Results 1 to 10 of about 702,238 (308)

Photosynthesis of Au/TiO2 nanoparticles for photocatalytic gold recovery from industrial gold-cyanide plating wastewater [PDF]

open access: yesScientific Reports, 2022
A series of Au x /TiO2 nanoparticles (NPs) with different gold loadings (x = 0.1–1.0 wt%) was synthesized by the photodeposition and then employed as photocatalysts to recover precious component from the industrial gold-cyanide plating wastewater ...
Naphaphan Kunthakudee   +3 more
doaj   +2 more sources

Structural modification of defective WO3 by g-C3N4 for photocatalytic gold recovery from non-cyanide-based plating effluent [PDF]

open access: yesScientific Reports
A set of nCN/WO3 − x composites was synthesized through a simple thermal treatment for gold recovery from the simulated effluent of a non-cyanide-based plating bath.
Pimchanok Longchin   +5 more
doaj   +2 more sources

Roasting temperature effect on the recovery of refractory gold and silver in pyrite concentrates [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
Pyrite concentrates with refractory gold and silver were roasted at different temperatures to improve the recovery of the metals by cyanide leaching.
Zhang Y.-P.   +5 more
doaj   +1 more source

Study of an Environmentally Friendly Method for the Dissolution of Precious Metal with Ionic Liquid and Iodoalkane

open access: yesMetals, 2021
Gold as a precious metal resource has high recycling significance. However, the current extraction methods cannot achieve the both efficiency and environmental friendliness.
Feng Feng   +10 more
doaj   +1 more source

Extraction of Gold Based on Ionic Liquid Immobilized in UiO-66: An Efficient and Reusable Way to Avoid IL Loss Caused by Ion Exchange in Solvent Extraction

open access: yesMolecules, 2023
Ionic liquids (ILs) have received considerable attention as a promising green solvent for extracting metal ions from aqueous solutions. However, the recycling of ILs remains difficult and challenging because of the leaching of ILs, which is caused by the
Xinyu Cui   +4 more
doaj   +1 more source

Optimizing Gold Recovery of Artisanal Mining: A Lesson Learned from Kenya

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2022
The metallurgical testings to treat the Kenyan artisanal gold mining samples were performed with several processes such as gravity concentration (i.e., Knelson Concentrator and panning), flotation, and cyanidation or leaching.
Izzan Nur Aslam   +3 more
doaj   +1 more source

Mineragraphic evaluation for gold recovery

open access: yesIngeniería Investigación y Tecnología, 2023
Minerals processed in a mining-metallurgical plant are subject to constant change related to the degree of exploitation of the deposit. This behavior is distinguished by the shift in the mineralogical species present within the mineral that enters the processing plant; these changes can produce deficiencies in the beneficiation of the mineral and the ...
Alvaro Fernando Soto Mayorga   +3 more
openaire   +1 more source

Technoeconomic Assessment of Organic Halide Based Gold Recovery from Waste Electronic and Electrical Equipment

open access: yesResources, 2021
Waste Electronic and Electrical Equipment (WEEE) is one of the fastest growing waste streams worldwide, with significant economic value due to the precious metals contained within.
Jamie Wordsworth   +4 more
doaj   +1 more source

A Review of Thiosulfate Leaching of Gold: Focus on Thiosulfate Consumption and Gold Recovery from Pregnant Solution

open access: yesMetals, 2017
Thiosulfate leaching is a promising alternative to cyanidation, and the main hindrances for its wide commercial application are the high thiosulfate consumption and the difficult recovery of dissolved gold.
Bin Xu   +5 more
doaj   +1 more source

Synthesis of MnO2 nanowires adsorbent for gold recovery from electroplating wastewater using Taguchi method [PDF]

open access: yesشیمی کاربردی روز, 2016
In this study, MnO2 nanowire adsorbent was synthesized by low cost preparation method that was capable of extracting gold form diluted jewellery waste water solutions. Diï‌€erent adsorption parameters like number of treatment, hold time, pH and agitation
مبینا علیمحمدی   +1 more
doaj   +1 more source

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