|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb2+ as Zero-Valent Pb by Cementation
| Title: | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb2+ as Zero-Valent Pb by Cementation |
| Authors: | Aikawa, Kosei Browse this author | | Ito, Mayumi Browse this author →KAKEN DB | | Kusano, Atsuhiro Browse this author | | Jeon, Sanghee Browse this author →KAKEN DB | | Park, Ilhwan Browse this author →KAKEN DB | | Hiroyoshi, Naoki Browse this author →KAKEN DB |
| Keywords: | flotation | | complex sulfide ores | | sphalerite | | anglesite | | extraction | | cementation |
| Issue Date: | Jun-2022 |
| Publisher: | MDPI |
| Journal Title: | Minerals |
| Volume: | 12 |
| Issue: | 6 |
| Start Page: | 723 |
| Publisher DOI: | 10.3390/min12060723 |
| Abstract: | The presence of anglesite (PbSO4) in complex sulfide ores negatively affects the separation of Cu-Pb sulfides and sphalerite (ZnS) due to lead activation, and PbSO4 rejected to tailings dams contaminates the surrounding environment with lead. To address these problems, this study investigated the application of ethylene diamine tetra acetic acid (EDTA) pretreatment extracting PbSO4 to ZnS flotation and the recovery of the extracted Pb2+ as zero-valent Pb by cementation using zero-valent iron (ZVI). The application of EDTA pretreatment could extract similar to 99.8% of PbSO4, thus depressing ZnS floatability from 82% to 30%. In addition, cementation using ZVI could recover similar to 99.7% of Pb2+ from the leachate of EDTA pretreatment. |
| Rights: | © 2022 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). |
| Type: | article |
| URI: | http://hdl.handle.net/2115/86447 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
|
