Challenges with elemental sulfur removal during the leaching of copper and zinc sulfides, and from the residues; a review
Sign Up to like & getrecommendations! Published in 2017 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2017.06.011
Abstract: Abstract The hydrometallurgical recovery of metal values from sulfide concentrates, such as chalcopyrite, enargite, and sphalerite, typically generates elemental sulfur in the oxidative leaching processes. The main disadvantage of the generation of sulfur is that… read more here.
Keywords: zinc; process; elemental sulfur; leaching copper ... See more keywords
Conversion of chalcopyrite to copper oxide in hypochlorite solution for selective leaching of copper in dilute sulfuric acid solution
Sign Up to like & getrecommendations! Published in 2018 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2018.05.002
Abstract: Abstract In the present study, development of a novel oxidation route to convert chalcopyrite to tenorite for leaching of copper has been described. Initially chalcopyrite was converted into tenorite/copper oxide (CuO) under alkaline region using… read more here.
Keywords: sulfuric acid; copper; copper oxide; dilute sulfuric ... See more keywords
Pressure leaching of copper sulphide from nickel refining: Initial experiments for valorisation
Sign Up to like & getrecommendations! Published in 2021 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2021.106820
Abstract: Abstract Copper sulphide rich leach residue from nickel refining is a marketable product and may be treated by smelting. In looking for another refining technology for its valorisation, the raw material was characterised and suitability… read more here.
Keywords: copper; copper sulphide; leaching copper; nickel refining ... See more keywords
Microwave-Leaching of Copper Smelting Dust for Cu and Zn Extraction
Sign Up to like & getrecommendations! Published in 2019 at "Materials"
DOI: 10.3390/ma12111822
Abstract: Industrial wastes may contain high concentrations of valuable metals. Extraction and recovery of these metals have several economic and environmental advantages. Various studies showed positive effects of microwaves as a pretreatment method before the leaching… read more here.
Keywords: extraction; leaching copper; valuable metals; microwave leaching ... See more keywords
Leaching of Copper Contained in Waste Printed Circuit Boards, Using the Thiosulfate—Oxygen System: A Kinetic Approach
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15072354
Abstract: The present work is related to the treatment of crushed waste of printed circuit boards (WPCBs) from electrical and electronic devices (WEEE), carrying out the recovery of copper in solution. In the first stage, the… read more here.
Keywords: system; copper; circuit boards; waste printed ... See more keywords