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Key concepts: Heap leaching, Gold ore, Leaching (pedology), Gold extraction, Metallurgy, Lixiviant, Environmental science, Materials science