Chalcopyrite leaching in novel lixiviants

IF Barton, JB Hiskey - Hydrometallurgy, 2022 - Elsevier
Chalcopyrite (CuFeS 2) makes up a large and increasing fraction of the world's future
copper resources, but is highly refractory to leaching with common lixiviants. Novel lixiviants …

Amino acids as lixiviants for metals extraction from natural and secondary resources with emphasis on glycine: A literature review

H Li, Z Deng, E Oraby, J Eksteen - Hydrometallurgy, 2023 - Elsevier
The past decade has seen significant interest in non-conventional lixiviants, particularly the
growing interest in organic acids and amino acids. Of the amino acids, glycine has much …

Efficient recovery of Cu and Ni from WPCB via alkali leaching approach

PR Jadhao, A Pandey, KK Pant, KDP Nigam - Journal of Environmental …, 2021 - Elsevier
The large generation of electronic waste (e-waste) is posing a serious threat to society. It is
important to develop sustainable technology for the effective management of e-waste and …

Selective complexation leaching of copper from copper smelting slag with the alkaline glycine solution: An effective recovery method of copper from secondary …

Y Huang, D Wang, H Liu, G Fan, W Peng… - Separation and …, 2023 - Elsevier
In the process of copper smelting, amounts of copper droplets inevitably enter the copper
smelting slag (CSS), resulting in a high loss of copper. As the grade of exploitable copper …

Copper extraction from waste printed circuit boards by glycine

Y Han, X Yi, R Wang, J Huang, M Chen, Z Sun… - Separation and …, 2020 - Elsevier
The metal recycling processes in the waste printed circuit boards (WPCBs) are mainly
pyrometallurgy and hydrometallurgy, whereas hydrometallurgy is considered as an efficient …

Leaching kinetics and reactivity evaluation of fly ash based on the synergistic effect of alkali and sulfate

H Wang, Y Wang, X Liu, Z Zhang - Journal of Building Engineering, 2023 - Elsevier
This work evaluates the reactivity of various minerals of fly ash based on the backscattered
electron images analysis (BSE-IA) method and discusses the influencing factors and kinetics …

Extraction of precious metals from waste printed circuit boards using cyanide-free alkaline glycine solution in the presence of an oxidant

H Li, E Oraby, J Eksteen - Minerals Engineering, 2022 - Elsevier
Waste printed circuit boards represent one of the most challenging parts of e-waste
recycling. The extraction of precious metals (gold, silver, palladium and platinum) from waste …

Leaching and ion exchange based recovery of nickel and cobalt from a low grade, serpentine-rich sulfide ore using an alkaline glycine lixiviant system

JJ Eksteen, EA Oraby, V Nguyen - Minerals Engineering, 2020 - Elsevier
The paper presents the outcomes of exploratory research relating to the atmospheric
pressure and ambient temperature leaching of nickel and cobalt from a Western Australian …

A comprehensive study on the extraction of transition metals from waste random access memory using acetic acid as a chelating solvent

A Preetam, A Modak, PR Jadhao, SN Naik… - Journal of …, 2022 - Elsevier
The reduced lifespan of electrical and electronic equipment results in the generation of
electronic waste (e-waste), one of the fastest-growing solid waste streams. A systematic and …

[HTML][HTML] Dissolution of pure chalcopyrite with manganese nodules and waste water

N Toro, K Pérez, M Saldana, RI Jeldres… - Journal of Materials …, 2020 - Elsevier
Chalcopyrite is the most abundant copper ore and, consequently, the most utilised to
produce metallic copper. The main route of treatment is through pyrometallurgical …