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Golik VI, Klyuev RV, Martyushev NV, Kondratiev VV, Tynchenko VS, Gladkikh VA, Iushkova LV, Brigida V. Reuse and Mechanochemical Processing of Ore Dressing Tailings Used for Extracting Pb and Zn. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7004. [PMID: 37959601 PMCID: PMC10647765 DOI: 10.3390/ma16217004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/09/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023]
Abstract
The increasing accumulation of rock waste obtained due to ore processing and its environmental impacts, such as acid mine drainage and elevated concentrations of heavy metals in soils, necessitates the transformation of mining technologies based on the concept of circular waste management. The research is aimed at improving the parameters of the mechanical activation effect produced on technogenic georesources, as well as at expanding the application scope of disintegrators in the field of using the partial backfill of the mined-out space when developing stratified deposits. In this regard, the research purpose was to substantiate the parameters of extracting metals from enrichment tailings using their mechanochemical activation to ensure cyclic waste management. The research involved the application of three-dimensional interpolation methods used for processing the data and the graphical representation. As a result, the following was found to be characteristic of the waste of the Sadonsky mine management. The degree of extracting zinc from pre-activated tailings increases logarithmically when the H2SO4 concentration and the NaCl proportion decrease 3.5 times. The degree of extracting lead from the activated tailings increases according to the Fourier law when decreasing the NaCl mass concentration, and an optimal range of the H2SO4 (0.38-0.51%) proportion decreases six times. One of the key results of the research is the justification of expanding the scope of applying disintegrators in the case of a directed activation influence exerted on the components of the stowing strips. The obtained results expand the understanding of the mechanism of the influence of the mechanochemical activation of dry tailings on the reactivity unevenness when extracting several metals from them.
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Affiliation(s)
- Vladimir I. Golik
- Department “Technique and Technology of Mining and Oil and Gas Production”, Moscow Polytechnic University, 33 B. Semenovskaya St., 107023 Moscow, Russia; (V.I.G.); (R.V.K.)
| | - Roman V. Klyuev
- Department “Technique and Technology of Mining and Oil and Gas Production”, Moscow Polytechnic University, 33 B. Semenovskaya St., 107023 Moscow, Russia; (V.I.G.); (R.V.K.)
| | - Nikita V. Martyushev
- Materials Science Department, Tomsk Polytechnic University, 30 Lenin Ave., 634050 Tomsk, Russia
| | - Viktor V. Kondratiev
- Laboratory of Geochemistry of Ore Formation and Geochemical Methods of Prospecting, A. P. Vinogradov Institute of Geochemistry of the Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia
| | - Vadim S. Tynchenko
- Department of Technological Machines and Equipment of Oil and Gas Complex, School of Petroleum and Natural Gas Engineering, Siberian Federal University, 660041 Krasnoyarsk, Russia;
- Information-Control Systems Department, Institute of Computer Science and Telecommunications, Reshetnev Siberian State University of Science and Technology, 660037 Krasnoyarsk, Russia
- Artificial Intelligence Technology Scientific and Education Center, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Vitaliy A. Gladkikh
- Stroytest Research and Testing Center, Moscow State University of Civil Engineering, 26 Yaroslavskoye Shosse, 129337 Moscow, Russia
| | - Liudmila V. Iushkova
- Basic Department, Higher School of Restaurant Management, Siberian Federal University, 660041 Krasnoyarsk, Russia
- Department of State and Municipal Administration, Siberian Fire and Rescue Academy of State Fire Service of the Ministry of Emergency Situations of Russia, 662972 Zheleznogorsk, Russia
| | - Vladimir Brigida
- Department of Biomedical, Veterinary and Ecological Directions, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia;
- Research Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences, 4 Kryukovskiy Tupik, 111020 Moscow, Russia
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Lin HN, Lin CK, Chang PJ, Chang WM, Fang A, Chen CY, Yu CC, Lee PY. Effect of Tantalum Pentoxide Addition on the Radiopacity Performance of Bi 2O 3/Ta 2O 5 Composite Powders Prepared by Mechanical Milling. MATERIALS 2021; 14:ma14237447. [PMID: 34885606 PMCID: PMC8659089 DOI: 10.3390/ma14237447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022]
Abstract
Among the various phases of bismuth oxide, the high temperature metastable face-centered cubic δ phase attracts great attention due to its unique properties. It can be used as an ionic conductor or an endodontic radiopacifying material. However, no reports concerning tantalum and bismuth binary oxide prepared by high energy ball milling and serving as a dental radiopacifier can be found. In the present study, Ta2O5-added Bi2O3 composite powders were mechanically milled to investigate the formation of these metastable phases. The as-milled powders were examined by X-ray diffraction and scanning electron microscopy to reveal the structural evolution. The as-milled composite powders then served as the radiopacifier within mineral trioxide aggregates (i.e., MTA). Radiopacity performance, diametral tensile strength, setting times, and biocompatibility of MTA-like cements solidified by deionized water, saline, or 10% calcium chloride solution were investigated. The experimental results showed that subsequent formation of high temperature metastable β-Bi7.8Ta0.2O12.2, δ-Bi2O3, and δ-Bi3TaO7 phases can be observed after mechanical milling of (Bi2O3)95(Ta2O5)5 or (Bi2O3)80(Ta2O5)20 powder mixtures. Compared to its pristine Bi2O3 counterpart with a radiopacity of 4.42 mmAl, long setting times (60 and 120 min for initial and final setting times) and 84% MG-63 cell viability, MTA-like cement prepared from (Bi2O3)95(Ta2O5)5 powder exhibited superior performance with a radiopacity of 5.92 mmAl (the highest in the present work), accelerated setting times (the initial and final setting time can be shortened to 25 and 40 min, respectively), and biocompatibility (94% cell viability).
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Affiliation(s)
- Hsiu-Na Lin
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei 110, Taiwan
| | - Chung-Kwei Lin
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Pei-Jung Chang
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 111, Taiwan
| | - Wei-Min Chang
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Alex Fang
- Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, TX 77843, USA;
| | - Chin-Yi Chen
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- Department of Materials Science and Engineering, Feng Chia University, Taichung 407, Taiwan
| | - Chia-Chun Yu
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- Center of Dental Technology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- Correspondence: (C.-C.Y.); (P.-Y.L.)
| | - Pee-Yew Lee
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; (H.-N.L.); (C.-K.L.); (P.-J.C.); (W.-M.C.); (C.-Y.C.)
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 202, Taiwan
- Correspondence: (C.-C.Y.); (P.-Y.L.)
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Geopolymer Based on Mechanically Activated Air-cooled Blast Furnace Slag. MATERIALS 2020; 13:ma13051134. [PMID: 32143319 PMCID: PMC7085006 DOI: 10.3390/ma13051134] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 11/24/2022]
Abstract
An efficient solution to increase the sustainability of building materials is to replace Portland cement with alkali-activated materials (AAM). Precursors for those systems are often based on water-cooled ground granulated blast furnace slags (GGBFS). Quenching of blast furnace slag can be done also by air but in that case, the final product is crystalline and with a very low reactivity. The present study aimed to evaluate the cementitious properties of a mechanically activated (MCA) air-cooled blast furnace slag (ACBFS) used as a precursor in sodium silicate alkali-activated systems. The unreactive ACBFS was processed in a planetary ball mill and its cementing performances were compared with an alkali-activated water-cooled GGBFS. Mixes based on mechanically activated ACBFS reached the 7-days compressive strength of 35 MPa and the 28-days compressive strength 45 MPa. The GGBFS-based samples showed generally higher compressive strength values.
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