| 火试金重量法测定银量的修正——熔渣及灰皿二次试金法 |
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| 引用本文： | 柳华丽,赵可迪,芦新根,赵凯,肖千鹏,阚春海.火试金重量法测定银量的修正——熔渣及灰皿二次试金法[J].黄金,2020,41(7):81-83. |
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| 作者姓名： | 柳华丽 赵可迪 芦新根 赵凯 肖千鹏 阚春海 |
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| 作者单位： | 长春黄金研究院有限公司;长春黄金研究院有限公司;国家金银及制品质量监督检验中心(长春) |
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| 摘 要： | 国家标准火试金重量法测定不同样品中的银量时,需回收熔渣和灰皿中的银对测定结果进行修正。实验采用熔渣及灰皿二次试金法对火试金重量法测定银量进行修正,考察了不同材质灰皿二次样品的配料、取样量及灰吹用灰皿材质等,确定了最佳条件,并对矿石、银精矿、铅阳极泥等3种不同性质样品进行测定,结果表明方法的精密度和准确度良好,适用性强。
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| 关 键 词： | 火试金重量法 银 修正 二次试金 熔渣 灰皿 取样量 |
Calibration of silver content determination by fire assay gravimetric method--Secondary assay by slag and cupel |
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| Liu Huali,Zhao Kedi,Lu Xingen,Zhao Kai,Xiao Qianpeng,Kan Chunhai.Calibration of silver content determination by fire assay gravimetric method--Secondary assay by slag and cupel[J].Gold,2020,41(7):81-83. |
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| Authors: | Liu Huali Zhao Kedi Lu Xingen Zhao Kai Xiao Qianpeng Kan Chunhai |
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| Affiliation: | (Changchun Gold Research Institute Co.,Ltd.;National Quality Supervision and Inspection Center for Gold and Silver Products(Changchun)) |
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| Abstract: | The silver content determination results need calibration by recovering the silver from the slag and cupel when national standard fire assay gravimetric method is used to determine the silver content in different samples.In the test,the secondary assay by slag and cupel is used to calibrate the silver content determined by fire assay gravimetric method,investigate the materials blending,sampling amount of secondary sample and cupel materials for cupels with different materials,and determine the optimal conditions.3 different samples,namely ore,silver concentrate and lead anode slime are determined.The results show that the precision and accuracy of the method,as well as the applicability,are good. |
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| Keywords: | fire assay gravimetric method silver calibration secondary fire assay slag cupel sampling amount |
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