铜阳极泥脱铜渣中金、银、钯含量测定

doi:10.16085/j.issn.1000-6613.2017-1825

化工进展 ›› 2018, Vol. 37 ›› Issue (07): 2854-2859.DOI: 10.16085/j.issn.1000-6613.2017-1825

铜阳极泥脱铜渣中金、银、钯含量测定

王豪¹, 蹇瑞红², 刘维桥¹, 潘君丽¹, 刘玉海¹, 周全法¹

1 江苏理工学院化学与环境工程学院, 江苏常州 213000;
2 中国石油抚顺石油化工公司催化剂厂, 辽宁抚顺 113008

收稿日期:2017-08-31 修回日期:2017-11-07 出版日期:2018-07-05 发布日期:2018-07-05
通讯作者: 刘维桥,教授,研究方向为资源回收及利用。
作者简介:王豪(1990-),男,硕士研究生。
基金资助:
江苏省产学研前瞻性联合研究项目（BY2016030-21）及江苏理工学院人才引进项目（kyy16025）。

Determination of gold, silver and palladium in copper anode low grade copper slag

WANG Hao¹, JIAN Ruihong², LIU Weiqiao¹, PAN Junli¹, LIU Yuhai¹, ZHOU Quanfa¹

1 School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213000, Jiangsu, China;
2 PetroChina Fushun Petrochemical Company Catalyst Plant, Fushun 113008, Liaoning, China

Received:2017-08-31 Revised:2017-11-07 Online:2018-07-05 Published:2018-07-05

摘要/Abstract

摘要： 建立了连续测定铜阳极泥脱铜渣中金、银、钯含量的分析方法，并与火试金法进行比较。首先，利用硝酸+乙二胺四乙酸（EDTA）+酒石酸消解铜阳极泥脱铜渣，得到含有银、钯和少量金的消解液，考察了硝酸、EDTA和酒石酸用量对消解效果的影响。结果表明，硝酸、EDTA和酒石酸用量分别为30mL、3mL、1.5g时，消解效果最好。然后，利用王水对残渣进行二次消解，得到含有金和少量银、钯的消解液，考察了王水用量对消解效果的影响。结果表明，王水用量为15mL时即可完成消解。最后采用火焰原子吸收光谱仪测定消解液中的金、银、钯含量。采用本方法测定铜阳极泥脱铜渣，Au、Ag、Pd各元素相对标准偏差均小于1%（n=10），加标回收率在95.57%～98.70%之间，实验结果准确可靠、重现性好，与火试金法测定结果相一致。

关键词: 废物处理, 环境, 化学分析, 铜阳极泥脱铜渣, 金, 银, 钯

Abstract: The method of continuous determination of gold, silver and palladium in copper anode low grade copper slag was established and compared with the fire test method. First, the copper anode low grade copper slag was digested with nitric acid+EDTA+tartaric acid to obtain a digestion solution containing silver, palladium and a small amount of gold. The effects of nitric acid, EDTA and tartaric acid dosage on digestion were investigated. The results showed that the digestion was the best when the dosage of nitric acid, EDTA and tartaric acid were 30mL, 3mL and 1.5g, respectively. Then, the residue was subjected to secondary digestion with aqua regia to obtain a digestion solution containing gold and a small amount of silver and palladium. The effects of aqua regia dosage on digestion were investigated. The results showed that the amount of aqua regia required to complete the digestion was 15mL. Finally, the contents of gold, silver and palladium in digestion solution were determined by flame atomic absorption spectrometer. The relative standard deviations of Au, Ag and Pd in the copper anode low grade copper slag were less than 1% (n=10), and the recoveries were between 95.57% and 98.70% by this method. The experimental results are accurate, reliable and reproducible, which is consistent with the results of fire test method.

Key words: waste treatment, environment, chemical analysis, copper anode low grade copper slag, gold, silver, palladium

中图分类号:

O657.3

王豪, 蹇瑞红, 刘维桥, 潘君丽, 刘玉海, 周全法. 铜阳极泥脱铜渣中金、银、钯含量测定[J]. 化工进展, 2018, 37(07): 2854-2859.

WANG Hao, JIAN Ruihong, LIU Weiqiao, PAN Junli, LIU Yuhai, ZHOU Quanfa. Determination of gold, silver and palladium in copper anode low grade copper slag[J]. Chemical Industry and Engineering Progress, 2018, 37(07): 2854-2859.

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铜阳极泥脱铜渣中金、银、钯含量测定

Determination of gold, silver and palladium in copper anode low grade copper slag

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