中亚难处理含砷含碳金精矿的提金试验研究

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关键词：难处理金精矿；脱硫；脱砷；脱碳；浓酸浸出；氰化浸出中图分类号：TD953 文献标识码：A 文章编号：1008-9500(2025)06-0001-06DOI:10.3969/j.issn.1008-9500.2025.06.001

Experimental Study on Gold Extraction from Refractory Arsenic and Carbon Containing Gold Concentrates in Central Asia

JINRangong,GAOChong,RENKun,HUANGHaihui,WANGWeizhen (BGRIMM Technology Group Co.,Ltd.,Beijing100160,China)

Abstract:Gold extraction experiments areconductedonarefractoryarsenicand carboncontaining goldconcentrate from CentralAsia.This typeof gold mineistreatedusing thecommonroastingcyanidemethod,withagoldrecoveryrateof only 84.26% .The main reason is that iron minerals contain ahigh proportionof gold,which makes itimpossible torecover this partofthegold.Basedontheactualconditionsof thelocal industry,atreatmentprocessofroastingdesulfurization, dearsenicanddecarbonization-concentratedacid shearing toremoveencapsulation-cyanideleaching is proposed,which notonlyimproves therecoveryrateof gold,butalsosolvestheproblemoflocalsulfuricacidbeingunabletobeabsorbed. Research has shown that gold concentrate is first subjected to oxidative roasting at atemperature of 600 C for 2 h,then the roasted sand is acid leached at a temperature of 90 C for 2.5h with a sulfuric acid concentration of 50% ,finally,cyanide treatment is performed on the acid leaching residue,resulting ina gold leaching rate of 93.93% ：

Keywords:refractorygoldconcentrate;desulphurization;dearsenic;decarbonization;concentratedacid leaching;cyanide leaching

随着我国工业走出去的步伐越来越快，资源换项目成果越来越多。（剩余10002字）