有色金属科学与工程2025，Vol.16Issue(1)：96-103,8.DOI:10.13264/j.cnki.ysjskx.2025.01.011
汽车尾气废三元催化剂溶样与贵金属的精准测定
Accurate determination of three-way catalyst dissolution samples and precious metals of automobile exhaust waste
摘要
Abstract
The three-way catalyst(TWC)of automobile exhaust waste has a huge proportion of precious metal recycling resources,which not only has important environmental significance for its recycling,but also has extremely high economic value.However,the content of Pt,Pd and Rh in the three-way catalyst of automobile exhaust waste is low and the distribution is uneven,which leads to inaccurate detection results and large errors,which is the main problem faced by the research on the recovery of precious metals.In this study,we focused on the sampling methods and dissolution methods of platinum,palladium and rhodium in automobile exhaust waste three-way catalysts,and the samples were subjected to conventional acid solubilization,microwave digestion and alkali roasting,respectively.The results showed that compared with other methods,the microwave digestion had the best effect,the sample was completely dissolved,and the inductively coupled plasma spectroscopy(ICP-AES)was used for detection and analysis,and the measured Pt,Pd and Rh contents were stable and accurate.This study is of great significance for the recovery of secondary precious metal resources,and also provides a reference for the accurate detection of platinum,palladium and rhodium contents in automobile exhaust waste catalysts.关键词
汽车尾气废三元催化剂/贵金属/取样/酸溶/微波消解/碱焙烧Key words
three-way catalyst for automobile exhaust waste/noble metal/sampling/acid-soluble/microwave digestion/caustic roasting分类
矿业与冶金引用本文复制引用
赵宁辛,王才平,田磊,李金辉,王翀,郁丰善,陈丽杰..汽车尾气废三元催化剂溶样与贵金属的精准测定[J].有色金属科学与工程,2025,16(1):96-103,8.基金项目
国家自然科学基金资助项目(52064021) （52064021）
江西省自然科学基金重点项目(20232ACB204016) （20232ACB204016）
江西省主要学科学术与技术带头人-青年人才培养计划(20204BCJL23031) （20204BCJL23031）
上饶市"揭榜挂帅"科技计划项目(2022A005) （2022A005）
横峰县凯怡实业有限公司横向课题(2022360702007502A) （2022360702007502A）
江西理工大学清江青年英才支持计划资助项目(JXUSTQIBI2020004) （JXUSTQIBI2020004）
