Results 101 to 110 of about 832,680 (294)
Microwave Pretreatment for Thiourea Leaching for Gold Concentrate
Metals, 2017 In this research, we studied the use of microwave pretreatment to enhance the efficiency of Au leaching from gold concentrate. The gold concentrate was pretreated using microwaves with different irradiation time.
Nag-Choul Choi +4 more
doaj +1 more source
Advanced Science, EarlyView.A light‐activated catheter insert combines antimicrobial blue light with nitric oxide release to generate complementary oxidative and nitrosative stress, producing potent broad‐spectrum antimicrobial activity. The approach achieves greater than 4‐log reductions in bacterial and fungal viability and significantly reduces Staphylococcus aureus ...
Alexander Bruckmann +7 more
wiley +1 more source
Thiocyanate Hydrometallurgy For the Recovery of Gold Part II: The Leaching Kinetics
, 2012 Acid thiocyanate leaching of gold was investigated in the presence of ferric sulfate as an oxidant. According to leaching kinetic studies the initial rate of gold leaching is slow, and not significantly dependent on thiocyanate (0.05-0.2 M) and ferric (0.
LeVier, K. Marc +13 more
core +1 more source
A Robust Bio‐Supportive Hydrogel Patch for Full‐Thickness Repair of Gastroesophageal Defects
Advanced Science, EarlyView.Gastroesophageal defect repair remains a formidable clinical challenge plagued by high leakage and life‐threatening complications. We develop a double‐disc, highly crystalline PVA‐based RBS hydrogel patch featuring suture‐free sealing, robust acid/enzyme resistance and mechanical durability.
Xingqi Song +13 more
wiley +1 more source
Role of selected leach aids in the leaching of bio-oxidised flotation concentrate
, 2021 Data source: Yes, Available on requestIn this study, we investigate characteristic differences of gold leaching behaviour using microscopic and spectroscopic techniques to elucidate the influential role of selected leach aids. Specifically, the effect of
Forson, P., Asamoah, R.
core
Advanced Science, EarlyView.Osmium nanoparticles anchored on CoFe layered double hydroxide (Os/CoFe LDH) stabilize high‐valent Co/Fe species and modulate the interfacial water configuration via surface engineering. This work presents a facile surface engineering strategy for constructing efficient and durable OER electrocatalysts for alkaline seawater, and expands the ...
Xindong She +8 more
wiley +1 more source
Nanoscale Buried Interface Control in Silicone Hydrogels Enables a Biointerface Engineering Platform
Advanced Science, EarlyView.A hydrophilic coating with controllable nanoscale thickness is applied to commercial silicone hydrogel contact lenses. By combining comprehensive multi‐modal three‐dimensional characterization with an advanced algorithm, the thickness and chemical information of these multilayered structures are resolved.
Po‐Hsiang Chen +5 more
wiley +1 more source
Cyanide containing reagent use for gold leaching of oxidated gold containing ores
, 2008 There is a basic opportunity of use of cyanide containing reagent, received from wastes of phosphoric industry, for gold leaching of oxidated gold containing ...
A K Tursunbaeva +3 more
core
Publisher Copyright: © 2024 The AuthorsThere is a vast amount of globally underutilized low-grade mine tailings and leach residues, including those from primary processing of gold.
Seisko, Sipi +5 more
core +1 more source
, 2020 The purpose of this study was to liberate gold from sulfide minerals in a gold concentrate through microwave-nitric acid leaching and to separate the light minerals in an insoluble residue using a hydro-separation process.
Cheon Young Park +2 more
core +1 more source