Results 11 to 20 of about 363,105 (311)
Leaching of High Arsenic Content Dust and a New Process for the Preparation of Copper Arsenate [PDF]
Archives of Metallurgy and Materials, 2018 In this research, the high arsenic content dust of copper smelting, as a raw material, the extraction of copper and arsenic from the high arsenic content dust in the leaching system containing acidic and alkaline compounds was investigated.
W. Sheng, Y.-Y. Shen, Z. Sheng-Quan
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Molecules, 2023 The purpose of this work is to significantly improve the vanadium grade of vanadium-bearing shale after flotation preconcentration, which is conducive to reducing the acid consumption and industrial costs in the subsequently enhanced acid leaching of ...
Yue Tang, Guohua Ye, Qi Zuo
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Leaching Properties of Estuarine Harbor Sediment Before and After Electrodialytic Remediation [PDF]
, 2007 Electrodialytic remediation (EDR) can be used to extract heavy metals from a variety of different media. In this work, contaminated harbor sediments from two locations in the United States and one in Norway were subjected to EDR, and were compared with ...
Aulisio, Deana A. +2 more
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Leaching of vanadium, potassium, and iron from spent catalyst of the manufacture of sulfuric acid
Journal of Materials Research and Technology, 2021 The sulfuric acid industry produces large volumes of spent catalyst containing vanadium. To develop an efficient method for vanadium recovery, hydrogen peroxide was used to oxidize sulfur in the spent catalyst, forming sulfuric acid, which, in turn ...
Liushun Wu +4 more
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Recovery of Barium Ions from a Barium Residue in Guizhou by Hydrochloric Acid Leaching
Kuangchan zonghe liyong, 2023 A large amount of barium slag accumulation will cause great harm to the environment. The use of hydrochloric acid leaching for barium residue can effectively recover the residual soluble barium salt in the barium residue and greatly reduce the harm of ...
Dewei Li +4 more
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Legal situation and current practice of waste incineration bottom ash utilisation in Europe [PDF]
, 2020 Almost 500 municipal solid waste incineration plants in the EU, Norway, and Switzerland generate about 17.6 Mt/a of incinerator bottom ash (IBA). IBA contains minerals and metals.
Blanc-Biscarat, Denise +28 more
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Molecules, 2023 In this study, the effect of citric acid on iron leaching from titanium gypsum (TiG) was systematically investigated. The conditions for the leaching of valuable metals were optimized while varying such parameters as the leaching time, citric acid mass ...
Yan Lin +4 more
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Estimated N leaching losses for organic and conventional farming in Denmark [PDF]
, 2006 The impact of organic compared to conventional farming practices on N leaching loss was studied for Danish mixed dairy and arable farms using an N balance approach based on representative data.
Berntsen, Jørgen +4 more
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Journal of Materials Research and Technology, 2023 Here, a new method of sulfuric acid cyclic leaching was proposed to selectively leach vanadium from the calcification roasting pellets of vanadium titanomagnetite. Cyclic leaching and conventional heap leaching were compared.
Zhixiang Wang +4 more
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Review of key causes and sources for N2O emmisions and NO3-leaching from organic arable crop rotations [PDF]
, 2018 . The emissions of nitrous oxide (N2O) and leaching of nitrate (NO3) have considerable negative impacts on climate and the environment. Although these environmental burdens are on average less per unit area in organic than in non-organic production, they
Doltra, Jordi +11 more
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