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The influence of sodium fluoride on the dissolution kinetics of metallic titanium in citric acid solution using the rotating disc method Hydrometallurgy (IF 4.7) Pub Date : 2024-03-20 Mahmoud Motasim, Salih Aydoğan, Tevfik Agacayak, Yasin Ramazan Eker, Amin El-gak, Ahmed A.S. Seifelnassr
This study reports the effect of sodium fluoride on the dissolution kinetics of pure metallic titanium in a citric acid solution. The effects of sodium fluoride concentration, citric acid concentration, temperature, stirring speed, and disc surface area were examined. The dissolution rate of titanium increases strongly with increasing citric acid and sodium fluoride concentrations. Fluoride ions react
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The impact of apatite on sulfuric acid baking of a monazite concentrate and the benefit of goethite addition on rare earth leaching Hydrometallurgy (IF 4.7) Pub Date : 2024-03-16 John Demol, Elizabeth Ho, Karin Soldenhoff, Gamini Senanayake
Sulfuric acid baking of monazite ((Ce,La,Th)PO) bearing ores is one of the major processes used in commercial production of rare earth elements. In hydrothermal vein type rare earth deposits, apatite is often found together with monazite. Rare earth enriched fluorapatite ores may also contain significant amounts of rare earths hosted in monazite. An understanding of the effect of apatite on the sulfuric
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Effect of pretreatment methods on the selective leaching of rare earth elements from NdFeB permanent magnets using deep eutectic solvents Hydrometallurgy (IF 4.7) Pub Date : 2024-03-15 Seojin Heo, Rina Kim, Ho-Sung Yoon, Chul-Joo Kim, Kyeong Woo Chung, Sujeong Lee
In this study, deep eutectic solvents (DESs) were employed as environmentally friendly alternatives of inorganic acid to selectively leach REEs from waste NdFeB magnets. Three DESs were tested, effective for light REE leaching, and preliminary experiments were conducted to study the selective leaching of REEs, using synthetic materials, NdO, Fe, FeO, and FeO. The findings suggest that neodymium and
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Extraction of gallium from carbon concentrate - Aluminum industry waste Hydrometallurgy (IF 4.7) Pub Date : 2024-03-06 Vladimir Losev, Olga Buyko, Alexander Shimanskii, Yakov Kazantsev, Sergey Metelitsa, Elena Borodina, Mingming Li
A complex approach to the extraction of gallium from a carbon concentrate (CC), a waste product of the aluminum industry, was considered. Ashing of CC made it possible to remove the main component - carbon and obtain ash, which is an oxide mineral-like compound, from which gallium was leached with solutions of inorganic acids and their mixtures. The maximum degree of leaching (98%) of gallium was achieved
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Effect of zinc(II) and caustic content on the decomposition of sodium aluminate solutions and relevance to the Bayer process Hydrometallurgy (IF 4.7) Pub Date : 2024-03-06 Lei Xu, Wen-mi Chen, Yan-jun Zhang, Shang Fan, Jian-qing Pi, Ming-li Wang
The impact of zinc (Zn) on the seed decomposition process of sodium aluminate solution at different caustic concentrations was investigated. The results showed that as the concentration of Zn(II) in sodium aluminate solution increased from 0 to 1000 mg/L, the decomposition efficiency of the solution and average grain size of the resulting aluminum tri-hydroxide (ATH) changed little at a caustic concentration
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Separation of trace amount of nickel from cobalt sulphate solutions using a synergistic solvent extraction system consisting of dinonylnaphthalene sulfonic acid (DNNSA) and decyl 4-picolinate (4PC) Hydrometallurgy (IF 4.7) Pub Date : 2024-03-03 Shiyu Xiao, Li Zeng, Xinsheng Wu, Wenjuan Guan, Yixiong Chen, Shengxi Wu, Qinggang Li, Zuoying Cao, Mingyu Wang, Guiqing Zhang
The current methods for separation of nickel from cobalt sulphate solutions have drawbacks of long flowsheets, release of large volumes of wastewater and incomplete separation of two metals. A synergistic solvent extraction (SSX) system consisting of dinonylnaphthalene sulfonic acid (DNNSA) and decyl 4-picolinate (4PC) is proposed in this work to extract nickel from cobalt sulphate solutions selectively
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Effect of alkali metal nitrates on palladium dissolution in nitric acid solutions Hydrometallurgy (IF 4.7) Pub Date : 2024-02-26 Ming Tian, Zhanpeng Yan, Minghui Liu, Tianyan Xue, Ying Yu, Hui Zhang, Tao Qi
Hydrometallurgical unit operations are typically used to recover palladium (Pd) from its ores and secondary resources with high selectivity owing to their low energy consumption, cost effectiveness, and volume flexibility. Herein, diluted HNO solutions with added nitrate salts were used to dissolve Pd powders. Moreover, solutions of nitrates with same valency cations (such as HNO, LiNO, NaNO, KNO,
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Bioleaching for metals removal from mine tailings flotation fractions Hydrometallurgy (IF 4.7) Pub Date : 2024-02-20 Tamara A. Schueler, Axel Schippers, Daniel Goldmann
This study investigated two bioleaching strategies for removing heavy metals from three mine tailings fractions generated by flotation processes. On the one hand, bioleaching with microbial consortia of acidophilic mesophiles and moderate thermophiles efficiently extracted Co, Cu, Zn, and As, while the leaching of Pb was facilitated through the use of organic acids produced by a heterotrophic bacterium
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Leaching of catalyst platinum from cured silicone elastomers: A preliminary study for comparing reagents Hydrometallurgy (IF 4.7) Pub Date : 2024-02-15 Tobias Feix, Aseel Ali Fadhil, Dennis Troegel
Addition curing systems involve two-part silicones which require the mixture of a silicone polymer with a catalyst to initiate the cure. Platinum is the most commonly used metal catalyst for addition curing of silicones by hydrosilylation which involves the crosslinking by the addition reaction of silicon hydride species to unsaturated bonds, mainly CC, but also CO or CN double bonds. After crosslinking
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Rotating disc method to study the dissolution kinetics of copper metal in citric acid and hydrogen peroxide Hydrometallurgy (IF 4.7) Pub Date : 2024-02-07 Mahmoud Motasim, Salih Aydoğan, Babiker Ali, Tevfik Agacayak
This study reports the kinetics of copper metal dissolution in citric acid-hydrogen peroxide solution using the rotating disc method. The effect of the concentration of citric acid as well as hydrogen peroxide, stirring speed, disc surface area, and temperature was investigated. The concentration of hydrogen peroxide (0.25–1.5 mol/L) has a strong effect on the dissolution rate (mg/min) of copper with
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Investigation of the use of foams for silver leaching using the thiosulfate‑copper(II)-ammonia system in the context of e-waste recycling Hydrometallurgy (IF 4.7) Pub Date : 2024-02-06 Cyriaque Bruez, Anne Rousseau, Grégory Lefèvre, Cécile Monteux
Due to its physical properties, metallic silver is present in numerous electronic wastes. Its recycling requires selective extraction, which involves leaching of silver as the first step. This work focusses on leaching silver with Cu(II)/NH/SO which has been widely used for gold leaching. As recently shown for the leaching of copper, using foams whose aqueous phase consists of leaching chemicals is
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Boron extraction by aliphatic mono- and di-hydroxy alcohols from a representative continental brine Hydrometallurgy (IF 4.7) Pub Date : 2024-02-06 Abdoul Fattah Kiemde, Jérôme Marin, Victoria Flexer, Alexandre Chagnes
The extraction properties of mono-hydroxy alcohols (2-butyl-1-octanol, 2-ethyl-1-hexanol, 1-octanol) and di-hydroxy alcohols (2-ethyl-1,3-hexanediol, 2-butyl-2-ethyl-1,3-propanediol, 2-methyl-2,4-pentanediol) towards boron, potassium, lithium, sodium, calcium and magnesium ions were investigated as a function of pH and phase volume ratio (O/A) by considering an aqueous phase with a composition mimicking
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Extraction of lithium and phosphorus from amblygonite using calcium sulfate roasting and water leaching Hydrometallurgy (IF 4.7) Pub Date : 2024-02-03 Qingfeng Zhou, Xiangdong Ma, Xunhui Xiong
This work proposes the roasting of amblygonite with calcium sulfate followed by water leaching to extract lithium and phosphorus. Various roasting parameters including roasting temperature, the mass ratio CaSO/ore, roasting time as well as leaching parameters, such as the liquid/solid ratio, temperature and time, have been carefully investigated. The lithium extraction efficiency can be as high as
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Extraction of magnesium from mine tailings for carbon dioxide mineralization: A preliminary study of the effect of ammonium sulfate to tailings ratio on products and yield Hydrometallurgy (IF 4.7) Pub Date : 2024-02-02 Marjut Mälkki, Sampo Mäkikouri
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Alkaline in-situ leaching of uranium in low-permeability sandstone: An experimental study using online low field nuclear magnetic resonance (LF-NMR) spectroscopy on multiphase response Hydrometallurgy (IF 4.7) Pub Date : 2024-01-26 Tong Zhang, Haitao Zhang, Xin Yang, Junlin Mao, Xuebin Su, Yang Liu, Guoliang Zhou, Zhizheng Xie
Uranium leaching was influenced by multiphase flow and geological structure during in-situ recovery of uranium (ISRU). In this study, the characteristics of multiphase flow and pore structure responding to the alkaline ISRU was investigated, using a real-time triaxial coupling nuclear magnetic resonance experiment system. The component of leaching solute, flow regime and pore structure evolution was
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Sulfur dioxide as a thiourea stabilizer in the Carbon-in-Leach (CIL) process using a hydrodynamic cavitation-reactor for gold recovery from dump tailings Hydrometallurgy (IF 4.7) Pub Date : 2024-01-19 I.R. Boboev, F.S. Tabarov, S. Vorotilo
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Hydrometallurgical processing of mining-impacted soils: A preliminary study to recover copper salts by leaching with seawater and crystallization Hydrometallurgy (IF 4.7) Pub Date : 2024-01-17 Sonia Cortés, Pablo Maluenda-León, Liey-si Wong-Pinto, Javier I. Ordóñez
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Kinetics and mechanism of selective leaching of bismuth from molybdenite and bismuthinite mixed ore Hydrometallurgy (IF 4.7) Pub Date : 2024-01-16 Yingpeng Xu, Xuheng Liu, Zhongwei Zhao, Xingyu Chen, Jiangtao Li, Lihua He, Fenglong Sun
In the conventional beneficiation process for handling mixed ore containing molybdenite and bismuthinite, the co-extraction issues involving molybdenum and bismuth, exemplified by mutual content of molybdenite and bismuthinite, may lead to the shutdown of the production line. Under acidic conditions, Bi3+ and Cl− can form stable coordination complex anions, whereas Mo4+, Mo6+, and Cl− do not exhibit
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Lithium recovery from geothermal brines: An investigation into radioactive nuclide uptake on lithium‑manganese-oxide (LMO) granules Hydrometallurgy (IF 4.7) Pub Date : 2024-01-14 Lena Kölbel, Klemens Slunitschek, Elif Kaymakci, Thomas Kölbel, Rebekka Reich, Jochen Schneider
Due to the growing demand for lithium, the exploitation of non-conventional lithium sources such as Li-bearing geothermal brines is currently on the rise. These brines contain up to 200 mg L−1 of lithium along with a diverse range of other dissolved elements, including naturally occurring radionuclides. In this study, data from a radiochemical monitoring process performed during the pilot plant testing
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Highly efficient diluent-free solvent extraction of uranium using mixtures of protonated trioctylamine and quaternary ammonium salts. Comparative Life Cycle Assessment with the conventional extractant Hydrometallurgy (IF 4.7) Pub Date : 2024-01-10 Elise Guerinoni, Sandrine Dourdain, Zijun Lu, Fabrice Giusti, Guilhem Arrachart, Julien Couturier, Didier Hartmann, Stéphane Pellet-Rostaing
A more environmentally friendly solvent extraction process was formulated for uranium extraction using diluent-free extractants based on trialkylammonium compounds. The effect of ammonium cations and anions toward extraction efficiency, viscosity and phase separation was also evaluated. These systems were shown to be highly efficient and simple to implement as they rely on the same chemical components
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Silver adsorption from gold leaching cyanide wastewater by a green functionalized magnetic graphene oxide Nano-adsorbent Hydrometallurgy (IF 4.7) Pub Date : 2024-01-14 Maryam Zounia, Mohamad Reza Samadzadeh Yazdi, Mohsen Hakimi, Hakimeh Zare, Ahad Amiri
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Redox assisted solvent extraction to enable highly efficient separation of cerium from other lanthanides: Experimental studies and DFT calculations Hydrometallurgy (IF 4.7) Pub Date : 2024-01-10 Huaixin Hao, Yaoyang Liu, Jianhua Yuan, Xue Dong, Zhipeng Wang, Chao Xu, Jing Chen
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Facile and novel method for the recovery of gold from a calcined concentrate via copper–ammonia -thiourea system and activated carbon Hydrometallurgy (IF 4.7) Pub Date : 2024-01-08 Yue Lin, Yunlong Chen, Shuliang Chen, Xianzhi Hu, Futing Zi, Peng Yang
Cyanidation, as the primary method for gold extraction, poses significant risks to the environment and animals. Therefore, an eco-friendly, sustainable, and effective leaching approach has been devised for extracting gold from a gold concentrate after calcination, utilizing copper(II)-ammonia and thiourea. This research focuses primarily on optimizing leaching conditions, gold recovery from leach solution
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Bioleaching of secondary and critical raw materials from Red Mud by a mixed culture in a semi-continuous reactor Hydrometallurgy (IF 4.7) Pub Date : 2024-01-06 Cozzolino Anna, Cappai Giovanna, Cara Stefano, Muñoz Jesús Angel, Milia Stefano, Tamburini Elena, Serpe Angela, Carucci Alessandra
Red Mud (RM) is a byproduct of the Bayer Process, used to extract alumina from bauxite. This residue contains valuable metals and rare earth elements (REEs), which can be bioleached under acidic conditions and later recovered, eventually reducing the RM pollution potential. The focus of this study was to extract metals through bioleaching using biostimulated biomass. A sequencing batch reactor (SBR)
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Bioleaching of a lateritic ore (Piauí, Brazil) in percolators Hydrometallurgy (IF 4.7) Pub Date : 2024-01-05 Srdjan Stanković, Simon Goldmann, Dennis Kraemer, Kristian Ufer, Axel Schippers
Heap leaching of laterites for extraction of nickel and cobalt is an attractive alternative to capital and energy intensive high pressure acid leaching, the dominant hydrometallurgical processing technology for limonitic laterites. Conventional approach for heap leaching of laterites is leaching with sulfuric acid. Consumption of sulfuric acid during heap leaching is substantial and industrial-scale
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Extraction of zinc from spent pickle liquor using primary amine extraction system Hydrometallurgy (IF 4.7) Pub Date : 2023-12-30 Shuxuan Hu, Heng Zhang, Xuezhi Tan, Shufang Ni, Shiwei Li
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A study on speciation and enrichment of rare earth elements (REE) by sequential extraction from a potential coal fly ash resource and its role in REE extractability Hydrometallurgy (IF 4.7) Pub Date : 2023-12-17 Akshay Kumar Singh Choudhary, Santosh Kumar, Sudip Maity
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Recovery of uranium from conversion production sludge by leaching with nitric acid and subsequent ion-exchange concentration Hydrometallurgy (IF 4.7) Pub Date : 2023-12-21 Sergey Yu Skripchenko, Ksenia A. Nalivaiko, Svetlana M. Titova, Vladimir N. Rychkov, Vladimir S. Semenishchev
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Selective removal of Fe impurities in the recovery of rare earth elements from carbonatite tailings using chemical routes Hydrometallurgy (IF 4.7) Pub Date : 2023-12-16 Shuronjit Kumar Sarker, Mark Pownceby, Sachin Yadav, Warren Bruckard, Nawshad Haque, Nahar Singh, Biplob Kumar Pramanik
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Solubility of neodymium and dysprosium sulfates at different pH and temperature and the effect of yttrium sulfate, sodium sulfate, and ammonium sulfate mixtures: Strengthening the predictive capacities of the OLI software Hydrometallurgy (IF 4.7) Pub Date : 2023-12-15 Spencer Cunningham, Maxwell Etherington-Rivas, Gisele Azimi
This study focuses on investigating the solubilities of two rare earth element (REE) sulfate salts, Nd2(SO4)3 (representing light REEs) and Dy2(SO4)3 (representing heavy REEs), under various conditions. Four different systems are studied: 1) binary REE2(SO4)3–H2O system at natural pH and temperatures of 25, 46, 65, and 80 °C, 2) ternary REE2(SO4)3–NaOH–H2O system, covering a pH range from 7 down to
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Numerical simulation of Lithium extraction from salt Lake brines through force environment modulation in microfluidic channels with ion concentration polarization Hydrometallurgy (IF 4.7) Pub Date : 2023-12-13 Yaru Hu, Yixing Gou, Dongxiang Zhang, Jiafei Jiang, Bader Al-Anzi, Zirui Li
Force-environment-modulated microfluidic devices possess significant potential for the efficient lithium extraction from salt-lake brines. This paper proposes a novel force-environment-modulated system for the simultaneous Li+ concentration and Mg2+ removal from high Mg2+/Li+ ratio (MLR) brines. In this system, multiple parallel barriers are positioned within a microchannel to regulate the flow of
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Corrigendum to “Comparison of sphalerite, djurleite, and chalcopyrite leaching by chemically and biologically generated ferric sulfate solutions” [Hydrometallurgy 219 (2023) 106067] Hydrometallurgy (IF 4.7) Pub Date : 2023-12-11 Maxim Muravyov, Anna Panyushkina
Abstract not available
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Separation of rare earth elements using chelating agent-assisted electrodialysis: Phenomenological modeling and comparison with experimental data Hydrometallurgy (IF 4.7) Pub Date : 2023-12-07 Gisele Azimi, Lingyang Ding, Sanaz Mosadeghsedghi, Laleh Dashtban Kenari, Mohammadali Baghbanzadeh, Konstantin Volchek
The study presented here focuses on the development of a phenomenological model based on the Nernst-Planck equation for the separation of neodymium (Nd) and praseodymium (Pr) from a mixture containing cerium (Ce) and lanthanum (La) using chelated-assisted electrodialysis with hydroxyethylethylenediaminetriacetic acid (HEDTA) tri disodium salt as the chelating agent. This model considers solution selectivity
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Highly efficient solid phase extraction of uranium with TOPO-menthol based eutectic solvent as stationary phase from acidic feed relevant to front-end applications Hydrometallurgy (IF 4.7) Pub Date : 2023-12-02 Ankita Rao, Ashutosh Srivastava, Arijit Sengupta, R.K. Lenka
Novel methods of separation and purification are envisaged for natural uranium, containing 0.7% of fissile 235U, a precious resource that fuels nuclear power plants. The present study demonstrates Solid phase extraction (SPE) of uranium as a sustainable alternative to conventional liquid-liquid extraction, leading to minimisation of organic inventory and enhancement of ease of operation concerning
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Rare earth dissolution from polishing powder waste in H2O2-H2SO4 system: Condition optimization and leaching mechanism Hydrometallurgy (IF 4.7) Pub Date : 2023-12-05 Lin Chen, Xiaofeng He, Xiaona Dang, Xingcang Wang, Weifeng Liu, Duchao Zhang, Tianzu Yang
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Properties governing the flow of solution through crushed ore for heap leaching: Part III – Low-permeability ores Hydrometallurgy (IF 4.7) Pub Date : 2023-12-02 S.W. Robertson, P. Basson, S. Brill, P.J. van Staden, J. Petersen
Heap leaching is used extensively for the processing of low-grade copper and gold ores. If the ore has low permeability, it may lead to underperformance or even project failure. Poor permeability is caused by a high fines content, resulting in a high steady-state moisture hold-up which causes the bed to operate close to saturation. The problem of low permeability can be addressed by either desliming
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Thiourea-assisted selective removal of arsenic from copper smelting flue dusts in NaOH solution Hydrometallurgy (IF 4.7) Pub Date : 2023-11-30 Qingzhu Li, Xinting Lai, Zhenxing Liu, Fei Chai, Feiping Zhao, Cong Peng, Yanjie Liang
The selective removal of arsenic from copper smelting flue dusts is of great significance for environmental protection and resource recycling. This study employed thiourea assisted alkaline leaching to selectively extract arsenic from copper smelting flue dusts. The effects of NaOH concentration, thiourea concentration, temperature, leaching time and pulp density on the dissolution of arsenic, zinc
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Potential of single and designed mixed cultures to enhance the bioleaching of chalcopyrite by oxidation-reduction potential control Hydrometallurgy (IF 4.7) Pub Date : 2023-11-24 Daniela Ríos, Sören Bellenberg, Stephan Christel, Pontus Lindblom, Tori Giroux, Mark Dopson
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Strategy for possible separation of light rare earth elements (La, Ce, Pr, Nd) from synthetic chloride solutions by oxidative precipitation, solvent extraction and stripping Hydrometallurgy (IF 4.7) Pub Date : 2023-11-19 Arsyad Maulana Dzulqornain, Ana Belen Cueva-Sola, Kyeong Woo Chung, Jin-Young Lee, Rajesh Kumar Jyothi
Due to their comparable physicochemical characteristics, light rare earth elements (LREEs), such as lanthanum (La), cerium (Ce), praseodymium (Pr), and neodymium (Nd), the separation of these elements is a challenging process. In this study, a strategy involving hydrometallurgical unit operations is presented, including oxidation, precipitation, solvent extraction (SX), and stripping. Separation of
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Efficient extraction of valuable metals from spent LiNi0.5Co0.2Mn0.3O2 cathode based on an acid-free leaching process Hydrometallurgy (IF 4.7) Pub Date : 2023-11-23 Xi Jin, Xiaogang Zhang, Pengyang Zhang, Sohrab Rohani, Haoyan Li, Minyu He, Liumei Teng, Qingcai Liu, Weizao Liu
The traditional liquid acid leaching method for recycling spent lithium-ion batteries (LIBs) has serious environmental pollution and unsafe transportation. In this study, solid sodium bisulfate was applied as a leaching agent to recover lithium, cobalt, nickel and manganese from the cathode active material of spent LIBs in the presence of a reductant, hydrogen peroxide. It was found that the leaching
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Efficient recovery of iron from anaerobic roasted cyanide tailings using advanced oxidation technology Hydrometallurgy (IF 4.7) Pub Date : 2023-11-17 Ping Dong, Yonghui Song, Lei Wu, Jin Bao, Ning Yin, Rongyan Zhu, Yifan Li, Hefu Li
Persulfate-mediated advanced oxidation process (AOP) has been used to oxidize iron and sulfur bearing minerals, but the iron leaching process and the activation of persulfate by minerals themselves has been neglected. In this study, AOP was used to leach iron from cyanide tailings, roasted in a nitrogen atmosphere. The oxidation behavior of pyrrhotite and the activation mechanism of persulfate were
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Bioreduction of aqueous palladium ions by Shewanella algae under atmospheric conditions Hydrometallurgy (IF 4.7) Pub Date : 2023-11-22 Tohko Asada, Yuya Edamitsu, Kai Wakashiba, Toshiyuki Nomura
Biohydrometallurgy utilizing microorganisms capable of reducing precious metal ions to zero-valent precious metals is attracting attention as an environmentally benign process, but challenges in terms of recovery costs have hindered its practical application. In this study, we focused on addressing one of the challenges in biohydrometallurgy through the exploration of anaerobic conditions for bioreduction
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Highly selective separation of germanium from sulfuric solution using an anion exchange D201 × 7 resin with tartaric acid Hydrometallurgy (IF 4.7) Pub Date : 2023-11-16 Chunlin He, Mingwei Qi, Yun Liu, Zunzhang Liu, Yuezhou Wei, Toyohisa Fujita, Guifang Wang, Shaojian Ma, Wenchao Yang, Junyuan Gan
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Effective separation of V(IV) and Fe(III) from sulfuric acid solution by solvent extraction with P507 and N235 Hydrometallurgy (IF 4.7) Pub Date : 2023-11-10 Xiaobo Zhu, Yue Liu, Chen Ma, Wang Li
A selective and highly effective method is proposed for the extraction and separation of V(IV) and Fe(III) using the trioctyl tertiary amine (N235) and 2-ethylhexyl hydrogen-2-ethylhexylphosphonate (P507). Various solvent extractants for extracting and separating V(IV) and Fe(III) have been studied; P507 and N235 appear to be the most active solvent extractants offering high extraction efficiency and
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Effects of key impurities (Al, Fe, P, Si and Na) on the precipitation process of vanadium in the novel ultrasound-assisted precipitation system Hydrometallurgy (IF 4.7) Pub Date : 2023-11-10 Bo Chen, Shenxu Bao, Yimin Zhang
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An experimental study on the adsorption behavior of gold glycinate complex on graphene oxide Hydrometallurgy (IF 4.7) Pub Date : 2023-11-10 Monireh Heshami, Bijan Taheri
Graphene oxide (GO) has recently gained plenty of attention as an effective adsorbent for gold recovery from leaching solutions, primarily due to its larger surface area compared to activated carbon (AC). In this study, the adsorption behavior of gold glycinate complex (Augly2−) on GO surface was investigated using equilibrium isotherm and kinetic studies for the first time. The optimal conditions
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Reductive roasting of red mud with carbon and sulfuric acid dissolution of iron and aluminum: Transformation phases and leaching characteristics Hydrometallurgy (IF 4.7) Pub Date : 2023-11-10 Yuhua Huang, Wei Mo, Jinpeng Feng, Rulong Ren, Wei Guo, Xiujuan Su, Jinlin Yang, Chunyan He
A novel approach is proposed, combining pyrometallurgical and hydrometallurgical processes, to enhance the recovery of Fe and Al while effectively breaking down the mineral composition of red mud. The study delves into the roasting reduction behavior and conversion mechanism of red mud, utilizing thermodynamic analysis and conducting roasting experiments. Extensive investigations were conducted to
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Process monitoring of cobalt carbonate precipitation by reactions between cobalt sulfate and sodium carbonate solutions to control product morphology and purity Hydrometallurgy (IF 4.7) Pub Date : 2023-11-09 Jianxin Zhang, Rajaboopathi Mani, Marjatta Louhi-Kultanen
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Molecular dynamic (MD) simulation and density function theory (DFT) calculation relevant to green leaching of metals from spent lithium-ion battery cathode materials using glucose-based deep eutectic solvent (DES) Hydrometallurgy (IF 4.7) Pub Date : 2023-10-29 B. Behnajady, J. Yousefi Seyf, S. Karimi, M. Moradi, M. Sohrabi
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Nitrate-induced cancrinite precipitation in alkaline solution at low temperature and relevance to the Bayer alumina process Hydrometallurgy (IF 4.7) Pub Date : 2023-10-25 Sicheng Wang, James Vaughan, Hong Peng
Cancrinite-type zeolites were proposed as functional materials which exhibits promising photocatalytic properties, enables carbon capture and can even be used in the storage of liquid radioactive waste. Conventional cancrinite is precipitated by reacting Na2CO3 or CaCO3 with Al- and Si- rich alkaline solutions at an elevated temperature of 150 °C in Bayer Alumina process. Here we report the effect
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A novel method to leach vanadium, molybdenum and nickel from spent hydrodesulfurization catalysts using hydroxyl radicals (HO•) in Fe2O3-assisted oxygen microbubble process Hydrometallurgy (IF 4.7) Pub Date : 2023-10-19 Bingxu Chen, Hao Du, Jianzhang Wang, Biao Liu, Jan J. Weigand, Huiquan Li, Shaona Wang, Jianping Peng, Yi Zhang
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Selective solvent extraction of Cu(II) from aqueous solutions using an acyl-based thiourea: Extraction study and DFT analysis of reaction mechanism Hydrometallurgy (IF 4.7) Pub Date : 2023-10-21 Xiaoping Huang, Kai Jin, Ruyi Zhang, Yutao Gong, Jianxian Zeng, Rui Zhang, Yuan Liu, Jianrong Xue
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High-efficiency process of aluminum removal from rare earth solutions using a readily industrialized ionic liquid Hydrometallurgy (IF 4.7) Pub Date : 2023-10-19 Nian Zhang, Fujian Li, Haiyang Xue, Zhongzhi Wang, Sen Qiu, Bangyu Fan, Yanyan Cheng, Xiangping Zhang
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On the path of recovering platinum-group metals and rhenium: A review on the recent advances in secondary-source and waste materials processing Hydrometallurgy (IF 4.7) Pub Date : 2023-10-16 Sebastian Kinas, Dorota Jermakowicz-Bartkowiak, Paweł Pohl, Anna Dzimitrowicz, Piotr Cyganowski
Several economical and industrial applications related to environmental protection and energy conversion/storage have posed a high demand for platinum-group metals (PGMs) and Re. These materials are typically used in chemical, petroleum, refinery, and automotive catalysis applications, consequently leading to resource scarcity, despite the intensive efforts undertaken for environment protection. Hence
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Corrigendum to “A review on extractive metallurgy of tantalum and niobium” [Hydrometallurgy 198 (2020) 105496] Hydrometallurgy (IF 4.7) Pub Date : 2023-10-12 A. Shikika, M. Sethurajan, F. Muvundja, M. Mugumaoderha, St. Gaydardzhiev
Abstract not available
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Selective separation of aluminum, silicon, and titanium from red mud using oxalic acid leaching, iron precipitation and pH adjustments with calcium carbonate Hydrometallurgy (IF 4.7) Pub Date : 2023-10-10 Wanyan Li, Ning Wang, Fanghai Lu, Hongyun Chai, Hannian Gu
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A clean ammonia-free vanadium recovery process for titanium-white waste using D2EHPA extraction, hydrogen peroxide stripping, precipitation and calcination to produce V2O5 Hydrometallurgy (IF 4.7) Pub Date : 2023-10-07 Guopeng Yang, Qinggang Li, Guiqing Zhang, Mingyu Wang, Zuoying Cao, Wenjuan Guan, Jiawei Du, Shengxi Wu
Traditional vanadium extraction process, which involves H2SO4 stripping after solvent extraction followed by ammonium vanadate precipitation, faced the issues of large amount of reagent consumption and discharge of ammonia contaminated wastewater. Hydrogen peroxide stripping and precipitation of vanadium products by heating process was considered as a novel alternative for H2SO4 stripping - ammonium
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Computational investigation on the molecular driving forces for extraction of Co2+, Ni2+, and Fe3+ in poly(ethylene oxide)/thiocyanate salt aqueous two-phase systems Hydrometallurgy (IF 4.7) Pub Date : 2023-10-06 Lucas Andrade Silva, Letícia Maia Prates, Alexandre Moni Pereira, Julio Cesar Guedes Correia, Heyder Pereira Neves, Aparecida Barbosa Mageste, Gabriel Max Dias Ferreira
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Production processes for LiOH – A review Hydrometallurgy (IF 4.7) Pub Date : 2023-10-05 J. Matthias Dahlkamp, Celso Quintero, Alvaro Videla, René Rojas