Title: Ore Processing Methods of Tonglufang Gold Ore Deposits in Dangba,Sichuan Province
Abstract: Through many times of extraction experiments,the leachability and recovery rate of the gold concentrate can be highly increased by roasting pretreatment.After 24 hrs leaching the leaching rates of gold,silver and copper by thiourea leaching reach 99.4%,95.8% and 98.0%,respectively;and 99.4%,89.4% and 93.3% by cyanide leaching,respectively.So the optimal way of comprehensive utilization is by the following steps:the first step is to crash the raw ores to small pieces;the second is by ball milling of the small pieces of ores,and then dressing by flotation for enrichment.So,we can get gold,silver and copper concentrates,then through fluidized-bed roasting to get roasting sands which were used to reclaim copper by extraction and electrolysis,at last,to reclaim Au and Ag by thiourea leaching waste residue.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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