Minerals Engineering最新文献

Feasibility of using tap water instead of deionized water in the high-voltage pulse breakage process of magnetite quartzite 磁铁矿石英岩高压脉冲破碎过程中以自来水代替去离子水的可行性

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-06-01 Epub Date: 2026-02-02 DOI: 10.1016/j.mineng.2026.110126

Bo Zhang , Peng Gao , Shuai Yuan , Yanjun Li , Honghao Zhang

{"title":"Feasibility of using tap water instead of deionized water in the high-voltage pulse breakage process of magnetite quartzite","authors":"Bo Zhang , Peng Gao , Shuai Yuan , Yanjun Li , Honghao Zhang","doi":"10.1016/j.mineng.2026.110126","DOIUrl":"10.1016/j.mineng.2026.110126","url":null,"abstract":"<div><div>During the high-voltage pulse (HVP) crushing of ore, the liquid itself acts as an insulator. In previous studies, deionized water has been widely used as the working liquid. Compared to deionized water, tap water is cheaper and more readily available. This paper analyzes the feasibility of using tap water as a substitute for deionized water. The results of the tests confirm that tap water slightly reduces the crushing efficiency of HVP. The paired-particle test results indicate that the selective breakage probability of HVP in tap water is approximately 85–90%. SEM-EDS indicates that the HVP products in both tap water and deionized water exhibited similar microstructures. In tap water, the HVP fragmentation also exhibits a pronounced particle size enrichment effect. In the −3 mm particle size fraction, compared to mechanical crushing, the iron distribution rate of HVP products in tap water and deionized water increased by 8.1 and 13.37 percentage points, respectively. In addition, numerical simulation results of the quasi-static electric field revealed that an increase in the electrical conductivity of the water reduces the electric field strength within the ore particles. Compared to deionized water, the maximum electric field strength within the mineral particles in tap water decreases by approximately 18.65% at a voltage of 80 kV.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"240 ","pages":"Article 110126"},"PeriodicalIF":5.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146096029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crushing operation from a mineralogical class perspective: insights from comminution parameters, crusher performance, and liner wear 从矿物学角度的破碎操作：从粉碎参数，破碎机性能和衬套磨损的见解

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-27 DOI: 10.1016/j.mineng.2026.110100

O. Altun , D. Altun , N.A. Toprak , C.V. Tipici , Z. Dağtarla , E. Savaş

{"title":"Crushing operation from a mineralogical class perspective: insights from comminution parameters, crusher performance, and liner wear","authors":"O. Altun , D. Altun , N.A. Toprak , C.V. Tipici , Z. Dağtarla , E. Savaş","doi":"10.1016/j.mineng.2026.110100","DOIUrl":"10.1016/j.mineng.2026.110100","url":null,"abstract":"<div><div>This research investigates the link between the mineralogical composition of rock types and their response during jaw crushing. The study focuses on the effects of mineralogy on comminution parameters, crushing performance, and jaw liner wear. Six representative rock and ore types—gold, lead–zinc, polymetallic, basalt, limestone, and dolomite—were characterized through a comprehensive testing program, including the drop-weight test (DW, A × b parameter), Los Angeles abrasion (L.A.), Bond crushability work index (B<sub>CWi</sub>), Bond abrasion index (A<sub>i</sub>), and point load test (PLT). Internal relationships between these comminution parameters were established, and regression models were developed to relate each parameter to the mineralogical compositions of the samples. Pilot-scale jaw crusher experiments were then conducted under varied feed size distributions and closed-side settings (CSS) to evaluate crushing responses and measure plate wear as functions of mineralogical composition. In addition, metal composition trials were carried out on the jaw plates to assess how different alloy contents influenced the wear mechanism and to identify the most durable configuration. The pilot test results were further analyzed through Kick’s law, linking the Kick constant (C<sub>k</sub>) to the comminution parameters. Overall, the study demonstrates how mineralogical and metallic characteristics jointly govern size reduction and wear mechanisms, offering a practical framework for predicting crusher performance and supporting operational (OPEX) and capital (CAPEX) optimization in industrial comminution systems.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110100"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in phosphate ores flotation: Cleaning reagents, green practices and perspectives 磷矿浮选研究进展：清洁药剂、绿色实践与展望

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-29 DOI: 10.1016/j.mineng.2026.110120

Liuyang Dong , Yanru Cui , Shengzong Lan , Tianfu Zhang , Yuqiang Mao , Peilun Shen , Dianwen Liu

{"title":"Advances in phosphate ores flotation: Cleaning reagents, green practices and perspectives","authors":"Liuyang Dong , Yanru Cui , Shengzong Lan , Tianfu Zhang , Yuqiang Mao , Peilun Shen , Dianwen Liu","doi":"10.1016/j.mineng.2026.110120","DOIUrl":"10.1016/j.mineng.2026.110120","url":null,"abstract":"<div><div>Apatite, a vital calcium-bearing mineral, presents significant challenges in separation due to its complex mineralogy and frequent intergrowth with gangue minerals such as calcite and dolomite. Given that the physical and chemical properties of these associated calcium-bearing mineral impurities are highly similar to those of apatite, the flotation behaviors of the two also exhibit significant convergence. Therefore, traditional separation techniques are difficult to achieve efficient separation of apatite from the calcium-bearing impurities. The difficulties are further compounded by several factors: the analogous surface characteristics between apatite and common gangue minerals lead to poor selectivity of conventional reagents, adversely affecting concentrate quality; the finely disseminated nature of the minerals often results in either inadequate liberation or overgrinding during milling, increasing separation complexity and reducing efficiency; and the mineral’s high chemical reactivity in aqueous environments—where dissolution, hydrolysis, and varying surface composition occur—along with interference from dissolved ions, complicates reagent adsorption and process control. This review paper examines the resource characteristics, physicochemical properties, beneficiation methods, and flotation reagents of phosphate ores, supported by representative case studies. With a focus on elucidating the mechanisms of selective depressants in apatite flotation. This work aims to provide a scientific basis for the efficient and sustainable utilization of phosphate resources, offering insights for future development and enhanced flotation performance to achieve cleaner and more effective phosphate beneficiation.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110120"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early-stage temperature-dependent leaching kinetics and mechanisms of saprolitic and limonitic nickel laterite ores under atmospheric conditions 大气条件下腐殖岩型和褐铁矿型镍红土矿早期温度依赖性浸出动力学及机制

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-29 DOI: 10.1016/j.mineng.2026.110115

Heewon Kang, Jeongwoo Kim, Jaehoon Lee, Dagyeong Lee, Daniel Ko, Hyunjung Kim

{"title":"Early-stage temperature-dependent leaching kinetics and mechanisms of saprolitic and limonitic nickel laterite ores under atmospheric conditions","authors":"Heewon Kang, Jeongwoo Kim, Jaehoon Lee, Dagyeong Lee, Daniel Ko, Hyunjung Kim","doi":"10.1016/j.mineng.2026.110115","DOIUrl":"10.1016/j.mineng.2026.110115","url":null,"abstract":"<div><div>This study investigates the early-stage leaching behavior and temperature-dependent kinetics of saprolitic laterite (SL) and limonitic laterite (LL) ores under atmospheric acid leaching conditions at various temperatures to capture early-stage dissolution of nickel, magnesium, and iron. Both ores exhibited temperature-dependent increases in metal extraction, with highest extractions observed at 45 °C for saprolitic laterite ore and 65 °C for limonitic laterite ore. Structural analysis of leach residues revealed that the highest extractions corresponded to progressive collapse of key minerals—lizardite in saprolitic laterite ore and goethite and clinochlore in limonitic laterite ore. Kinetic analysis using a shrinking core model showed that solid product layer diffusion was the dominant rate-limiting step for all metals in both ores. Activation energies exceeding 56 kJ/mol for all metals suggested diffusion resistances, likely due to the formation of silica-rich product layers. This study clarifies the mineral leach mechanisms governing early-stage leaching in saprolitic laterite and limonitic laterite ores and provide a basis for optimizing selective nickel leaching.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110115"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flotation of copper mineral fines and aggregates using novel bio-inspired Vitamin E xanthate collectors 利用新型仿生维生素E黄药捕收剂浮选铜矿细粒和聚集体

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.mineng.2026.110103

Regina B.D. de Medeiros , Wei Sung Ng , Tina Hsia , San H. Thang , George V. Franks

{"title":"Flotation of copper mineral fines and aggregates using novel bio-inspired Vitamin E xanthate collectors","authors":"Regina B.D. de Medeiros , Wei Sung Ng , Tina Hsia , San H. Thang , George V. Franks","doi":"10.1016/j.mineng.2026.110103","DOIUrl":"10.1016/j.mineng.2026.110103","url":null,"abstract":"<div><div>This paper investigates the use of novel bio-based collectors D-α-tocopherol polyethylene glycol 400 succinate xanthate (TPGS-X) and α-tocopherol ethyl xanthate (VitE-X) in the flotation of chalcopyrite fine particles and aggregates, as an alternative replacement for conventional xanthate collectors. Potassium amyl xanthate (PAX) was used as a conventional collector for comparison. Commercial anionic polyacrylamide (APAM) flocculants were applied to selectively aggregate the fines with the aim of improving recovery via the formation of larger aggregates. The performance of all collectors was evaluated through the flotation recovery and grade of both the fines and aggregated particles. Contact angle tests were also performed to analyse the effect of the reagents on the hydrophobicity of the chalcopyrite surface. The experimental results showed that TPGS-X provided the best chalcopyrite recovery and grade amongst all collectors, followed by VitE-X, although quartz was also recovered via entrainment. PAX addition improved the grade of the concentrates but did not significantly affect the recovery of the valuable particles. Increasing TPGS-X dosage enhanced chalcopyrite grade from ∼ 43 % to 54 % and recovery from ∼ 48 % up to 82 %. The addition of APAM for fines aggregation was also found to reduce chalcopyrite flotation recovery and grade due to entrapment effects. Contact angle experiments demonstrated that all collectors increased the hydrophobicity of the chalcopyrite surface, but treatment with APAM reduced the effectiveness of the collectors. This potentially suggests that the surface hydrophobicity has a more dominant effect on the flotation efficiency than the aggregate size for the chalcopyrite-quartz system. Finally, both novel TPGS-X and VitE-X were found to be able to improve the flotation of fine particles, but the flotation of aggregates remains challenging for the investigated system.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110103"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of CMC and MBS on the separation of chalcopyrite and galena in seawater CMC和MBS对海水中黄铜矿和方铅矿分离的影响

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-27 DOI: 10.1016/j.mineng.2026.110112

Wanqing Li , Yubiao Li , Jialong Zhao , Zhonghong Wang , Wen Chen

{"title":"Effect of CMC and MBS on the separation of chalcopyrite and galena in seawater","authors":"Wanqing Li , Yubiao Li , Jialong Zhao , Zhonghong Wang , Wen Chen","doi":"10.1016/j.mineng.2026.110112","DOIUrl":"10.1016/j.mineng.2026.110112","url":null,"abstract":"<div><div>The separation of chalcopyrite from galena attracts much attention during the flotation process due to their similar floatability, especially in seawater. This study systematically investigated the effects of carboxymethyl cellulose (CMC) and sodium metabisulfite (MBS) on the Cu-Pb flotation separation in seawater. Flotation results indicated that the galvanic interaction between chalcopyrite and galena decreased the recoveries of chalcopyrite and galena by 2 ∼ 6 % and 6 ∼ 12 %, respectively. Further addition of combined depressant including CMC and MBS resulted in a non-floatable galena but affected chalcopyrite flotation lightly, showing the highest selectivity index of 19.11. Metal ion releasing evolution and X-ray Photoelectron Spectroscopy (XPS) results demonstrated that galvanic interaction enhanced the oxidation of galena surface where the adsorption of CMC and MBS was strengthened, forming hydrophilic species and a tight water film, thereby inhibiting the flotation of galena. Differently, CMC and MBS influenced chalcopyrite surface slightly. Further electrochemical investigation confirmed that the electrochemical reactivity on galena surface was reduced significantly due to the introduced depressants, preventing the reaction between the active sites on galena surface and IPTEC molecules. In contrast, the depressant-treated chalcopyrite surface remained at a relatively high electrochemical reactivity, which was beneficial to the adsorption of IPTEC on chalcopyrite surface to form an uneven hydrophobic film. This study therefore provides a promising orientation by adding CMC and MBS to achieve the efficient and environmental flotation separation of chalcopyrite and galena in seawater system.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110112"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gaussian process modelling of an industrial flotation bank 工业浮选库的高斯过程建模

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-16 DOI: 10.1016/j.mineng.2026.110086

Johan Lindqvist , Khalid Atta , J. Derik le Roux , Andreas Johansson

引用次数: 0

Carboxyl-functionalized polystyrene nanoparticles as flotation collectors for siliceous phosphorite 羧基功能化聚苯乙烯纳米颗粒作为硅质磷矿浮选捕收剂

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-16 DOI: 10.1016/j.mineng.2026.110082

S. Al-Thyabat , H. Al-Zoubi , B. Albiss

{"title":"Carboxyl-functionalized polystyrene nanoparticles as flotation collectors for siliceous phosphorite","authors":"S. Al-Thyabat , H. Al-Zoubi , B. Albiss","doi":"10.1016/j.mineng.2026.110082","DOIUrl":"10.1016/j.mineng.2026.110082","url":null,"abstract":"<div><div>Phosphorite is a non-renewable source of elemental phosphorus, an indispensable constituent of phosphate-based fertilizers. For low grade phosphorite ores, froth flotation is the most widely used upgrading technique. However, flotation collectors’ low performance and deteriorating selectivity in the presence of fine phosphorite increased interest in new types of nanoparticles −based collectors.</div><div>Carboxyl-functionalized polystyrene nanoparticles (FPSNPs) were synthesized by emulsion polymerization and evaluated as a replacement for the traditional sodium oleate (NaOL) collector. Nanoparticles characterization, adsorption isotherms, and flotation performance were evaluated by SEM, dynamic light scattering (DLS), FT-IR, and Uv–vis spectroscopy. Four adsorption isothermal models were used to compare the adsorption of FPSNPs and NaOL collector on phosphorite particle surface.</div><div>It was found that FPSNPs were positively charged with average size of 29 nm. Both FPSNPs and NaOL were physically adsorbed on phosphorite surface as a multilayer by either electrostatic interaction or precipitation. However, the maximum adsorption density of FPSNPs was higher than NaOL, indicating thicker layer of FPSNPs collector. This may be due to stronger interaction (i.e. more selectivity) between FPSNPs and Ca<sup>+2</sup> sites on both of phosphorite surface and those dissolved in the flotation pulp. On the other hand, flotation results showed that silica removal by FPSNPs was about 80 % compared with 58 % with NaOL., while the concentrate grade was 32.7 % P<sub>2</sub>O<sub>5</sub> when 2010 g/tonne of FPSNPs collector was used. These findings contribute to our understanding of the mechanisms of nanoparticles −based collectors which facilitate the development of more efficient and environmentally friendly phosphorite collectors.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110082"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inhibition effect on swelling and permeability enhancement of potassium benzoate in ion adsorption rare earth ore elution 苯甲酸钾离子吸附稀土矿洗脱中溶胀增透的抑制作用

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-24 DOI: 10.1016/j.mineng.2026.110106

Ziqi Jin , Yuanlai Xu , Ziqi Wang , Shimin Hu , Junhao Pan , Pei Zhao , Ru'an Chi

{"title":"Inhibition effect on swelling and permeability enhancement of potassium benzoate in ion adsorption rare earth ore elution","authors":"Ziqi Jin , Yuanlai Xu , Ziqi Wang , Shimin Hu , Junhao Pan , Pei Zhao , Ru'an Chi","doi":"10.1016/j.mineng.2026.110106","DOIUrl":"10.1016/j.mineng.2026.110106","url":null,"abstract":"<div><div>Contrast to the general rare earth ores from Jiangxi province, rare earth ores from Hunan province exhibit unique clay compositions, such as higher halloysite and kaolinite content, leading to the stronger swelling and different leaching behavior compared to Jiangxi ores. To promote the green and efficient exploitation of ion-adsorption rare earth ores, potassium benzoate (C<sub>6</sub>H<sub>5</sub>COOK) was chosen as a novel swelling inhibitor adding to MgSO<sub>4</sub> leaching solution to investigate its dual role in suppressing clay swelling and enhancing permeability in this study.</div><div>Swelling tests, mud ball disintegration, sedimentation, and column leaching experiments were conducted to evaluate its effects on the structural stability and permeability of kaolinite, halloysite and rare earth ores, respectively. Experimental results showed that potassium benzoate significantly inhibited clay swelling during 72 h tested time and improved solution percolation between particles. The swelling rate decreased from 6.401% to 2.251%, corresponding to an inhibition rate of 64.83%, and a rare earth leaching recovery of 97.60% were achieved, demonstrating well performance in both structural stabilization and extraction efficiency.</div><div>From fourier transform infrared spectroscopy (FTIR) and thermogravimetric (TG) mechanism analysis, potassium ions from potassium benzoate replaced interlayer cations via ion exchange, weakening the hydration film and suppressing interlayer expansion. Meanwhile, benzoate anions adsorbed onto mineral surfaces, forming a hydrophobic layer that stabilized the structure and promoted infiltration.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"239 ","pages":"Article 110106"},"PeriodicalIF":5.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanistic insights into the hydrogen-based phase transformation processes of iron-bearing manganese ores 含铁锰矿氢基相变过程的机理研究

IF 5 2区工程技术

Minerals Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.mineng.2026.110083

Ruofeng Wang , Shuai Yuan , Jiangang Ku , Qinglong Fan , Yanjun Li

引用次数: 0