Article
Metallurgy & Metallurgical Engineering
Jiangxian Wen, Man Seung Lee
Summary: A hydrometallurgical process was developed to recover pure MnO2 from manganese dust containing iron and zinc oxides. High purity MnO2 powder was successfully recovered through solvent extraction and precipitation separation steps.
Article
Chemistry, Multidisciplinary
Mohamed H. Ismael, Hesham S. Mohammed, Omneya M. El Hussaini, Mohamed F. El-Shahat
Summary: This study developed a recycling process to recover titanium from uranium processing mine tailings, using solvent extraction and electrochemical deposition techniques to prepare pure TiO2 powders. The research found that solvent extraction and electrodeposition processes can effectively recover titanium, with the formation of TiO2 nanoparticles confirmed through various analytical techniques.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Junlian Wang, Lu Liu, Guodong Xu, Fan Li
Summary: Highly selective extraction of Pd from leaching liquor of spent auto-catalysts is a research hotspot. Three novel extractants (TA-804, TA-806, and TA-826) were designed, synthesized, and characterized. The effects of various factors on Pd extraction and separation were investigated.
MINERALS ENGINEERING
(2023)
Review
Materials Science, Multidisciplinary
Tao Ge, Jin-Dong He, Liang Xu, Yan-Hang Xiong, Ling Wang, Xiao-Wei Zhou, Yong-Pan Tian, Zhuo Zhao
Summary: Platinum (Pt) is a critical raw material for automotive catalytic converters due to its high-temperature stability, corrosion resistance, and catalytic activity. However, its limited primary resources and uneven distribution make it difficult to meet the growing demand. Spent automotive catalyst (SAC) is currently the most important secondary resource of platinum, with a higher platinum content than primary sources. This paper provides an overview of the technologies for platinum recovery from SAC, with a focus on enrichment and refining processes based on hydrometallurgical techniques. Future directions for research and development in platinum recovery from SAC are also proposed.
Article
Metallurgy & Metallurgical Engineering
Laurence Whitty-Leveille, Jean-Christophe Tremblay-Cantin, Audrey Picard-Lafond, Denis Boudreau, Nicolas Reynier, Dominic Lariviere
Summary: Core-shell magnetic nanoparticles functionalized with a Schiff base ligand were synthesized for uranium extraction, showing high adsorption capacity and selectivity, while also demonstrating strong reusability.
Article
Engineering, Chemical
Harshit Mahandra, Fariborz Faraji, Atefeh Azizitorghabeh, Ahmad Ghahreman
Summary: For the first time, the application of an ionic liquid, Cyphos IL 101, for the selective recovery of gold from thiosulfate leachate of sulfidic gold ore by solvent extraction was evaluated. The study showed that Cyphos IL 101 achieved selective extraction of gold over copper and silver at A/O = 5, and toluene was the best choice as the diluent. Gold stripping from the loaded organic solution was done effectively using 5% thiourea in 1% HCl solution.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Metallurgy & Metallurgical Engineering
Wataru Yoshida, Masahiro Goto
Summary: A ternary mixed extractant system consisting of tri-n-octylphosphine oxide, Versatic 10, and phosphonic ester (PC-88A) was used for solvent extraction of scandium(III). The addition of tri-n-octylphosphine oxide and Versatic 10 significantly improved the separation factor of scandium over zirconium compared to a single extractant system. The optimum mixing ratio was found to be 10 mol% PC-88A, 60 mol% tri-n-octylphosphine oxide, and 30 mol% Versatic 10, resulting in 90% scandium extraction and separation factors > 140 for other metals at pH 2. Countercurrent multistage extraction of scandium achieved 99% recovery from 1800 mg dm-3 scandium with a flow ratio (A/O) of 1.01, and stripping efficiency reached >98% with 7 mol dm-3 H3PO4. A conceptual flowsheet for scandium recovery from waste solutions of laterite ore leachate is proposed based on the results.
Article
Engineering, Environmental
Zhengen Zhou, Baozhong Ma, Chengyan Wang, Yongqiang Chen, Ling Wang
Summary: A process for separation and recovery of Sc from high pressure acid leach (HPAL) liquor of limonitic laterite was proposed. Through precipitation and leaching, Sc can be efficiently recovered from limonitic laterite.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Environmental Sciences
P. K. Parhi, P. K. Misra
Summary: Solvent extraction separation of molybdenum from a sulphate leach solution was carried out using N-Methyl-N, N, N-tri-octyl-ammonium chloride. The study investigated the extraction conditions, including pH, extractant concentration, temperature, and phase ratio, to achieve selective and enriched extraction of molybdenum. The results showed successful extraction and stripping of molybdenum using the proposed conditions, leading to the precipitation of high purity MoO3.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Chemical
Sayed-Ali Moussaoui, Anne Lelias, Bertrand Braibant, Daniel Meyer, Damien Bourgeois
Summary: A new reagent THMA was proposed for palladium extraction from waste, showing superior distribution ratios and selectivity compared to previous diamide reagents. The use of excess DHA during THMA preparation demonstrated improved kinetics performance. The best performing formulation of extraction solvent can be easily prepared from commercially available chemicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Felipe Olea, Matias Valenzuela, Elsie Zurob, Benjamin Parraguez, Ricardo Abejon, Rene Cabezas, Gaston Merlet, Ricardo Tapia, Julio Romero, Esteban Quijada-Maldonado
Summary: In this work, selective solvent extraction (SX) of molybdenum (Mo) and rhenium (Re) from a synthetic pregnant leach solution (PLS) using nine different hydrophobic eutectic solvents (HES) was studied. The experiments showed that only TOPO-based and N8881-Cl-based HES achieved selective extraction without emulsions, third phases or precipitates. The results indicated that HES could be attractive for a more sustainable mining industry.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Pankaj Kumar Choubey, Om Shankar Dinkar, Rekha Panda, Archana Kumari, Manis Kumar Jha, Devendra Deo Pathak
Summary: A novel route has been developed to selectively extract lithium, cobalt, and manganese from discarded lithium ion batteries, achieving high efficiency in separation and recovery through a series of solvent extraction and precipitation steps.
Article
Chemistry, Multidisciplinary
Jong Hyuk Jeon, Ana Belen Cueva Sola, Jin-Young Lee, Janardhan Reddy Koduru, Rajesh Kumar Jyothi
Summary: This study investigated the adsorption and desorption characteristics of vanadium and tungsten ions using a simple porous anion-exchange resin. The applicability and feasible reuse of the resin were tested by recovering both metals from real spent catalysts.
Review
Engineering, Chemical
Junlian Wang, Wen Xu, Hui Liu, Fengshan Yu, Huajun Wang
Summary: This review categorized 183 compounds into seven major groups, and discussed their characteristics in Pd extraction mechanism, extractability, structure-activity relationships, extraction kinetics, acidity effect on Pd extraction efficiency, selectivity and stripping.
MINERALS ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
See Wee Koh, Jie Hu, Hoje Chun, Peng Yu, Junyu Ge, Zixu Sun, Wei Hong, Qiunan Liu, Kyungju Nam, Byungchan Han, Zheng Liu, Hong Li
Summary: In this study, two-dimensional ternary palladium phosphoronitride (Pd3P2Nx) was synthesized for the first time for oxygen reduction reaction (ORR) catalysis, with a rational design guided by first-principles density functional theory calculations. The doping process significantly increased the mass activity of the palladium phosphorus sulfide compound and improved its kinetics and stability for ORR. The ORR diffusion-limited current density of Pd3P2Nx exceeded that of commercial Pt/C, showcasing fast kinetics and robust long-term stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
K. Nivetha, S. Kalainathan, M. Yamada, Y. Kondo, F. Hamada
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Chemistry, Inorganic & Nuclear
Uma Maheswara Rao Kunda, Manabu Yamada, Fumio Hamada
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2017)
Article
Metallurgy & Metallurgical Engineering
Takashi Kimuro, Muniyappan Rajiv Gandhi, Uma Maheswara Rao Kunda, Fumio Hamada, Manabu Yamada
Article
Chemistry, Multidisciplinary
Manabu Yamada, Muniyappan Rajiv Gandhi, Yu Kaneta, Yetian Hu, Atsushi Shibayama
Article
Engineering, Chemical
Manabu Yamada, Muniyappan Rajiv Gandhi, Yu Kaneta, Nozomi Kimura, Hiroshi Katagiri
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2018)
Article
Materials Science, Multidisciplinary
Manabu Yamada, Yu Kaneta, Muniyappan Rajiv Gandhi, Uma Maheswara Rao Kunda, Atsushi Shibayama
Article
Multidisciplinary Sciences
Muniyappan Rajiv Gandhi, Manabu Yamada, Kazutoshi Haga, Atsushi Shibayama
SCIENTIFIC REPORTS
(2017)
Article
Multidisciplinary Sciences
Manabu Yamada, Muniyappan Rajiv Gandhi, Atsushi Shibayama
SCIENTIFIC REPORTS
(2018)
Article
Metallurgy & Metallurgical Engineering
Manabu Yamada, Yu Kaneta, Muniyappan Rajiv Gandhi, Uma Maheswara Rao Kunda, Atsushi Shibayama
Article
Chemistry, Multidisciplinary
Manabu Yamada, Fumiya Uemura, Uma Maheswara Rao Kunda, Takenori Tanno, Hiroshi Katagiri, Fumio Hamada
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Multidisciplinary Sciences
Manabu Yamada, Shun Kimura, Muniyappan Rajiv Gandhi, Atsushi Shibayama
Summary: Impregnated with 1,3-bis(2-(octylthio)propan-2-yl)benzene, Amberlite XAD-7 resin shows potential for efficient recovery of platinum group metals. The system demonstrates good reusability and high selectivity for Pd(II).
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
S. Anand, S. Kalainathan, T. V. Amrutha, K. Senthil, Manabu Yamada
Summary: A high-quality organic nonlinear single crystal of 2,3-dimethyl-N-[(E)-2,4,5-trimethoxy benzylidene] aniline (DTA) was successfully synthesized and grown using the slow evaporation technique. The crystal structure was confirmed by single-crystal X-ray diffraction, and various optical properties were analyzed. The DTA crystal exhibited potential for use in nonlinear optical device applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Manabu Yamada, Fumiya Uemure, Hiroshi Katagiri, Kazuhiko Akimoto, Fumio Hamada
Summary: The activated crystals of a supramolecular assembly of bromothiacalix[4]arene propyl ether with preorganized channel-like voids show selective and effective adsorption of isooctane vapor from a vapor mixture, demonstrating great potential for separation applications.
CHEMICAL COMMUNICATIONS
(2021)
Article
Crystallography
Manabu Yamada, Muniyappan Rajiv Gandhi, Kazuhiko Akimoto, Fumio Hamada
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2018)
Article
Metallurgy & Metallurgical Engineering
Arsyad Maulana Dzulqornain, Ana Belen Cueva-Sola, Kyeong Woo Chung, Jin-Young Lee, Rajesh Kumar Jyothi
Summary: This study presents a hydrometallurgical process for the separation of light rare earth elements (LREEs) using oxidation, precipitation, solvent extraction, and stripping techniques. Selective oxidation with potassium permanganate was employed for the separation of cerium (III). Solvent extraction with Cyanex 572 and cross-current scrubbing were used to achieve the separation of lanthanum (III) from neodymium (III) and praseodymium (III).
Article
Metallurgy & Metallurgical Engineering
Bo Chen, Shenxu Bao, Yimin Zhang
Summary: This study investigated the effects of Al, Fe, P, Si and Na on the precipitation characteristics of vanadium in the ultrasound precipitation system. The concentration upper limits and the negative influence on the precipitation kinetics were determined for each impurity. The findings provide theoretical and technical support for the industrial application of ultrasound precipitation technology.
Article
Metallurgy & Metallurgical Engineering
Chunlin He, Mingwei Qi, Yun Liu, Zunzhang Liu, Yuezhou Wei, Toyohisa Fujita, Guifang Wang, Shaojian Ma, Wenchao Yang, Junyuan Gan
Summary: In this study, D201 x 7 resin and tartaric acid were used as materials and complexing agents for the separation of germanium from sulfuric acid solution. The study successfully achieved the separation of germanium and demonstrated the high selectivity and adsorption performance of the resin.
Article
Metallurgy & Metallurgical Engineering
Xiaobo Zhu, Yue Liu, Chen Ma, Wang Li
Summary: A selective and highly effective method for the extraction and separation of V(IV) and Fe(III) using N235 and P507 as solvent extractants is proposed. The pH, composition, and concentration of the extractant mixture have significant effects on the extraction efficiency and separation factor. The mixing of P507 and N235 generates the P507 monomer, which enhances the extraction efficiency and weakens the stability of vanadium containing extraction complex. Cation exchange process forms the extraction complexes.
Article
Metallurgy & Metallurgical Engineering
B. Behnajady, J. Yousefi Seyf, S. Karimi, M. Moradi, M. Sohrabi
Summary: Deep eutectic solvents (DES) have potential as environmentally-friendly solvents for recovering metals from spent lithium-ion batteries (LIBs). Experimental and molecular dynamics simulation results showed that the chloride ions in DES can form complexes with lithium, manganese, and nickel ions, facilitating their extraction.
Review
Metallurgy & Metallurgical Engineering
Sebastian Kinas, Dorota Jermakowicz-Bartkowiak, Anna Dzimitrowicz, Piotr Cyganowski
Summary: The high demand for platinum-group metals (PGMs) and Re in economical and industrial applications related to environmental protection and energy conversion/storage has led to resource scarcity. Thus, it is crucial to recover and recycle these rare metals. This study critically reviews the recent progress in the effective recovery of PGMs and Re from materials relevant to sustainable technologies, emphasizing practical aspects, environmental impact, and issues related to the unit processes of recovery.
Article
Metallurgy & Metallurgical Engineering
Guopeng Yang, Qinggang Li, Guiqing Zhang, Mingyu Wang, Zuoying Cao, Wenjuan Guan, Jiawei Du, Shengxi Wu
Summary: The study proposes an efficient, clean, and economical process for recovering V2O5 from titanium-white waste through hydrogen peroxide stripping and precipitation of vanadium products by heating. Experimental results show that the use of D2EHPA as a modifier prolongs the duration of maximum stripping efficiency, enabling continuous operation.
Article
Metallurgy & Metallurgical Engineering
Guisu Yu, Shuainan Ni, Yun Gao, Ditang Mo, Zhiyuan Zeng, Xiaoqi Sun
Summary: This research proposes a novel green process for the selective recovery of rare earth elements (RE) from spent NdFeB permanent magnet using hydrophobic deep eutectic solvent (HDES). Through optimization of extraction conditions and stripping method, efficient and clean separation and recovery have been achieved.
Article
Metallurgy & Metallurgical Engineering
Jia Li, Xinsheng Wu, Xiaozhou Zhou, Li Zeng, Shengxi Wu, Mingyu Wang, Wenjuan Guan, Zuoying Cao, Qinggang Li, Guiqing Zhang
Summary: This paper presents a complete hydrometallurgical route for the full-component utilization of deep-sea polymetallic nodules (DPN), achieving high recovery efficiency and near-zero waste production with low energy consumption.
Article
Metallurgy & Metallurgical Engineering
Sanae Elmisaoui, Abderrazak M. Latifi, Lhachmi Khamar
Summary: A first principles model is developed to describe the dissolution mechanism of phosphate ore particles in a solution of phosphoric acid. The model accounts for non-uniform size of ore particles using particle size distributions and quantifies their influence on the model predictions. A global estimability analysis is carried out to determine the estimable parameters from experimental data, and the predictions show good agreement with the experimental data. The computed activation energy indicates that diffusion is the rate limiting step of the dissolution process.
