A RECOVERY TECHNOLOGY OF AG FROM COMPOSITE AG-CU ELECTRONIC WASTES

被引：0

作者：

Li, Jinhui ^{[1
]}

Xiong, Daoling ^{[1
]}

Chen, Hao ^{[1
]}

Wang, Ruixiang ^{[1
]}

Liu, Jun ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Mat & Chem Engn, Ganzhou 341000, Jiangxi, Peoples R China

来源：

EPD CONGRESS 2009, PROCEEDINGS | 2009年

关键词：

Electronic wastes; Ag-Cu Composite Materials; Orthogonal Tests; DISSOLUTION BEHAVIOR; AMMONIACAL SOLUTIONS; SILVER;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silver is a very important metal used in a wide range of applications. It is necessary to recovery of Ag from electronic wastes for increasing of Ag price and circumstance protection. For separating and recycling Ag from Ag-Cu composite materials, thermodynamic data of reaction is calculated and some experiments have been proceeded with Ag-Cu composite material scraps, time, temperature, nitric-sulfuric mixed acid volume ratio and the volume ration of mixed acid vs. water have been discussed. The results show that the optimization conditions is that nitric-sulfuric mixed acid volume ratio 5:95, volume ratio of mixed acid vs. water 10:1, temperature 55 degrees C, time 25min. In the conditions, Ag can be selectively leached from Cu-based composite material, Cu base is not eroded nearly,

引用

页码：1111 / 1116

页数：6

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