Review of gold leaching in thiosulfate-based solutions

XIE Feng, J Chen, W Jian, W Wei - … of Nonferrous Metals Society of China, 2021 - Elsevier
Numerous non-cyanide leaching lixiviants have been developed, among which thiosulfate is
considered the most promising alternative to cyanide due to its non-toxicity, low price, high …

A review of thiosulfate leaching of gold: Focus on thiosulfate consumption and gold recovery from pregnant solution

B Xu, W Kong, Q Li, Y Yang, T Jiang, X Liu - Metals, 2017 - mdpi.com
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 …

Magnetic adsorbent of Fe3O4@ SiO2 core-shell nanoparticles modified with thiol group for chloroauric ion adsorption

R Roto, Y Yusran, A Kuncaka - Applied Surface Science, 2016 - Elsevier
The magnetic adsorbent of Fe 3 O 4@ SiO 2 core-shell nanoparticles modified with thiol
group was synthesized for chloroauric ([AuCl 4]−) adsorption. The Fe 3 O 4 nanoparticles …

Precious metals recovery from waste printed circuit boards using thiosulfate leaching and ion exchange resin

S Gámez, K Garcés, E de la Torre, A Guevara - Hydrometallurgy, 2019 - Elsevier
Precious metals recovery from secondary sources is a novel alternative since they hold
higher contents of several metals than average ores. In this research gold and silver were …

Bioavailability of silver and silver sulfide nanoparticles to lettuce (Lactuca sativa): Effect of agricultural amendments on plant uptake

CL Doolette, MJ McLaughlin, JK Kirby… - Journal of hazardous …, 2015 - Elsevier
Silver nanoparticles (AgNPs) can enter terrestrial systems as sulfidised AgNPs (Ag 2 S-NPs)
through the application of biosolids to soil. However, the bioavailability of Ag 2 S-NPs in …

A review of ammoniacal thiosulfate leaching of gold: An update useful for further research in non-cyanide gold lixiviants

XM Zhang, G Senanayake - Mineral Processing and Extractive …, 2016 - Taylor & Francis
This literature review provides an update of ammoniacal thiosulfate as a potential lixiviant of
gold, the history of thiosulfate leaching and recent progress on thiosulfate leaching of gold …

A review of environmentally friendly gold lixiviants: Fundamentals, applications, and commonalities

J Li, J Kou, C Sun, N Zhang, H Zhang - Minerals Engineering, 2023 - Elsevier
Gold is mainly extracted by cyanidation; however, cyanide is not only highly toxic to
organisms but is also not a very effective lixiviant for refractory gold ores. Environmentally …

A review of factors affecting gold leaching in non-ammoniacal thiosulfate solutions including degradation and in-situ generation of thiosulfate

O Sitando, G Senanayake, X Dai, AN Nikoloski… - Hydrometallurgy, 2018 - Elsevier
Cyanide has been used for more than a century as a preferred lixiviant for extracting gold
from ores and concentrates. While cyanide is very effective in treating certain ores and …

A colorimetric immunoassay based on cobalt hydroxide nanocages as oxidase mimics for detection of ochratoxin A

H Zhu, Z Quan, H Hou, Y Cai, W Liu, Y Liu - Analytica Chimica Acta, 2020 - Elsevier
Oxidase nanozymes have attracted particular attention in colorimetric immunoassay due to
their high activity, stability, and biocompatibility. In this work, the well-dispersed Co (OH) 2 …

Hexaamminecobalt (III) catalyzed thiosulfate leaching of gold from a concentrate calcine and gold recovery from its pregnant leach solution via resin adsorption

Y Zhang, B Xu, Y Zheng, Q Li, Y Yang, X Liu, T Jiang… - Minerals …, 2021 - Elsevier
Co (II) is effective in catalyzing gold thiosulfate leaching, but Co (III) has seldom been
adopted directly as the catalyst. This paper examined the effect of hexaamminecobalt (III) on …