Paper Title:
Recovery of Copper from Bio-Leaching Solutions of Waste Printed Circuit Boards Waste by Solvent Extraction Using RE609 and N902
  Abstract

According to the properties of bioleaching solutions of printed circuit boards (PCBs), copper(Ⅱ) in the leaching solution were recovery by solvent extraction with N902 and RE609. The influence of equilibration time,extractant concentration,O/A ratios,pH value on copper(Ⅱ) extraction and sulphuric acid concentration on copper(Ⅱ) stripping had been studied. Extraction of copper increased with increasing extractant concentration with both the extractants. More than 97.45% of copper can be extracted from a typical bioleaching solution of PCBs after copper extraction was carried out using 10% N902 diluted in kerosene at O/A ratio of 1:1, while 97.14% of copper can be extracted using 20% RE609 diluted in kerosene at O/A ratio of 1:1. The stripping of copper loaded N902 and RE609 increased with increasing H2SO4 concentration, but stripping of the latter was lower than the former.More than 93.57% and 90.29%of copper can be stripped from the loaded N902 and RE609 stripped at 1:1 phase ratio with 1.8 M H2SO4 in a single stage.

  Info
Periodical
Advanced Materials Research (Volumes 113-116)
Edited by
Zhenyu Du and X.B Sun
Pages
2228-2231
DOI
10.4028/www.scientific.net/AMR.113-116.2228
Citation
C. L. Zhang, W. D. Fang, Y. Chen, J. W. Wang, J. F. Bai, "Recovery of Copper from Bio-Leaching Solutions of Waste Printed Circuit Boards Waste by Solvent Extraction Using RE609 and N902", Advanced Materials Research, Vols. 113-116, pp. 2228-2231, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Jin Kim, D. Mishra, D.E. Ralph, Jong Gwan Ahn, Y.H. Rhee
Abstract:Bioleaching of pre-treated spent refinery catalyst was performed using sulfur and iron oxidizing bacteria separately. Both the mixed...
119
Authors: Mei Lin Liu, Ren Man Ruan, Jian Kang Wen, Dian Zuo Wang
Abstract:In this study, the viscosities and conductivities of bioleaching solution were determined by Ubbelohde viscometer and conductivity meter,...
149
Authors: E. Zhou, Jian Kang Wen, Ren Man Ruan, Dian Zuo Wang
Abstract:Based on the bioleaching mechanism and electrochemical studies of covellite, the dissolution rate of covellite mineral is accelerated...
152
Authors: R. Ivănuş
Abstract:An experiment of lively biohydrometallurgical leaching of worn-out hydrogenation catalysts in an aerobic batch system with Thiobacillus...
341
Authors: Cheng Long Zhang, Jing Wei Wang, Jian Feng Bai, Wen Jie Wu
Abstract:Recently, a few studies have been undertaken for the extracting of metallic copper from electronic scrap/printed circuit boards by...
929