摘要
为了给高硫高砷难浸金精矿提金工艺选择提供理论依据,分别从化学成分分析、X射线衍射分析、矿物解离度分析、扫描电镜-能谱分析等不同程度开展了工艺矿物学研究。发现:①金精矿中金含量47.5g.t-1、Ag8.46g.t-1、S13.91%(质量分数)、As7.54%(质量分数),是典型的高硫高砷难浸复杂金矿;②金精矿中的主要金属矿物为毒砂、黄铁矿,脉石矿物主要有石英、白云母,多种矿物互相包裹。金精矿中有害组分主要为砷,含砷矿物以毒砂形式出现。金以不可见金的形式赋存于载金矿物中。这些发现,对高硫高砷难浸金精矿的提金工艺具有指导意义。
In order to provide a theoretical basis for gold extraction process of high-sulfur and high-arsenic refractory gold concentrate,process mineralogy was studied from chemical composition analysis,XRD,MLA,and SEM-EDS.It was found that （1） the gold concentrate gold is a typical high-sulfur and high-arsenic refractory gold concentrate,containing gold 47.5 g· t-1,Ag 8.46 g· t-1,S 13.91% （mass fraction） and As 7.54% （mass fraction）; （2） Main metal minerals are arsenopyrite and pyrite.Gangue minerals are mainly quartz,muscovite.Harmful component in gold concentrate mainly is arsenic and arsenic mineral is in the arsenopyrite form.Gold occurs in the invisible form.This can instruct high-sulfur and high-arsenic refractory gold concentrate smelting process.
出处
《中国矿业》
北大核心
2010年第12期56-58,共3页
China Mining Magazine
基金
国家863项目(编号:2006AA06Z132)
关键词
高硫高砷
金精矿
工艺矿物学
赋存状态
物相
high-sulphur and high-arsenic
gold concentrate
process mineralogy
occurrence
phase
