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2010•Multipurpose Utilization of Mineral ResourcesRequires access

An Experimental Study on Floatability of a Low-grade Oxidized Gold Ore

Wang Xiu-fen

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Abstract

The ore is a low-grade oxidized gold ore.By means of activating the minerals containing gold to make them easier floated.After flotation concentration,a gold concentrate of 21.75g/t Au was obtained with a recovery of 78.46%.Under the condition of direct cyanide leaching of flotation concentrate,the leaching rate of gold achieved 97.62%,and the total gold recovery of flotation and cyanide leaching processes reached 76.59%.Thus,it is believed that by adopting the combined flowsheet of mineral processing and metallurgy,it is possible to realize comprehensive exploitation and utilization of similar kinds of low-grade gold mineral resources.

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What this paper is about

The ore is a low-grade oxidized gold ore.By means of activating the minerals containing gold to make them easier floated.After flotation concentration,a gold concentrate of 21.75g/t Au was obtained with a recovery of 78.46%.Under the condition of direct cyanide leaching of flotation concentrate,the leaching rate of gold achieved 97.62%,and the total gold recovery of flotation and cyanide leaching processes reached 76.59%.Thus,it is believed that by adopting the combined flowsheet of mineral processing and metallurgy,it is possible to realize comprehensive exploitation and utilization of similar kinds of low-grade gold mineral resources.

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Available abstract

The ore is a low-grade oxidized gold ore.By means of activating the minerals containing gold to make them easier floated.After flotation concentration,a gold concentrate of 21.75g/t Au was obtained with a recovery of 78.46%.Under the condition of direct cyanide leaching of flotation concentrate,the leaching rate of gold achieved 97.62%,and the total gold recovery of flotation and cyanide leaching processes reached 76.59%.Thus,it is believed that by adopting the combined flowsheet of mineral processing and metallurgy,it is possible to realize comprehensive exploitation and utilization of similar kinds of low-grade gold mineral resources.

Key concepts: Gold ore, Leaching (pedology), Metallurgy, Mineral processing, Cyanide, Gold extraction, Gold cyanidation, Hydrometallurgy

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