| PDP废电子浆料中银的回收及其含量分析 |
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| 引用本文： | 孙蓉,刘君玉,庄志红,康明.PDP废电子浆料中银的回收及其含量分析[J].西南科技大学学报,2012,27(1):25-28. |
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| 作者姓名： | 孙蓉 刘君玉 庄志红 康明 |
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| 作者单位： | 1. 西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳,621010
2. 四川长虹工程技术中心,四川绵阳,621010 |
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| 基金项目： | 国家自然科学基金(10976023);西南科技大学教改项目(21910xn122) |
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| 摘 要： | 为了回收PDP(等离子显示屏)废电子浆料中的银,实验采用X荧光光谱仪、元素分析仪以及佛尔哈德法(Volhard法)分析其中元素组成及其含量,得到PDP废电子浆料中的银含量为86.20%。采用熔融法回收银,并通过正交实验,确定样品中银回收的最佳实验条件为:还原温度400℃,保温时间3 h,熔融温度1 000℃。银回收率为99.69%,纯度为99.74%。通过XRD分析验证说明回收银产品中含银元素。这种银回收方法工艺简单,环境污染小,易于工业化生产。
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| 关 键 词： | PDP(等离子显示屏) 废电子浆料 熔融法 回收率 纯度 |
The Recycle Ag and Analyse Its Content from Wasted PDP Electronic Pastes |
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| SUN Rong,LI U Jun-yu,ZHUANG Zhi-hong,KANG Ming.The Recycle Ag and Analyse Its Content from Wasted PDP Electronic Pastes[J].Journal of Southwest University of Science and Technology,2012,27(1):25-28. |
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| Authors: | SUN Rong LI U Jun-yu ZHUANG Zhi-hong KANG Ming |
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| Institution: | 1(1.State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology,Mianyang 621010,Sichuan,China; 2.Sichuan Changhong Engineering Technology Center,Mianyang 621010,Sichuan,China) |
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| Abstract: | In order to recycle silver from wasted PDP electronic pastes,X-ray fluorescence spectrometer(XRF),Element analyzer and Volhard method was used to analyze raw material’s elements components and Ag content is 86.20%.Using melting method recycle silver,and the best experimental conditions was confirmed by orthogonal experiment: reduction temperature is 400 ℃,holding temperature time is 3 h,melting temperature is 1000 ℃.The recovery of silver is 99.69%,and the purity is 99.74%.Result of XRD shows that silver element exists in product.This silver recycling method process is simple,with slight environment pollution and easy industrial production. |
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| Keywords: | PDP Wasted electronic pastes Melting method Recovery Purity |
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