Research on the choice of the composition of the leaching solution during the extraction of gold by the method of underground leaching from used uranium wells [PDF]
E3S Web of Conferences, 2023 The use of sodium hypochlorite and thiourea as reagents-solvents for extracting gold from spent uranium deposits by underground leaching was determined as optimal based on the laboratory experiments. Activated carbon of the AG-3 grade has been determined
Alikulov Shukhrat +4 more
doaj +1 more source
Preliminary Study on Gold Recovery from High Grade E-Waste by Thiourea Leaching and Electrowinning
Minerals, 2021 The present paper is focused on the extraction of gold from high-grade e-waste, i.e., spent electronic connectors and plates, by leaching and electrowinning.
N. Ippolito +4 more
semanticscholar +1 more source
Effect of acid leaching pre-treatment on gold extraction from printed circuit boards of spent mobile phones [PDF]
, 2021 The effect of a preliminary acid leaching for the recovery of gold by thiourea from printed circuit boards (PCBs) of spent mobile phones, was investigated.
Pietrelli L. +3 more
core +2 more sources
Hydrometallurgical Methods for Extracting Non-ferrous Metals from Electronic Gadgets
Chemical Engineering Transactions, 2021 This article explores an environmentally friendly method of complex processing of printed circuit boards of cell phones in order to extract gold and other valuable components without cyanides. Thiourea was used as reagents for leaching gold and silver. A
Zhanserik Shoshay +3 more
doaj +1 more source
Thiourea leaching of gold from processed municipal solid waste incineration residues
Journal of Material Cycles and Waste Management, 2022 Incineration is one of the key technologies in disposal of municipal waste, which produces municipal solid waste incineration (MSWI) residues with high valuable metal contents.
Sergey M. Abramov +6 more
semanticscholar +1 more source
Leaching of gold from flotation waste by thiourea
Acta Montanistica Slovaca, 2021 Throughout human history, gold has been the most sought-after and well-known precious metal in the world. It is synonymous with wealth in the financial market and jewellery. However, its use has a wide range of applicability in biomedicine, electronic engineering and other industries.
openaire +1 more source
LEACHING OF GOLD FROM FINE-GRAINED FLOTATION TAILINGS
GeoScience Engineering, 2020 This study focuses on leaching of gold from fine-grained waste materials from flotation. The input raw material is the waste product after flotation containing about 1–2.5 g/t of Au.
Sarah JANŠTOVÁ +2 more
doaj +1 more source
An innovative thiourea gold leaching process
Hydrometallurgy, 1998 The aim of this experimental work was devoted to the preliminary evaluation of the feasibility of thiourea leaching for the extraction of gold from a domestic gold-bearing ore 4 grt Au, at laboratory scale. The study has permitted identification of the influence of temperature, leaching agent concentration, pulp density and leaching time on the gold ...
SUbaldini +3 more
openaire +2 more sources
Effects of ammonium thiosulfate and guanyl thiourea as calcium ammonium nitrate inhibitors on fertilization and plants [PDF]
Chemical Review and Letters, 2019 The effects and decomposition of ammonium thiosulfate and guanyl thiourea, a nitrification inhibitor, are discussed. When ammonium thiosulfate and guanyl thiourea are used as nitrification inhibitors, leaching of ammonium nitrate from calcium ammonium ...
Ahmet Gezerman
doaj +1 more source
Prospects for thiourea as a leaching agent in Colombian gold small-scale mining: a comprehensive review [PDF]
, 2022 Thiourea, as an alternative medium, is one of the most promising leaching agents for gold recovery by its commercial benefits and research challenges associated with performance and environmental impacts.
Torres, Robinson +3 more
core +1 more source