نتایج جستجو برای: chloride leaching

تعداد نتایج: 97233  

Journal: :Zapiski Gornogo instituta 2022

In-situ leaching of molybdenum and uranium is becoming an increasingly common process. The features the material composition ores, leading to a decrease in their filtration properties, were considered. Activation with solutions that have undergone electrophotochemical activation before contact ore mass studied. preparation promotes synthesis clustered water molecules collectivized protons hydro...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

Journal: :Materials proceedings 2022

The feasibility of using low-environmental-impact leaching media to recover valuable metals from lithium ion batteries (LIBs) has been evaluated. Several deep eutectic solvents (DES) were tested as agents in the presence different type additives (i.e., H2O2). optimization Co recovery was carried out by investigating various operating conditions, such reaction time, temperature, solid (black mas...

Journal: :Journal of Sustainable Materials Processing and Management 2022

The hydrometallurgical method for processing chalcopyrite ore has gained enormous attention due to the environmental problems emanated by conventional pyrometallurgical route. Here, hydrometallurgy is considered an alternative that may be more of low-cost and environmentally friendly. Thus, alkaline leaching been effective, efficient, acceptable leachant dissolution. dissolution behaviour coppe...

Journal: :Metals 2021

Bauxite residue (red mud), which is an industrial byproduct, contains valuable trace elements. Solid NH4Cl was used as a chlorinating agent during the microwave heating of red mud to convert elements into soluble metal chloride. Red heated using ovens under various conditions (i.e., with addition solid and range output powers times). Leaching tests were then conducted deionized (DI) water on mi...

2015

Bacterial leaching is the extraction of metals from their ores using microorganisms. The most important player in the bioleaching process is. 4 Bacterial Attachment on Mineral Surfaces 200. 5 Microbial Diversity in Bioleaching Environments 200. Minerals are obtained using a leaching process.greater understanding of the mechanism of bacterial leaching of sulphide minerals. This latter process wh...

Journal: :Metals 2023

In order to reveal the influence of ammonium salts on rare earth leaching process weathered crust elution-deposited ores, acetate, chloride, and sulfate were used as agents. The effects agent efficiency expansion, dissolution, transformation behavior clay minerals in studied. results showed that followed acetate > chloride sulfate, with values 90.60%, 85.96%, 84.12%, respectively. swelling r...

Journal: :Plant physiology 1987
S A Dudley M J Lechowicz

Upon rewetting, lichens lose polyols through leaching. We quantified leaching losses for 21 species under simulated rainfall. Polyol concentrations in these lichens range from 1.0 to 8.8%, with a mean of 2.8%. Leaching losses range up to about 7.5 mg (polyol)/g (lichen dry weight) in a typical rain event. The rate of polyol leaching declines exponentially, becoming negligible within 1 hour of c...

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