Results 91 to 100 of about 832,680 (294)
Advanced Science, EarlyView.A mechanically robust, self‐healable, moisturizing, cryotolerant and adhesive GelMA hydrogel is developed by incorporating polyvinyl alcohol, acrylic acid, sodium tetraborate, and glycerol into GelMA matrix via a photoinitiated polymerization process. The hydrogel‐derived omni‐healable ionotronic pressure sensor can sensitively and consistently monitor
Zhikang Li +16 more
wiley +1 more source
Biooxidation of gold-bearing sulphide ores: gold recovery by two leaching treatments
, 2005 This paper deals with gold extraction from a refractory sulphide ore from a Cuban deposit. The ore was pretreated by bioleaching in order to enhance gold recovery by subsequent chemical leaching.
Massiddda R +6 more
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Metallurgical Recovery of a High Sulfur Gold Mine in Shandong Province
Kuangchan zonghe liyong[Objective]To achieve efficient recovery of gold from high sulfur gold resources, [Method]process mineralogical analysis was conducted on a high sulfur gold mine in Shandong, followed by flotation and cyanide leaching experiments.
Ruizhuo GAO +5 more
doaj +1 more source
Alkaline oxidative leaching of gold-bearing arsenopyrite ores [PDF]
"The U.S. Bureau of Mines developed an alkaline oxidative pretreatment leaching procedure to increase the recovery of gold from arsenopyrite (feass) ores.
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Natrium Cyanide Replacement with Environmentally Friendly Polymerized Cyanide GOLDIX for Leaching of Gold Ore from Sumbawa Indonesia [PDF]
E3S Web of ConferencesIndonesia possesses abundant mineral resources, particularly gold ore. Leaching with sodium cyanide (NaCN) is commonly employed to extract gold in a cost-effective manner.
Reno Faturachman +2 more
doaj +1 more source
Advanced Science, EarlyView.A Molecular Solar Thermal (MOST) system combining a scalable norbornadiene–quadricyclane photoswitch, a biodegradable solvent, propylene carbonate, and noble and first‐row metal catalysts, is presented. Propylene carbonate boosts photoisomerization quantum yield by 25% compared to toluene, prolongs energy storage by an additional 15 days, and enables ...
Lucien Magson +8 more
wiley +1 more source
Mechanochemical Defluorination of Polytetrafluoroethylene (PTFE) With Base Metals
Angewandte Chemie, EarlyView.Polytetrafluoroethylene (PTFE) mechanochemically reacts with safe‐to‐handle, abundant, and inexpensive base metals Zn and Al, as well as with metals like Cd and Pb, to produce sp2‐carbon and industrially important metal fluorides. The reactivity presents PTFE as a mechanochemical fluorination agent, with opportunities for closed‐loop reductive ...
Anže Zupanc +10 more
wiley +2 more sources
Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications
Advanced Science, EarlyView.Smart bioinks empower 4D‐bioprinted constructs to dynamically adapt and remodel in response to stimuli, effectively biomimicking native tissues. Artificial Intelligence (AI) and Machine Learning (ML) play a guiding role in their rational design by optimizing relevant properties.
Shangsi Chen +11 more
wiley +1 more source
Angewandte Chemie, EarlyView.Machine learning has digitalized heterogeneous catalysis from the top of the length scale downward: prediction at the atom and the material is now mature, yet the reactor and the process remain the open frontier. This critical review traces a decade of progress across the full catalytic value chain and asks where the next decade of impact must be won ...
Rafael Larraz, Avelino Corma
wiley +2 more sources
A study of the biohydrometallurgical method for extracting gold from flotation tailings
Metalurgija, 2020 This paper shows the results of the comparative study of efficiency of gold extraction methods from technogenic flotation tails by agitation cyanidation and biooxidation followed by leaching.
A. K. Koizhanova +5 more
doaj