Hydrometallurgy最新文献_第2页

Direct co-extraction of nickel and cobalt from sulfuric acid leachate of laterite ore using extractant DY319 in kerosene followed by impurity removal using D2EHPA to produce high purity mixed concentrated solution 用DY319萃取剂在煤油中直接共萃取红土矿硫酸浸出液中的镍和钴，再用D2EHPA除杂，制得高纯混合浓缩溶液

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-12-01 DOI: 10.1016/j.hydromet.2025.106622

Situmeang Elfrida Margaretha , Wenjing Wan , Wenjuan Guan , Mingbo Fu , Yanni An , Qinggang Li

{"title":"Direct co-extraction of nickel and cobalt from sulfuric acid leachate of laterite ore using extractant DY319 in kerosene followed by impurity removal using D2EHPA to produce high purity mixed concentrated solution","authors":"Situmeang Elfrida Margaretha , Wenjing Wan , Wenjuan Guan , Mingbo Fu , Yanni An , Qinggang Li","doi":"10.1016/j.hydromet.2025.106622","DOIUrl":"10.1016/j.hydromet.2025.106622","url":null,"abstract":"<div><div>Acid type extractants are commonly used for extracting nickel and cobalt from acid leachates of nickel laterite ore. This study aims to show the potential of the commercial acid type extractant DY319 extractant for direct co-extraction of nickel and cobalt using a synthetic sulfuric solution representing a high-pressure acid leachate of nickel laterite ore. The NMR spectroscopy characterized DY319 which has a molecular formula of C<sub>16</sub>H<sub>32</sub>O<sub>2</sub> with compound name of 4-hexyl decanoic acid. The FTIR spectroscopy of the loaded organic phase showed of the involvement of C=O group in a metal-ligand complex formation. The selectivity order of metal for DY319 followed the sequence: Cu > Zn > Ni > Co > Mn > Ca > Mg and this extractant operated better at room temperature. The McCabe-Thiele plots of the extraction at O/A phase volume ratio 1:3 with initial solution pH of 5 showed the need for 3 stages of extraction to completely separate nickel and cobalt from the solution. The stripping results indicated that nickel and cobalt can be stripped easily in low H<sub>2</sub>SO<sub>4</sub> concentration with a stripping efficiency of 99.5 % for nickel and 92.4 % for cobalt. The multi-stage counter-current extraction of DY319 test was conducted and resulted in an extraction efficiency of 98.4 % Ni and 95.3 % Co. The use of D2EHPA removed impurities and resulted a final solution of 113 g/L Ni, 4.73 g/L Co, and impurities below 2 mg/L.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106622"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective recovery of gold from electronic circuit board waste with pyrogallol-formaldehyde polymer based resin 邻苯二酚-甲醛聚合物基树脂选择性回收电子电路板废料中的金

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2026-01-11 DOI: 10.1016/j.hydromet.2026.106633

Engin Deniz Parlar , Mücahit Abdullah Sarı , Mustafa Can

{"title":"Selective recovery of gold from electronic circuit board waste with pyrogallol-formaldehyde polymer based resin","authors":"Engin Deniz Parlar , Mücahit Abdullah Sarı , Mustafa Can","doi":"10.1016/j.hydromet.2026.106633","DOIUrl":"10.1016/j.hydromet.2026.106633","url":null,"abstract":"<div><div>Electrical and electronic waste (e-waste) has become one of the major concerns due to its high content of valuable recyclable materials such as gold, platinum, and silver. In this study, a pyrogallol-formaldehyde-based polymer (PGNR) was synthesized and used as an adsorbent for the recovery of gold. The synthesized PGNR was characterized using BET, FTIR, TGA, and NMR analyses. The adsorption performance of PGNR was evaluated under varying conditions, including pH values, adsorbent amounts, initial Au(III) concentration, contact time, and temperature. Experimental data were analyzed through adsorption isotherms, kinetic, and thermodynamic models. The adsorption kinetics followed the pseudo-second order model, while the Langmuir isotherm best described the isotherm data. The Langmuir model revealed a maximum monolayer adsorption capacity of 2457 mg g<sup>−1</sup> at 328 K for Au(III) ions. The FTIR analysis after adsorption indicated that polyphenolic functional groups played a crucial role in the binding of Au(III). Additionally, XRD and XPS analyses confirmed that the majority of Au(III) ions were reduced to metallic gold on the polymer surface. The resin demonstrated high efficiency in adsorbing Au(III) from real e-waste leach solutions containing high levels of base metals, making it a promising material for the selective recovery of gold from electronic waste.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106633"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of high-purity beryllium hydroxide via synergistic extraction with unsaponified extractants 未皂化萃取剂协同萃取制备高纯氢氧化铍

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2026-01-14 DOI: 10.1016/j.hydromet.2026.106629

Zhiyuan Sun , Zhongwei Zhao , Yongli Li , Ruizhuo Liu , Dongmei Wang , Bingbo Niu

{"title":"Preparation of high-purity beryllium hydroxide via synergistic extraction with unsaponified extractants","authors":"Zhiyuan Sun , Zhongwei Zhao , Yongli Li , Ruizhuo Liu , Dongmei Wang , Bingbo Niu","doi":"10.1016/j.hydromet.2026.106629","DOIUrl":"10.1016/j.hydromet.2026.106629","url":null,"abstract":"<div><div>Beryllium plays an important role in the development of the aerospace, nuclear, and national defense industries in China. This work proposes a synergistic extraction system composed of unsaponified extractants to effectively and selectively separate Be(II) over Al(III) and Fe(III) from an acid leachate. Application of the proposed method leads to the recovery of Be(OH)<sub>2</sub> with purity higher than 99.9 %. The unsaponified extractants can further reduce the pH of the aqueous phase during the extraction process, thereby lowering the extraction efficiency of impurities such as Fe and Al. Additionally, the use of tri-n-butyl phosphate (TBP) as a synergist under the optimum conditions effectively inhibits the co-extraction of Fe (< 5.0 %) and Al (< 3.0 %) and improves the selectivity of Be extraction (≥ 75.0 %). With 50 g/L oxalic acid as a scrubber, the Fe and Al removal efficiency for single-stage washing reaches ≥95.0 %. The use of 3 mol/L sodium hydroxide as a stripping agent improves the single-stage Be stripping efficiency to over 93.0 % and the purity of Be(OH)<sub>2</sub> to over 99.9 %. The green extraction technology using unsaponified D2EHPA + TBP developed in this study has several advantages: (i) it overcomes the non-recyclability of Be raffinate, (ii) it increases the Be yield, and (iii) it achieves the efficient, clean production of high-purity Be(OH)<sub>2</sub>.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106629"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145972941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermodynamics and kinetics of gallium extraction from a leachate of brown corundum dust 棕刚玉粉尘浸出液中镓萃取的热力学和动力学

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-12-07 DOI: 10.1016/j.hydromet.2025.106625

Cong Gao , Juhua Zhang , Xujie Hui , Wei Zhang

{"title":"Thermodynamics and kinetics of gallium extraction from a leachate of brown corundum dust","authors":"Cong Gao , Juhua Zhang , Xujie Hui , Wei Zhang","doi":"10.1016/j.hydromet.2025.106625","DOIUrl":"10.1016/j.hydromet.2025.106625","url":null,"abstract":"<div><div>Brown corundum dust is a valuable gallium- containing secondary resource, with a Ga concentration ranging from 0.06 % to 0.20 %. Following alkaline leaching of brown corundum dust, a subsequent two-step carbonation-acid leaching process was implemented to reduce the levels of aluminum and silicon. However, the leachate still contained high levels of impurities, including Al, Si, K, and Fe. A solvent extraction system employing tributyl phosphate (TBP) with butyl acetate (as the diluent) was developed for the separation and purification of gallium. The mechanism by which TBP extracts gallium was elucidated by Fourier transform infrared spectroscopy, indicating an extraction reaction between the P<img>O bond in tributyl phosphate and GaCl<sub>4</sub><sup>−</sup>. The slope analysis determined the stoichiometric ratio of these two reactants as 0.5. The thermodynamic parameters of the extraction reaction were found as Δ<em>H</em><sup>o</sup> = 40.8 kJ/mol, Δ<em>S</em><sup>o</sup> = 146 J mol<sup>−1</sup> K<sup>−1</sup>, and Δ<em>G</em><sup>o</sup> = −2.58 kJ/mol. The maximum gallium loading capacity of 10 vol% TBP was determined to be 47.6 g/L. A Lewis cell was employed to investigate the influence of stirring rate, interfacial area, temperature, and reactant concentration on the kinetics of gallium extraction with TBP. The findings indicated that the extraction process was predominantly governed by the interfacial chemical reaction, exhibiting an apparent activation energy of 53.5 kJ/mol. The extraction rate equation was formulated as <em>r</em><sub>0</sub> = 0.013[Ga]<sup>1.21</sup>[TBP]<sup>0.62</sup>[HCl]<sup>0.15</sup>. In the practical solution system, the impurity elements, including Al, Si, and K, could be eliminated through solvent extraction at a rapid rate and under normal operating conditions, with the gallium extraction efficiency reaching 99.9 %.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106625"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145689603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective and sustainable lithium ion battery recycling strategy for circular economy: Ultrasound assisted direct leaching of black mass containing NMC/LCO/LMO/graphite mixed powders 循环经济中有效且可持续的锂离子电池回收策略：超声辅助直接浸出含有NMC/LCO/LMO/石墨混合粉末的黑色物质

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2026-01-09 DOI: 10.1016/j.hydromet.2026.106630

Halide Nur Dursun , Emircan Uysal , Fırat Burat , Sebahattin Gürmen

{"title":"Effective and sustainable lithium ion battery recycling strategy for circular economy: Ultrasound assisted direct leaching of black mass containing NMC/LCO/LMO/graphite mixed powders","authors":"Halide Nur Dursun , Emircan Uysal , Fırat Burat , Sebahattin Gürmen","doi":"10.1016/j.hydromet.2026.106630","DOIUrl":"10.1016/j.hydromet.2026.106630","url":null,"abstract":"<div><div>The lithium-ion battery (LiB) is an indispensable component of contemporary technology, with applications in mobile phones, personal computers, and electric vehicles. The cathode materials LiCoO₂ (LCO), LiNi<sub>x</sub>Mn<sub>y</sub>Co<sub>(1-x-y)</sub>O₂ (NMC), and LiMn₂O₄ (LMO) are widely utilized in these applications due to their specific energy values. The recovery of valuable metals (Li, Co, Ni, and Mn) from cathode materials in LiB whose effective lifespan has ended has become a necessity due to economic and environmental factors. In this study, a detailed characterization of the black mass obtained by sieving from the discharged and shredded LiB cells was performed. Subsequently, this study explicitly targeted a low-acid, short-time route, to directly leach mixed black mass, without prior graphite separation, assisted by ultrasonic probe sonication. Furthermore, this study examined the impact of various acids (HCl, H₂SO₄ and HNO₃), leaching times, concentration of acids and ascorbic acid (C₆H₈O₆) as the reducing agent, ultrasonic sound waves, solid/liquid ratios, and temperatures on leaching efficiency. The dissolution efficiencies of 96.8 % Li, 99.2 % Co, 96.4 % Mn, and 93.1 % Ni were achieved with 0.5 M H₂SO₄ concentration, 0.15 M ascorbic acid concentration, 20 g/L solid/liquid ratio, and 1 h of ultrasound-assisted leaching time. Thus, ∼95 % of all cathode metals were recovered at low acid concentration and short residence time without physically separating graphite and the active cathode material prior to leaching, highlighting the process simplicity and scalability.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106630"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-purity V2O5 production from titanomagnetite leachate purified by ion exchange resin 离子交换树脂净化钛磁铁矿渗滤液制备高纯V2O5

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-12-02 DOI: 10.1016/j.hydromet.2025.106623

José Helber Vinco, Heitor Augusto Duarte, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenório

{"title":"High-purity V2O5 production from titanomagnetite leachate purified by ion exchange resin","authors":"José Helber Vinco, Heitor Augusto Duarte, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenório","doi":"10.1016/j.hydromet.2025.106623","DOIUrl":"10.1016/j.hydromet.2025.106623","url":null,"abstract":"<div><div>Vanadium (V), predominantly used in steel production, is also a critical element for energy storage in redox flow batteries; however, producing high-purity vanadium remains challenging. This study reports, for the first time, the use of the anion-exchange resin LSC775(SO<sub>4</sub>) (polystyrene-based and in the sulfate form) for selective vanadium recovery from a real industrial leachate, motivated by vanadium(V) predominating as anionic vanadate species at the working pH. The feed solution originated from a secondary aqueous heap leaching, following alkaline roasting and primary leaching of vanadiferous titanomagnetite. It had a highly alkaline pH (10.3) and contained 3.7 g L<sup>−1</sup> V (∼33 %), with major contaminants Na, Si, and K (∼67 %) and minor Ca, Mg, P, Mo, Al, and Fe (∼0.2 %). Batch adsorption experiments were carried out to evaluate vanadium uptake, including equilibrium, kinetics, and thermodynamics. Fixed-bed column tests assessed vanadium breakthrough behavior, capacity, and resin reusability. Optimal V adsorption occurred at pH 2.0, consistent with the anion-exchange mechanism. The data followed the Langmuir isotherm and the pseudo-second order kinetic model, indicating monolayer adsorption via chemisorption. Thermodynamic parameters confirmed the process is endothermic (ΔH<sup>0</sup> > 0) and spontaneous (ΔG<sup>0</sup> < 0). In continuous-flow conditions (2 bed volumes per hour, 10 cycles), adsorption and elution efficiencies averaged 97.4 % and 98.9 %, respectively. The maximum adsorption capacity, per the Thomas model, was 249 mg g<sup>−1</sup>. The resin maintained high performance over multiple cycles, confirming its stability and recyclability. Vanadium was recovered by precipitation and calcination, yielding V<sub>2</sub>O<sub>5</sub> with >99.99 % purity. This work demonstrates the first successful application of LSC775(SO<sub>4</sub>) to selective vanadium recovery from a contaminant-rich secondary leachate.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106623"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound-assisted hydrolysis of secondary aluminum dross and mechanism: Reducing environmental impact and improving resource recovery 超声波辅助水解二次铝渣及其机理：减少环境影响，提高资源回收率

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-12-29 DOI: 10.1016/j.hydromet.2025.106627

Ning Luo, Jiantao Ju, Wenke Guo, Linbo Li, Jialiang An

引用次数: 0

Investigating chloride sources for lithium extraction from spent lithium iron phosphate batteries using TBP: Focusing on inherent iron utilization 用TBP法研究从废磷酸铁锂电池中提取锂的氯化物来源：以固有铁的利用为重点

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2026-01-02 DOI: 10.1016/j.hydromet.2025.106628

Xitong Bi , Xiaojiao Li , Tiantian Zhao , Pengfei Ma , Mingzhang Lin , Yinxi Zhou

{"title":"Investigating chloride sources for lithium extraction from spent lithium iron phosphate batteries using TBP: Focusing on inherent iron utilization","authors":"Xitong Bi , Xiaojiao Li , Tiantian Zhao , Pengfei Ma , Mingzhang Lin , Yinxi Zhou","doi":"10.1016/j.hydromet.2025.106628","DOIUrl":"10.1016/j.hydromet.2025.106628","url":null,"abstract":"<div><div>Solvent extraction is a critical process for lithium (Li) recovery from salt lake brine. The use of tributyl phosphate (TBP) as the extractant and ferric chloride (FeCl<sub>3</sub>) as the co-extractant significantly enhances Li extraction efficiency and selectivity. However, this method is seldom applied for lithium recovery from spent lithium batteries (LIB). This study, proposes a novel process for recovering Li from the leachate of spent lithium iron phosphate batteries (LiFePO<sub>4</sub>), using the iron source of LiFePO<sub>4</sub> to exert the effect of FeCl<sub>3</sub> co-extractant in the system. The system used TBP as the extractant and sulfonated kerosene as the diluent. Chlorine sources (NaCl, MgCl<sub>2</sub>, AlCl<sub>3</sub>) were added to investigate their effects on the extraction of Li from simulated leachate of LiFePO<sub>4</sub>. Additionally, Li was extracted from the real leachate. Through experiments using simulated solution, it was found that the extraction efficiency of Li could reach up to 73.1 % using AlCl<sub>3</sub> as the external chlorine source, with a chloride ion concentration (c(Cl<sup>−</sup>)) of 6 mol/L, a TBP volume ratio of 70 %, an acidity of 0.025 mol/L, and an extraction time of 15 min. Under these optimal extraction conditions, the extraction efficiency of Li from the actual leachate was demonstrated to be 36.0 %, showing the feasibility of Li extraction solely by relying on iron(III) ions in the leachate. Due to the limited iron content in the leachate, the secondary extraction efficiency of Li was increased to 61.0 % by adding FeCl<sub>3</sub>, which resulted in a final total extraction efficiency of 74.0 %.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106628"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145894178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilising micro-CT to analyse fluid dynamics in dual-porosity packing systems 利用微型ct分析双孔隙度充填系统的流体动力学

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-11-15 DOI: 10.1016/j.hydromet.2025.106606

Quan Zheng , Kunning Tang , Ying Da Wang , Samuel J. Jackson , Thomas Poulet , Ryan Armstrong , Peyman Mostaghimi

{"title":"Utilising micro-CT to analyse fluid dynamics in dual-porosity packing systems","authors":"Quan Zheng , Kunning Tang , Ying Da Wang , Samuel J. Jackson , Thomas Poulet , Ryan Armstrong , Peyman Mostaghimi","doi":"10.1016/j.hydromet.2025.106606","DOIUrl":"10.1016/j.hydromet.2025.106606","url":null,"abstract":"<div><div>This paper introduces a workflow for creating and analysing an engineered dual-porosity system, similar to those in copper heap leaching, by synthesising micro-porous chalcopyrite-glass beads. These beads are designed to match the size and shape of single-porosity glass beads. X-ray micro-CT imaging is utilised alongside mass balance measurements on comparative irrigation experiments in the dual and single-porosity systems to investigate the complex fluid dynamics governing the interaction between fluid flow in the micro-porous (intraparticle) and macroscopic (interparticle) domains. Results demonstrate that the dual porosity system, with 20% micro-porosity and 46% macro-porosity, retains over twice the liquid volume compared to the single porosity system, with the same macro-porosity and tortuosity. An increased macroscopic flow connectivity and liquid content is observed in the dual porosity system, due to lateral flow within the micro-pores that enhance surface area and connectivity at the bead contact points. A considerable amount of liquid is retained in the micro-pores through capillary forces, which impacts leaching performance in a large scale system. Overall, this imaging-based methodology and workflow provides a robust framework for designing and analysing engineered dual-porosity systems found in geosciences, chemical engineering, and hydrometallurgy, enabling improved prediction and optimisation of reactive transport and resource recovery processes in complex porous media.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106606"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145578569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of ultrasound technology for the inhibition of mineral scale formation in mixing tanks 利用超声波技术抑制混合槽中矿物结垢的形成

IF 4.8 2区材料科学

Hydrometallurgy Pub Date : 2026-02-01 Epub Date: 2025-11-28 DOI: 10.1016/j.hydromet.2025.106619

Joydip Mondal, Shen Long, Jie Wu

{"title":"The use of ultrasound technology for the inhibition of mineral scale formation in mixing tanks","authors":"Joydip Mondal, Shen Long, Jie Wu","doi":"10.1016/j.hydromet.2025.106619","DOIUrl":"10.1016/j.hydromet.2025.106619","url":null,"abstract":"<div><div>Gypsum scale formation is a major challenge in many unit operations within the minerals processing industry. Conventional techniques for removing such scales in mixing tanks are time-consuming, labour-intensive and potentially hazardous, highlighting the need for new inhibition strategies. An experimental study on the effect of ultrasound in inhibiting gypsum scale in mixing tanks at laboratory scale was conducted. A 2 L cylindrical tank, employing an unbaffled agitator system and ultrasonic transducer, was used to test the effect of varying sonication times (1 to 6 h per day), and power levels (3 to 4.25 W). Scale-mitigation parameters based on the area fraction of descaled surface, the total scale mass and scale thickness were proposed and assessed. Results revealed that intermittent application of ultrasound significantly reduces gypsum scale deposition, while the scale inhibition improved with an increase in sonication time and power. The most effective setup was found to be 6 h/day of ultrasound at 4.25 W, which achieved almost 97 % reduction in scale mass and thickness at the end of five days of scaling compared to cases without ultrasound. Acoustic analysis indicated that ultrasonic waves with multiple frequencies between 20 and 400 kHz, alongside cavitation and streaming flows, help inhibit scale formation on the tank surfaces.</div></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"240 ","pages":"Article 106619"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0