Results 211 to 220 of about 48,008 (267)

Self-driven recycling of spent Li-ion battery materials with electricity generation. [PDF]

Nat Commun
Huang S, Huang S, Li M, Zhang H, Wang X, Salla M, Wang Q.   +6 more
europepmc   +1 more source

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Chalcopyrite leaching: The rate controlling factors

Geochimica et Cosmochimica Acta, 2010
Abstract The processes that determine the rate of chalcopyrite leaching are central to understanding how chalcopyrite (CuFeS2) behaves under the environmentally adverse conditions of acid rock drainage. To this end the effect of the acid anion on chalcopyrite leach rates using a variety of acidic media (H2SO4, HClO4, HCl and H2SO4 with 0.25 M NaCl ...
J. Li, N. Kawashima, K. Kaplun, V.J. Absolon, A.R. Gerson   +4 more
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Prediction of leaching rate in heap leaching process by grey dynamic model GDM(1,1)

Applied Mathematics and Mechanics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Jin-Zhi, Wu, Ai-Xiang
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Radiation effects and the leach rates of vitrified radioactive waste

Nature, 1982
There is much concern that long-lived radioactive elements incorporated in glasses for the disposal of highly active nuclear waste might eventually return to the environment. The most important mechanism begins with leaching of the glass by groundwater and a leach rate, usually based on laboratory tests of simulated vitrified radioactive waste, has ...
W G, Burns, A E, Hughes, J A, Marples, R S, Nelson, A M, Stoneham   +4 more
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The Modeling and Control of Leaching Rate in Nickel Stir Leaching Process of Sulfuric Acid

Advanced Materials Research, 2012
Leaching rate is one of the key parameters in the nickel stir leaching process of sulfuric acid and it is hard to online measure directly due to a lot of uncertain facts. In this paper, the prediction model of nickel leaching rate is established by least squares identification method.
Qiang Li, Cheng Zhi Yang, Wen Bo Zhang, Yang Yu   +3 more
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Research of Al and Fe Leaching Rate in the Process of Slag Leaching by Hydrochloric Acid

Applied Mechanics and Materials, 2014
Smelting slag from mineral process and blast furnace process to vanadium titanium magnetite is a kind of precious secondary resource in which TiO2 content is higher than 20%. Taking titanium-bearing blast furnace slag in Panzhihua region as research object, this paper analyzes four factors that affect the leaching rate of Al and Fe.
Guang Qiang Mang, Ming Cheng
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The rate of biocide leaching from porous renders

Chemical Engineering Research and Design, 2018
Abstract The leaching of biocides contained in renders occurs through the contact of the surfaces of the renders with water. In the majority of cases such contact occurs during rainfall, and therefore it is intermittent in nature. The work presents a mathematical model of the process of the transfer of mass (biocides) in a porous material (a render).
Katarzyna Styszko, Krzysztof Kupiec
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The measurement of leach rates: A review

Nuclear and Chemical Waste Management, 1982
Abstract A historical perspective of the techniques that can be used to measure the leach rate of radioactive waste forms is presented. The achievement of leach rates that are as low as possible has been an important goal ever since the development of solidification processes for liquid radioactive wastes began in the 1950's.
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Effect of biochemical reactions in enhancement of rate of leaching

Chemical Engineering Science, 2004
Abstract Microbial dissolution of metals involves direct adhesion/attack of the bacterial cell on the sulfide surface and/or allowing chemical oxidation of liberated sulfides by ferric iron generated microbially or through oxidation by air. The prolonged recycling of Fe 2 + / Fe 3 + couple by the bacterium is essential to keep an ...
Bharathi Kodali, Bhagvanth Rao M, Lakshmi Narasu M, Ravindra Pogaku   +3 more
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Water-leaching rates of halides from polymers

Journal of Applied Polymer Science, 1982
Water-leaching experiments of halides from polymers were carried out in batch and continuous systems. The effects of flow rate, temperature, and salt content on the leaching kinetics were investigated. Different thermoplastic polymers were used as the salt carrier, and the release kinetics from them was established. NaCl, NaBr, and NaI were leached out
Nava Narkis, Moshe Narkis, Itzchak Berkovitz   +2 more
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