Results 61 to 70 of about 832,680 (294)
Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications
Advanced Materials Technologies, EarlyView.This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo +2 more
wiley +1 more source
Leaching of Ovacik gold ore with cyanide, thiourea and thiosulphate
, 2005 In this study, leaching kinetics of Ovacik gold ore, which is the first project of what is potentially a large new mining industry in Turkey, has been investigated and major parameters have been determined using cyanide, thiourea and thiosulphate.
TANRIVERDİ, MEHMET +2 more
core +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
Sustainable Environment Research, 2022 Recycling of waste printed circuit boards (PCBs) has attracted increasing attention because of its high annually produced amount and high content of gold.
Yu-Fong Huang +2 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo +4 more
wiley +1 more source
Leaching of gold and silver from Miller Process dross through non-cyanide leachants
, 1996 Leaching of gold and silver from the Miller Process dross was investigated using non-cyanide leachants. The dross was found to be very refractory to direct leaching with thiourea as well as thiosulphate.
Murthy, D S R +3 more
core +1 more source
Advanced Materials Technologies, EarlyView.Bridging rigid electrodes with soft, irregular tissues demands more than conductivity alone. Modular conductive hydrogels autonomously reconfigure into conformal electrode‐tissue interfaces, coupling mixed ionic‐electronic conduction with tissue‐like mechanics, self‐healing, and degradability.
Matthew K. Burgess +4 more
wiley +1 more source
Gold extraction from oxide ore using iron ion-thiourea-additive
Green Processing and SynthesisTo address the challenges of high reagent consumption and environmental risks in traditional cyanide gold extraction, this study investigated the leaching of gold from an oxide ore sourced from a gold mine in Laos using an iron ion-thiourea-thiocyanate ...
Deng Chao +4 more
doaj +1 more source
Thermodynamics of Methylamine and Ammonia Synergy in Copper-Catalyzed Thiosulfate Gold Leaching
MetalsThiosulfate leaching is considered a promising alternative to cyanidation for gold extraction because it can be achieved at a low cost. However, existing leaching systems struggle to balance leaching efficiency with thiosulfate consumption.
Heng He +8 more
doaj +1 more source
Effect of arsenopyrite on thiosulfate leaching of gold
Transactions of Nonferrous Metals Society of China, 2015 Abstract Arsenopyrite was artificially added into the thiosulfate leaching solution to clarify the role of arsenopyrite on the thiosulfate leaching of gold. The effect of arsenopyrite on the thiosulfate leaching of gold was studied by the thermodynamic calculation, mineral dissolution test, leaching test and XPS analysis.
Yong-bin YANG +5 more
openaire +1 more source