Article
Metallurgy & Metallurgical Engineering
Fangjia Yan, Xiaojuan Zhang, Edouard Asselin, Dongping Duan, Zhibao Li
Summary: The study utilized two interconnected reactors to produce high-quality SrCO3 by leaching celestite in NaHCO3 solution at high temperature. The new method avoids undesirable polluting by-products generated in the widely used black ash process. By investigating the precipitation kinetics of celestite in NaHCO3 at various temperatures, it was found that high temperature significantly enhanced the leaching conversion.
Article
Engineering, Petroleum
Yue Zhao, Zhaoyi Dai, Xin Wang, Chong Dai, Samridhdi Paudyal, Saebom Ko, Amy T. Kan, Mason Tomson
Summary: A new mechanistic model has been developed in this study to predict the kinetics of mineral scale crystallization with and without inhibitors. The model proposes that inhibitors can adsorb on the nucleus surfaces and increase the interfacial energy, thus prolonging the induction time. The model shows close agreement with experimental data and has potential applications in various disciplines.
Article
Materials Science, Ceramics
Kursat Icin, Sultan Ozturk, Sefa Emre Sunbul
Summary: This study investigated the production of strontium carbonate from concentrated celestite ore using mechanochemical synthesis. Through experiments, the optimal process parameters were found to be a stoichiometric ratio of 1:2 between SrSO4 and (NH4)2CO3, and a synthesis time of 200 minutes, resulting in high purity strontium carbonate production. Experimental analyses including DTA, TGA, XRD, SEM, EDX, TEM, and FT-IR were conducted throughout the production process to ensure purity.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ryo Kishida, Maab Elsheikh, Koichiro Hayashi, Akira Tsuchiya, Kunio Ishikawa
Summary: The study successfully fabricated interconnected porous CO3Ap blocks through a stepwise compositional transformation process. Removing water in gaps using filter paper was beneficial in preventing clogging and fabricating interconnected porous CSD blocks. Heat-treated CaCO3 blocks made from CSD block precursor showed higher mechanical strength.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
A. R. Lauer, R. Hellmann, G. Montes-Hernandez, N. Findling, W. L. Ling, T. Epicier, A. Fernandez-Martinez, A. E. S. Van Driessche
Summary: Multiple-step nucleation pathways exist in both inorganic and biomineral systems. Precise understanding of the nucleation steps and transformation mechanisms remains a challenging task. In this study, we investigated the nucleation pathway of SrSO4 under different solution parameters and found that the nucleation mechanism and the formation of intermediate phases are influenced by the physico-chemical conditions.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Energy & Fuels
Yue Zhao, Zhaoyi Dai, Chong Dai, Samridhdi Paudyal, Xin Wang, Saebom Ko, Amy T. Kan, Mason Tomson
Summary: The study investigates the formation and inhibition of celestite scale, develops a semiempirical model based on experimental and literature data, and predicts the minimum inhibitor concentration required for celestite scale control.
Article
Engineering, Chemical
M. H. El-Sadek, M. M. Farahat, H. H. Ali, Z. Zaki
Summary: This study presents a novel synthesis method for SrTiO3 using mechanical activation-assisted solid-state reaction. The mechanical activation enhances the chemical reactivity of SrSO4 and TiO2, enabling the synthesis of SrTiO3 at a high yield. The synthesized SrTiO3 exhibits a small crystallite size and cubic-like particle morphology.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Nastaran Dayani, Ali AmirArjmand, Mohsen Nouri-Khezrabad, Saeed Hasani
Summary: In this study, wet mechanochemical synthesis was used to convert Celestite into SrCO(3) nanopowder, achieving a purity of over 98% without the need for simultaneous heating. The optimal milling time for forming nanopowders with an average particle size of around 90 nm was determined to be 4 hours.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Jose Remigio Quinones-Gurrola, Juan Carlos Rendon-Angeles, Zully Matamoros-Veloza, Jose Luis Rodriguez-Galicia, Kazumichi Yanagisawa
Summary: SrZrO3-structured perovskite particles were prepared using Zr-gel and SrSO4 precursors in a KOH solution. The particle size varied depending on the type of Zr precursor used. In larger volumes of KOH solution, a byproduct called SrCO3 was produced and spontaneously dissolved at an intermediate stage.
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
(2023)
Article
Multidisciplinary Sciences
Jenna Poonoosamy, Mohamed Mahrous, Enzo Curti, Dirk Bosbach, Guido Deissmann, Sergey V. Churakov, Thorsten Geisler, Nikolaos Prasianakis
Summary: The co-precipitation of sulphate minerals like celestine and barite is widely studied due to their formation in natural and artificial systems. Recent advancements combining microfluidic experiments and modeling have allowed for verification of hypotheses on transport-coupled geochemical processes. Studies show that nucleation phase compositions can be approximated using classical nucleation theory, and that the formation of oscillatory zoning in crystals is not solely controlled by limited diffusional transport of solutes.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Leqing Deng, Meiying Feng, Ruiting Wang, Yusi Yang, Xiaogang Niu, Juan Zhang, Lulu Tan, Jianwen Zhang, Yifan Chen, Liang Zeng, Yujie Zhu, Lin Guo
Summary: Potassium-ion batteries are promising electrochemical energy storage technologies due to their low cost and high energy density, but face challenges with sluggish reaction kinetics and poor cycling stability using traditional intercalation-type cathode materials. This study proposes potassium iodide as a conversion-type cathode material and utilizes electrolyte modulation and separator modification to enhance its electrochemical performance, achieving an impressive capacity retention of 95.5% after 550 cycles. This research sheds light on the potential of high-performance electrode materials based on dissolution-precipitation reaction mechanisms for future KIBs.
ENERGY STORAGE MATERIALS
(2021)
Article
Materials Science, Ceramics
Keitaro Yamaguchi, Shinobu Hashimoto
Summary: Conventional ceramic sintering cannot harden carbonates easily due to their thermal decomposition, but the cold sintering process (CSP) allows for lower temperature hardening. This study used vaterite phase calcium carbonate as the starting material and found that as the cold sintering temperature increased, the bulk density and compressive strength of the hardened calcium carbonate also increased, with the maximum compressive strength achieved at 80 degrees Celsius.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Review
Materials Science, Multidisciplinary
Kunio Ishikawa, Koichiro Hayashi
Summary: This paper discusses the fabrication methods of carbonate apatite (CO(3)Ap) artificial bone, including dissolution-precipitation reaction and using a precursor. CO(3)Ap artificial bone has higher osteoconductivity, can be resorbed by osteoclasts, and is replaced by new bone through bone remodeling.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Rubi Resendiz-Ramirez, Aaron Rodriguez-Lopez, Jesus A. Diaz-Real, Humberto F. Delgado-Arenas, Azucena Osornio-Villa, Rosalba Hernandez-Leos, Vincent Vivier, Rene Antano-Lopez
Summary: This study investigates the electrochemical synthesis of magnetite nanoparticles through analysis of electrochemical impedance spectroscopy (EIS). Three models are proposed and their EIS spectra predicted, with a new model involving up to three adsorbed intermediate species providing the best fit to experimental data. However, the existing mechanisms do not fully explain all experimental results, highlighting the need for further refinement in understanding the reaction mechanism.
Article
Chemistry, Multidisciplinary
Shuang Gan, Min Zhang, Yahong Zhou, Caijuan Guo, Shuai Yang, Yan Xie, Xinzhe Wang, Lin Sun, Zhuo Ning
Summary: This study quantitatively analyzed the impact of microbially-driven mineralization of BTEX on water-rock interaction. Nitrate and toluene were used as the electron acceptor and BTEX, respectively. A mathematical model was established and validated with experiments, demonstrating the main role of H+ in CaCO3 dissolution or precipitation. The model provided a tool for assessing toluene biodegradation by monitoring groundwater ion concentrations.
APPLIED SCIENCES-BASEL
(2023)
Article
Metallurgy & Metallurgical Engineering
Mert Zoraga, Cem Kahruman, Ibrahim Yusufoglu
Article
Dentistry, Oral Surgery & Medicine
Isil Turp, Ergun Bozdag, Emin Sunbuloglu, Cem Kahruman, Ibrahim Yusufoglu, Gulsen Bayraktar
CLINICAL ORAL INVESTIGATIONS
(2014)
Article
Materials Science, Multidisciplinary
A. O. Kalpakli, A. Arabaci, C. Kahruman, I. Yusufoglu
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2013)
Article
Chemistry, Multidisciplinary
Mert Zoraga, Cem Kahruman
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
(2014)
Article
Materials Science, Multidisciplinary
Aliye Arabaci, Ibrahim Yusufoglu
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2014)
Article
Optics
Hande Cavus Arslan, Ibrahim Yusufoglu, Mustafa M. Aslan
OPTICAL ENGINEERING
(2014)
Article
Metallurgy & Metallurgical Engineering
Mert Zoraga, Cem Kahruman, Ibrahim Yusufoglu
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2019)
Article
Chemistry, Physical
Mert Zoraga, Sedat Ilhan, Ahmet Orkun Kalpakli
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2020)
Article
Green & Sustainable Science & Technology
Ahmet Orkun Kalpakli, Mine Caymaz, Sedat Ilhan, Mert Zoraga
Summary: A large amount of EAFD, a hazardous waste from steelmaking, contains zinc. This study investigated the recovery of Zn as ZnO from EAFD through mechanochemical leaching, solvent extraction, precipitation, and thermal decomposition. Optimal leaching parameters and efficient extraction and precipitation processes were determined to obtain high-purity ZnO.
JOURNAL OF SUSTAINABLE METALLURGY
(2021)
Article
Chemistry, Multidisciplinary
Mert Zoraga, Tugba Yucel, Sedat Ilhan, Ahmet Orkun Kalpakli
Summary: This study investigated the dissolution behavior of zinc and iron compounds in electric arc furnace dust (EAFD) in nitric acid solutions, and determined the optimal leaching conditions.
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
(2022)
Article
Metallurgy & Metallurgical Engineering
Mert Zoraga
Summary: This study focuses on the mechanochemical extraction of Mo, Ni, V, Al, and P from spent hydrodesulphurisation (HDS) catalysts using H2C2O4. The extraction rate was influenced by rotational speed, H2C2O4 concentration, ball to dust weight ratio, and solid-to-liquid ratio. The reactions for Mo, V, and P extraction increased with H2C2O4 concentration, but the dissolution behavior of Ni was different. At optimum conditions, the extraction efficiencies reached 87% Mo, 44% Ni, 82% V, 36% Al, and 78% P.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Proceedings Paper
Chemistry, Physical
Anil Eser, Cem Kahruman, Ibrahim Yusufoglu
CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2014
(2014)
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.