江西金尾矿资源的性质与绢云母提取研究

TD951%TD924; 黄金矿山选矿中95％以上为尾矿,实现金尾矿综合利用的前提是充分查明其性质与特征.针对江西某金尾矿,采用XRF、XRD和化学分析手段,查明了金尾矿的化学成分;利用岩矿鉴定、EMPA和EDS分析等方法,研究了该物料的资源性质与矿物学特征,着重考察了动态分级-浮选工艺流程提取绢云母的效果.结果表明:该金尾矿中含金0.495 g/t,含银1.70g/t,且金以铁等氧化矿物中包裹金存在,占比58.18％,显微镜下未发现残余的金颗粒.金尾矿中SiO2、Al2O3分别为62.21％和13.54％,残余的矿物主要为石英、绢云母和方解石;绢云母多为细粒级产出,片径为0.01～0.2 m...

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Published in矿产综合利用 no. 3; pp. 1 - 8
Main Authors 罗立群, 张晓雪, 林永峰, 贾旭峰, 郑波涛, 魏晨曦
Format Journal Article
LanguageChinese
Published 武汉理工大学资源与环境工程学院,矿物资源加工与环境湖北省重点实验室,湖北武汉 430070%中国黄金集团江西金山矿业有限公司,江西 德兴 334213 01.06.2021
Subjects
绢云母
矿物学
金尾矿
浮选
资源性质
Online AccessGet full text
ISSN1000-6532
DOI10.3969/j.issn.1000-6532.2021.03.001

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Abstract TD951%TD924; 黄金矿山选矿中95％以上为尾矿,实现金尾矿综合利用的前提是充分查明其性质与特征.针对江西某金尾矿,采用XRF、XRD和化学分析手段,查明了金尾矿的化学成分;利用岩矿鉴定、EMPA和EDS分析等方法,研究了该物料的资源性质与矿物学特征,着重考察了动态分级-浮选工艺流程提取绢云母的效果.结果表明:该金尾矿中含金0.495 g/t,含银1.70g/t,且金以铁等氧化矿物中包裹金存在,占比58.18％,显微镜下未发现残余的金颗粒.金尾矿中SiO2、Al2O3分别为62.21％和13.54％,残余的矿物主要为石英、绢云母和方解石;绢云母多为细粒级产出,片径为0.01～0.2 mm,具有较好的回收前景.该试样筛析-0.074 mm 41.58％,残余含金矿物的单体解离度不高,含金矿物多赋存在比重较高的重矿物或金属矿物中,仍有部分提金潜力.提取绢云母采用Φ75 mm、沉砂嘴内径为6 mm的动态分级效果较好,经一粗二精一扫浮选工艺可以获得产率为11.61％,Al2O3含量为23.91％,Al2O3回收率为21.19％的较好指标.
AbstractList TD951%TD924; 黄金矿山选矿中95％以上为尾矿,实现金尾矿综合利用的前提是充分查明其性质与特征.针对江西某金尾矿,采用XRF、XRD和化学分析手段,查明了金尾矿的化学成分;利用岩矿鉴定、EMPA和EDS分析等方法,研究了该物料的资源性质与矿物学特征,着重考察了动态分级-浮选工艺流程提取绢云母的效果.结果表明:该金尾矿中含金0.495 g/t,含银1.70g/t,且金以铁等氧化矿物中包裹金存在,占比58.18％,显微镜下未发现残余的金颗粒.金尾矿中SiO2、Al2O3分别为62.21％和13.54％,残余的矿物主要为石英、绢云母和方解石;绢云母多为细粒级产出,片径为0.01～0.2 mm,具有较好的回收前景.该试样筛析-0.074 mm 41.58％,残余含金矿物的单体解离度不高,含金矿物多赋存在比重较高的重矿物或金属矿物中,仍有部分提金潜力.提取绢云母采用Φ75 mm、沉砂嘴内径为6 mm的动态分级效果较好,经一粗二精一扫浮选工艺可以获得产率为11.61％,Al2O3含量为23.91％,Al2O3回收率为21.19％的较好指标.
Author 张晓雪
罗立群
林永峰
魏晨曦
郑波涛
贾旭峰
AuthorAffiliation 武汉理工大学资源与环境工程学院,矿物资源加工与环境湖北省重点实验室,湖北武汉 430070%中国黄金集团江西金山矿业有限公司,江西 德兴 334213
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Author_FL Wei Chenxi
Zhang Xiaoxue
Luo Liqun
Jia Xufeng
Zheng Botao
Lin Yongfeng
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Keywords 绢云母
矿物学
金尾矿
浮选
资源性质
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PublicationTitle 矿产综合利用
PublicationTitle_FL Multipurpose Utilization of Mineral Resources
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Publisher 武汉理工大学资源与环境工程学院,矿物资源加工与环境湖北省重点实验室,湖北武汉 430070%中国黄金集团江西金山矿业有限公司,江西 德兴 334213
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