Article
Thermodynamics
Ida Chojnacka, L. Rycerz, J. Kapala, M. Gaune-Escard, M. Salamon
Summary: The phase equilibria in the YbCl2-MCl (M = Li, Na) binary systems were investigated using differential scanning calorimetry technique. The YbCl2-LiCl system exhibited a eutectic and a stoichiometric compound LiYb2Cl5. The YbCl2-NaCl system exhibited a eutectic as well. Solid solutions were found in both systems. The mixing enthalpies of liquid YbCl2-MCl (M = Na, K) mixtures were measured and found to be negative values.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
P. Haseli, R. Jacob, M. Liu, P. Majewski, F. C. Christo, F. Bruno
Summary: The phase diagram of the KCl-Na2CO3 system was experimentally investigated using DSC, with the eutectic point and composition determined through the Tammann diagram. The physical properties at the eutectic point were accurately studied, confirming the existence of a solid solution.
THERMOCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Wen Luo, Guochen Hu, Junshuai Ding, Jijun Wu, Wenhui Ma
Summary: In recent years, the chlorination leaching separation process in the field of hydrometallurgy has seen significant development, but the chlorination separation process in the field of pyrometallurgy lags behind. This paper investigates the thermodynamics of vacuum chlorination volatilization of valuable metals from spent lithium-ion batteries, showing that chlorination helps achieve the trapping and separation of singlet metals. The paper also provides a theoretical map of the stable regions of valuable metal chlorides and determines the order of separation of each chloride at a specific pressure, as well as discussing the behavior of excess CuCl2 in the system at different temperatures.
Article
Chemistry, Physical
L. Rycerz, J. Kapala, M. Gaune-Escard
Summary: The molar enthalpies of mixing in liquid potassium chloride-uranium(III) chloride mixtures were measured at 1113 K, showing negative enthalpies with a minimum value of about -17.5 kJ/mol. The existence of complexes in the liquid mixtures was discussed based on the obtained results, re-examining the KCl-UCl3 phase diagram with the inclusion of K3UCl6 compound.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
J. Leitner, K. Hornikova, N. Studnickova, D. Sedmidubsky
Summary: The solid-liquid equilibria of three binary systems involving paracetamol (PAR) were investigated using differential scanning calorimetry (DSC). It was found that all three systems exhibited eutectic behavior, with eutectic temperatures of 386.1 K, 355.6 K, and 348.1 K for PAR-PEP.HCl, PAR-TMD.HCl, and PAR-IBU, respectively.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
R. Maruchenko, P. Espeau
Summary: This study reviewed and corrected phase diagrams of thymol-ibuprofen and l-menthol-ibuprofen systems using thermal analysis and thermodynamic approach. It was found that both systems exhibit a eutectic behavior with complete immiscibility in the solid state. The conflicting result in the l-menthol-ibuprofen system could be attributed to the samples being already melted before cooling.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Chemistry, Physical
Danyang Wang, Jiaying He, Jie Jiang, Ya-fei Guo, Shi-qiang Wang
Summary: The solid-liquid phase equilibria of the ternary systems (Li2SO4 + Li2CO3 + H2O) and (LiCl + Li2CO3 + H2O) were investigated through experimental methods. The results showed that Li2CO3 has a large crystallization region in both systems, indicating an easy separation from the brines.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Vladimir Zverev, Radel R. Gimaev, Aleksei S. Komlev, Boris B. Kovalev, F. G. Queiroz, V. D. Mello
Summary: This work presents a method to compare experimental and modeling results of lanthanide metals using dysprosium as an example, effectively addressing the limitations of ab initio calculations for 4f elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Physical
Victoria G. Grossman, Maxim S. Molokeev, Bair G. Bazarov, Jibzema G. Bazarova
Summary: New triple molybdates M5CrHf(MoO4)6 (M = K, Tl) and TlCrHf0.5(MoO4)3 were discovered in the ternary molybdate systems M2MoO4-Cr2(MoO4)3-Hf(MoO4)2 (M = K, Tl) in the subsolidus region. The crystal structures were refined and their thermal stability and electrical conductivity were investigated, showing high values for the former and relatively low values for the latter.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Thermodynamics
Hongmei Zhang, Shizhao Wang, Dongchan Li, Yingying Zhao, Zhihui Huang, Junsheng Yuan
Summary: This study conducted a systematic investigation using the isothermal solution equilibrium method on the quaternary and its subsystems at 288.15 K, drawing phase diagrams based on experimental solubility data. The results showed the formation of solid solutions and compound salts under different conditions in these systems.
FLUID PHASE EQUILIBRIA
(2021)
Article
Thermodynamics
Clement Mailhe, Stephane Gorsse, Boece Thirion, Elena Palomo, Marie Duquesne
Summary: The IRT method is a new dynamic calorimetry method based on infrared thermography that has been proven to efficiently establish phase diagrams of binary systems of organic materials. It shows potential for application in ternary systems with increased complexity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Clement Mailhe, Marie Duquesne
Summary: The infrared thermography method for estimating phase diagrams is being challenged in terms of its potential, given its simplicity, speed, and relatively low cost. A test campaign is underway to evaluate the impact of experimental parameters on the method's efficiency, focusing on acquisition frequency and heating rate. The study has assessed the accuracy of estimated phase diagrams for three binary systems and identified optimized parameters for further improving the method.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Tomas Soria-Biurrun, Jose M. Sanchez-Moreno, Karin Frisk
Summary: The liquid phase formation temperatures of the quinary system W-C-Co-Fe-Ni with a ratio of Fe:Co:Ni = 40:20:40 were determined using DSC analysis with an accurately defined experimental C-window of this system with binder content of 14.3 +/- 2 wt%. Thermodynamic modelling was carried out using the CALPHAD approach and temperature-composition sections of the system with different binder contents were calculated to verify the rationality of the modelling. A good correlation between experimental and calculated results was observed, indicating that the experimental data can be well reproduced by the present modelling.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Thermodynamics
Yun-Yun Gao, Shi-Hua Sang, Zhuo-Min Liu, Shan-Shan Qu, Wei Yang
Summary: This paper provides detailed measurements and predictions of mineral solubilities in different salt systems. The phase diagrams were constructed based on experimental results, and the Pitzer ion interaction model was used to predict the phase equilibria. The predicted values were in good agreement with the experimental data.
FLUID PHASE EQUILIBRIA
(2022)
Article
Chemistry, Physical
Qing-Jie Li, David Sprouster, Guiqiu Zheng, Jorg C. Neuefeind, Alexander D. Braatz, Joanna Mcfarlane, Daniel Olds, Stephen Lam, Ju Li, Boris Khaykovich
Summary: The resurgence of molten salt nuclear reactors creates interesting problems in molten salt chemistry, where the composition and properties of salts change due to fission and corrosion. A study on atomic structure of molten NaCl-CrCl3 found networks of CrCl63- octahedra and an intermediate-range order with a non-monotonic temperature behavior, in agreement with ab initio simulations. The corrosion results in minute quantities of dissolved Cr, leading to potential changes in molten-salt properties.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Thermodynamics
A. Danczak, B. Salamon, J. Kapala, L. Rycerz, M. Gaune-Escard
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2017)
Article
Thermodynamics
Yassine Bounouri, Madjid Berkani, Abdelmalek Zamouche, Anna Danczak, Ida Chojnacka, Leszek Rycerz
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2018)
Article
Thermodynamics
A. Danczak, L. Rycerz
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2019)
Article
Thermodynamics
Salima Haroune, Madjid Berkani, Yassine Bounouri, Anna Danczak, Leszek Rycerz, Jan Kapala
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2020)
Article
Green & Sustainable Science & Technology
Lassi Klemettinen, Riina Aromaa, Anna Danczak, Hugh O'Brien, Pekka Taskinen, Ari Jokilaakso
Article
Materials Science, Multidisciplinary
Ronja Ruismaki, Tommi Rinne, Anna Danczak, Pekka Taskinen, Rodrigo Serna-Guerrero, Ari Jokilaakso
Article
Geochemistry & Geophysics
Ronja Ruismaki, Anna Danczak, Lassi Klemettinen, Pekka Taskinen, Daniel Lindberg, Ari Jokilaakso
Article
Chemistry, Multidisciplinary
Andrzej Zak, Anna Danczak, Wlodzimierz Dudzinski
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS
(2020)
Article
Geochemistry & Geophysics
Anna Danczak, Ronja Ruismaki, Tommi Rinne, Lassi Klemettinen, Hugh O'Brien, Pekka Taskinen, Ari Jokilaakso, Rodrigo Serna-Guerrero
Summary: Integrating froth flotation and nickel-slag cleaning process for metal recovery from spent batteries was studied using anodic graphite as the main reductant. The composition of metal alloy/matte needs to be adjusted depending on further steps for metal recovery, as increasing concentrations of graphite can affect the Fe concentration in both metal alloy and matte. The distribution coefficients of cobalt and nickel between the metallic or sulfidic phase and the coexisting slag increased with the increasing amount of spent batteries in the starting mixture.
Article
Materials Science, Multidisciplinary
Tommi Rinne, Anna Klemettinen, Lassi Klemettinen, Ronja Ruismaki, Hugh O'Brien, Ari Jokilaakso, Rodrigo Serna-Guerrero
Summary: In this study, a froth flotation process was used to treat industrial lithium-ion battery waste, achieving selective separation of electrode particles and metallic-rich fractions. The recovery rates of cathode active elements and graphite were approximately 80% and 98.8% respectively. The recovered metals were then used in high-temperature Cu-slag reduction process. The study also investigated the behavior of valuable and hazardous metals as well as the influence of Cu-slag-to-spent battery ratio.
Article
Geochemistry & Geophysics
Anna Klemettinen, Andrzej Zak, Ida Chojnacka, Sabina Matuska, Anna Lesniewicz, Maja Welna, Zbigniew Adamski, Lassi Klemettinen, Leszek Rycerz
Summary: A simplified method for leaching rare earth elements from NdFeB magnets was investigated, allowing selective leaching of NdFeB while leaving nickel in a solid state. The use of hydrochloric and sulfuric acids as leaching agents can increase the concentration of rare earth ions in the obtained solutions.
Article
Electrochemistry
Anna Danczak, Lassi Klemettinen, Matti Kurhila, Pekka Taskinen, Daniel Lindberg, Ari Jokilaakso
Article
Chemistry, Physical
Anna Danczak, Ida Chojnacka, Sabina Matuska, Kamila Marcola, Anna Lesniewicz, Maja Welna, Andrzej Zak, Zbigniew Adamski, Leszek Rycerz
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING
(2018)
