Sangyun Seo, Gwang Seop Lee
Solvent extraction (SX) is one of the most widely applied hydrometallurgical processes in copper production from oxide ore. As the high-grade ore deposits have been developed and depleted, now only low-grade ore deposits are being developed and are therefore facing obstacles of extreme processing conditions. This results in leaching gangue minerals and requires a more complicated solvent extraction system. Recently, synergistic solvent extraction has been introduced to separate copper from the leached solution with high impurities. However, operational obstacles arise due to the complicated solvent extraction process, including multi-stages of extraction, and using more than one extractant in a single solvent extraction system. The phase separation in solvent extraction is one of the major issues in field operation. A poor phase separation could affect the entire process and eventually cause production loss. Therefore, in this study, the phase separation behaviours were studied in consideration of the field operation. Major parameters considered in the study were the type of diluent, temperature, mixing speed, solution pH and Oxidation Reduction Potential (ORP), and addition of impurities (flocculant and colloidal silica). The phase separation behaviours in the continuous counter-current SX system using a pilot-scale mixer-settler in the above conditions was investigated.
@article{cbb52170-93a7-4c70-a4a7-95bf40a516b1,
title={Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime‐Type Extractants for the Field Operation},
author={Sangyun Seo and Gwang Seop Lee},
year={2021},
language={en}
}TY - JOUR TI - Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime‐Type Extractants for the Field Operation AU - Sangyun Seo AU - Gwang Seop Lee PY - 2021 LA - en ER -
Copper solvent extraction units at large hydrometallurgical plants face constraints in metal recovery, phase disengagement, and reagent consumption, d
MBUYA ILUNGA Bienvenu, TSHIBANDA NTAKAMUTSHI Patrick, MUHUNGU TSHUYI Symphorien, KAWAMA NGOIE Francis, KASONGO KALENGA Gigi, NKULU WA NGOIE Guy
The current technological and economic constraints impose the development of efficient and eco-friendly processes for the simultaneous treatment of su
Ionela Birloaga, Ida De Michelis, Francesco Ferella, Mihai Buzatu, Francesco Vegliò
This study investigates the hydrometallurgical recovery of copper and gold from waste printed circuit boards (WPCBs) using a sequential oxidative leac
Željko Kamberović, Marija Korać, Dragana Ivšić, Vesna Nikolić, Milisav Ranitović
Used electronic equipment became one of the fastest growing waste streams in the world. In the past two decades recycling of printed circuit boards (P
The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f
Mark E. Schlesinger, Matthew J. King
This book presents a comprehensive overview of the principles and practices of copper extraction metallurgy. The objective is to provide both a theore