甘肃早子沟金矿石工艺矿物学研究

甘肃早子沟金矿为典型卡林型金矿,该矿含金4.09 g/t,锑0.46%,砷0.39%,主要金属矿物有黄铁矿、毒砂、辉锑矿和褐铁矿,非金属矿物主要有石英、碳酸盐矿物和绢云母,矿石中矿物组成较复杂,但是除金及辉锑矿以外其他元素均无回收价值.矿石中的金矿物主要为自然金,相对质量分数为99.12%,除分布在脉石中的金,辉锑矿是金的重要载体.自然金粒度不均匀,经统计的颗粒全部小于0.075 mm,未发现粗粒金.工艺矿物学研究表明,该矿石难于选冶的主要原因为易泥化矿物、包裹金及含砷锑等耗氰矿物较多....

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Published in东北大学学报（自然科学版） Vol. 38; no. 5; pp. 711 - 715
Main Author 董再蒸 高鹏 张淑敏 韩跃新
Format Journal Article
LanguageChinese
Published 东北大学 新材料技术研究院, 辽宁 沈阳 110819%东北大学 资源与土木工程学院,辽宁 沈阳 110819 2017
东北大学 资源与土木工程学院,辽宁 沈阳 110819
山东招金集团有限公司,山东 招远 265400%东北大学 资源与土木工程学院,辽宁 沈阳,110819
Subjects
卡林型金矿
嵌布特性
工艺矿物学
早子沟金矿石
赋存状态
工艺矿物学
卡林型金矿
occurrence state
赋存状态
process mineralogy
dissemination characteristics
早子沟金矿石
嵌布特性
Carlin-type gold ores
Zaozigou gold ores
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ISSN1005-3026
DOI10.3969/j.issn.1005-3026.2017.05.021

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Summary:甘肃早子沟金矿为典型卡林型金矿,该矿含金4.09 g/t,锑0.46%,砷0.39%,主要金属矿物有黄铁矿、毒砂、辉锑矿和褐铁矿,非金属矿物主要有石英、碳酸盐矿物和绢云母,矿石中矿物组成较复杂,但是除金及辉锑矿以外其他元素均无回收价值.矿石中的金矿物主要为自然金,相对质量分数为99.12%,除分布在脉石中的金,辉锑矿是金的重要载体.自然金粒度不均匀,经统计的颗粒全部小于0.075 mm,未发现粗粒金.工艺矿物学研究表明,该矿石难于选冶的主要原因为易泥化矿物、包裹金及含砷锑等耗氰矿物较多.
Bibliography:21-1344/T
DONG Zai-zheng1,2,GAO Peng1 ,3,ZHANG Shu-min1,HAN Yue-xin1（1. School of Resources ＆ Civil Engineering,Northeastern University,Shenyang 110819,China; 2. Institute of Advanced Material Technology,Northeastern University,Shenyang 110819,China; 3. Shandong Zhaojin Group Co., Ltd.,Zhaoyuan 265400, China. ）
The samples collected from Zaozigou gold mine in Gansu Province can be considered as typical Carlin-type gold deposits. The Au,Sb, and As contents of the ore are 4. 09 g / t, 0. 46% and 0. 39 % ,respectively. It was found that the main metallic minerals in the gold ore are pyrite,arsenopyrite,stibnite and limonite. The primary gangue minerals are quartz,carbonate minerals and sericite. Mineral composition of the ore is complex,however,gold and antimony are the only useful minerals. The gold minerals in the ore are mainly native gold with the relative content of 99.12% . In addition to gold distributed in the gangue minerals,stibnite is an important carrier of gold. Particle size of native gold is tiny le
ISSN:1005-3026
DOI:10.3969/j.issn.1005-3026.2017.05.021