Chemical composition and liberation characterization of printed circuit board comminution fines for beneficiation investigations

被引：112

作者：

Ogunniyi, I. O. ^{[1
]}

Vermaak, M. K. G. ^{[1
]}

Groot, D. R. ^{[1
]}

机构：

[1] Univ Pretoria, Dept Mat Sci & Met Engn, ZA-0002 Pretoria, South Africa

来源：

WASTE MANAGEMENT | 2009年 / 29卷 / 07期

关键词：

D O I：

10.1016/j.wasman.2009.03.004

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Chemical composition and liberation are critical attributes in characterizing a resource stock for beneficiation investigations. Though end-of-life printed circuit board is recognized as a valuable secondary resource stock, no procedural standard exists for the determination of its chemical composition, nor for the -75 mu m fines generated during its comminution. The effect of the digestion procedure on the final assays in wet spectroscopic analyses was assessed in this work. Liberation was also explored against literature background. Determination of assays of all constituent elements in printed circuit board comminution fines was found to require comparison of data from more than one digestion condition, while composite particles still persist at the fines sizes, though very few. The discussion reflects how these impact the beneficiation investigations. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2140 / 2146

页数：7

共 30 条

[1]

[Anonymous], 2003, OFF J EUR UNION

[2]

[Anonymous], P EUR MET C DUSSELD

[3]

*ASTM, 2007, AN CHEM MET OR REL M, pE32

[4]

BABARA BK, 2003, SERIES MONOGRAPHS AN, V162, P227

[5] Mechanical recycling of waste electric and electronic equipment: a review [J].

Cui, JR ;

Forssberg, E .

JOURNAL OF HAZARDOUS MATERIALS, 2003, 99 (03) :243-263

[6] Brominated organic micropollutants - Igniting the flame retardant issue [J].

D'Silva, K ;

Fernandes, A ;

Rose, M .

CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2004, 34 (02) :141-207

[7]

Dunn B. D., 1998, Circuit World, V24, P21, DOI 10.1108/03056129810197206

[8] AN IODIZED MOUNTING MEDIUM FOR COAL PARTICLES [J].

GOMEZ, CO ;

STRICKLER, DW ;

AUSTIN, LG .

JOURNAL OF ELECTRON MICROSCOPY TECHNIQUE, 1984, 1 (03) :285-287

[9]

Goosey M, 2003, CIRCUIT WORLD, V29, P33, DOI 10.1108/03056120310460801

[10]

Goosey M., 2002, A Scoping Study End-of-Life Printed Circuit Boards Department of Trade and Industry

← 1 2 3 →