Siqin Zhu, Guohua Ye, Qi Zuo, Xuanxiong Kang, Yun Zhang, Xinyue Xiang, Yiyang Rong, Changxu Song
{"title":"Vanadium-bearing shale beneficiation pre-enrichment: Selective flotation separation of garnet and quartz in an acidic environment using a dodecylamine–sodium fluosilicate system","authors":"Siqin Zhu, Guohua Ye, Qi Zuo, Xuanxiong Kang, Yun Zhang, Xinyue Xiang, Yiyang Rong, Changxu Song","doi":"10.1016/j.mineng.2025.109244","DOIUrl":"10.1016/j.mineng.2025.109244","url":null,"abstract":"<div><div>Preconcentration of vanadium-bearing shale via the flotation separation of aluminosilicate minerals, such as garnet, from quartz is a promising approach to meet the growing demand for vanadium. However, several issues, including poor selectivity, must be addressed and the separation mechanism should be elucidated. In this study, a flotation system for selectively separating garnet from quartz under acidic conditions was developed. The use of dodecylamine as the collector and sodium fluorosilicate as the depressant yielded satisfactory technical performance. Additionally, the mechanism by which dodecylamine captures garnet and sodium fluorosilicate inhibits quartz was investigated through microflotation experiments, zeta potential measurements, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy (XPS). At pH 3 with 5.6 × 10<sup>−4</sup> mol/L dodecylamine and 8.4 × 10<sup>−4</sup> mol/L sodium fluorosilicate, microflotation experiments achieved a garnet recovery rate of 90.62 %, whereas that of quartz was only 0.6 %, resulting in effective separation of these minerals. As the pH of the slurry decreased, the zeta potential of quartz tended to become more positive, which hindered the adsorption of the collector, cationic dodecylamine, on the quartz surface. The XPS results indicated that at pH = 3, the binding of dodecylamine to the potential at the Fe2p<sub>1/2</sub> site of garnet was promoted, resulting in enhanced floatability of the garnet. Furthermore, sodium fluorosilicate competed with dodecylamine for the Si–OH groups on the surface of quartz, resulting in reduced floatability.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"226 ","pages":"Article 109244"},"PeriodicalIF":4.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591613","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}
Yuchao Qiu , Yongsheng Sun , Yuexin Han , Peng Gao
{"title":"Advanced strategies for the efficient utilization of refractory iron ores via magnetization roasting techniques: A comprehensive review","authors":"Yuchao Qiu , Yongsheng Sun , Yuexin Han , Peng Gao","doi":"10.1016/j.mineng.2025.109236","DOIUrl":"10.1016/j.mineng.2025.109236","url":null,"abstract":"<div><div>Efficient utilization of refractory iron ores is a critical component of the circular economy, essential for the sustainable development of the iron and steel industry. The magnetization roasting process has emerged as a research hotspot due to its energy-saving characteristics, and high efficiency. This paper comprehensively reviews the application of magnetization roasting for the efficient utilization of refractory iron ores and clarifies their mineralogical characteristics. The study further elucidates the thermodynamic foundations and kinetic reactions involved in magnetization roasting, detailing the mineral phase transformations that occur during the process. Additionally, it systematically summarizes conventional and novel magnetization roasting technologies, including shaft furnace roasting process, rotary kiln roasting process, suspension magnetization roasting process, microwave-assisted reduction roasting process, and biomass as a green reductant. The findings highlight the significant potential of magnetization roasting in improving the beneficiation of refractory iron ores, emphasizing its role in promoting sustainable industrial practices. Future research directions include optimizing process parameters, enhancing the understanding of reaction mechanisms, and scaling up the technology for industrial application.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109236"},"PeriodicalIF":4.9,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143547994","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}
Kunning Tang , Ying Da Wang , Peyman Mostaghimi , Yufu Niu , Ryan T. Armstrong , Yulai Zhang , Lachlan Deakin , Lydia Knuefing , Mark Knackstedt
{"title":"Bridging micro-to-nano scales for metal ore characterization via one-shot super-resolution","authors":"Kunning Tang , Ying Da Wang , Peyman Mostaghimi , Yufu Niu , Ryan T. Armstrong , Yulai Zhang , Lachlan Deakin , Lydia Knuefing , Mark Knackstedt","doi":"10.1016/j.mineng.2025.109219","DOIUrl":"10.1016/j.mineng.2025.109219","url":null,"abstract":"<div><div>The mineral composition, micro/nanostructure, and distribution of ore materials are commonly visualized, analyzed, and characterized using 2-dimensional (2D) scanning electron microscopy (SEM) and 3D X-ray micro-computed tomography (micro-CT). While SEM offers sufficient resolution for nano-scale feature characterization, it is limited to 2D structural and property insights. Micro-CT allows for 3D structural analysis, but its resolution is inadequate for capturing fine features. Additionally, tomography involves a trade-off between resolution and field of view (FOV). Practical scales often involve ore samples ranging from 10 mm to 80 mm in diameter, but acquiring fine-scale information (<span><math><mo><</mo></math></span>1 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span>) typically reduces the sample diameter to 2 mm. To address these gaps, a super-resolution technique is proposed that integrates micro-CT at practical scales with fine-scale data. The method uses a segmentation-guided one-shot super-resolution network to bridge 2D SEM (<span><math><mrow><mn>0</mn><mo>.</mo><mn>5</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>) and 3D micro-CT (<span><math><mrow><mn>6</mn><mo>.</mo><mn>9</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>) for four Fe-rich ore particles with varying mineralogy, texture, and porosity. Testing on unseen micro-CT sections shows an error of <span><math><mo><</mo></math></span>10% compared to SEM data. An algorithm is proposed to transform the 3D super-resolved images into coarsened partial volume maps that contain SEM scale information but retain the micro-CT length scale. Porosity calculated from the coarsened maps agrees with experimental measurements, differing by less than 1%. This proposed workflow effectively infers nanoscale information at the micro-CT scale, substantially enhancing ore characterization.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109219"},"PeriodicalIF":4.9,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548802","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}
Yiwen Hu , Jieliang Wang , Qizheng Qin , Zhao Cao , Wenda Lu , Jingyang Shi , Xu Wu , Peng Wang , Yongsheng Sun
{"title":"Enhancing the flotation of columbite via the synergistic effect of mixed collectors","authors":"Yiwen Hu , Jieliang Wang , Qizheng Qin , Zhao Cao , Wenda Lu , Jingyang Shi , Xu Wu , Peng Wang , Yongsheng Sun","doi":"10.1016/j.mineng.2025.109235","DOIUrl":"10.1016/j.mineng.2025.109235","url":null,"abstract":"<div><div>Columbite, a critical mineral for niobium extraction, achieving efficient collection of columbite in the flotation process remains a significant challenge. Based on the preliminary work, it was found that octyl hydroxamic acid (OHA) and sodium dodecyl sulfonate (SDS) were used as the mixed collector system, which could reduce the cost and improve the recovery of columbite. However, the synergistic adsorption mechanism of OHA/SDS in columbite flotation requires further investigation. Micro-flotation experiments indicate that the OHA/SDS mixed collector, compared to OHA or SDS used individually, significantly improves the flotation recovery of columbite, with an optimal molar ratio of OHA:SDS = 1:4. Adsorption experiments, zeta potential measurements, contact angle assessments, solution chemistry calculations, X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FTIR) analyses demonstrate that the mixed collector exhibits stronger adsorption affinity on the columbite surface compared to single collectors, revealing a distinct synergistic adsorption effect of OHA/SDS. Atomic force microscopy (AFM) tests reveal that the columbite surface treated with the mixed collector shows more distinct spot-like and layered adsorption features, confirming the synergistic adsorption of OHA/SDS on the columbite surface. Molecular dynamics (MD) simulations suggest that OHA molecules intercalate between SDS ions adsorbed on the columbite surface, effectively reducing electrostatic repulsion among SDS ions, thereby enhancing columbite flotation.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109235"},"PeriodicalIF":4.9,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511370","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}
Zhenqi Wang , Aixiang Wu , Shaoyong Wang , Yibo Zhao
{"title":"From performance to mechanism: Analysis of controlling strength attenuation of high-sulfur lead-zinc tailings cemented paste backfill","authors":"Zhenqi Wang , Aixiang Wu , Shaoyong Wang , Yibo Zhao","doi":"10.1016/j.mineng.2025.109233","DOIUrl":"10.1016/j.mineng.2025.109233","url":null,"abstract":"<div><div>The disposal of high-sulfur tailings severely impacts the environment. Preparing them into cemented paste backfill (CPB) and backfilling them into underground goafs is an environmentally friendly technology. However, the study on high-sulfur CPB performance and control mechanism is currently unclear, resulting in application limitations. This study comprehensively studies the rheological and mechanical properties, control methods, and environmental evaluation of high-sulfur CPB. The results indicate that the higher the sulfur content, the higher the shear yield stress and viscosity, and the better the flowability. However, the initial and final setting times are prolonged, and the strength shows a trend of increasing, decreasing, and increasing with the extension of curing time, indicating that the strength attenuation is obvious. By adding different inhibitors to high-sulfur CPB, it was found that naphthalene superplasticizer (FDN) has the best inhibitory effect on strength attenuation. The oxidation of pyrite, which produces SO<sub>4</sub><sup>2−</sup> and H<sup>+</sup>, is a key cause of strength attenuation. Different inhibitors boost strength mainly by curbing pyrite oxidation. They also enhance compactness by increasing the amounts of hydration products like calcium silicate hydrate (C-S-H), Ettringite (Et), and gypsum to fill pores. The strength control mechanism of the inhibitor mainly has two ways: to accelerate the formation of C-S-H and to promote the amount of Et. FDN in mitigating strength attenuation and achieving high immobilization rates for Pb<sup>2+</sup> (92.2 %) and Zn<sup>2+</sup> (98.9 %). This study has practical value for the environmental protection and utilization of CPB prepared from high-sulfur tailings, solving the problems of strength attenuation in high-sulfur CPB and providing new ideas for the treatment of high-sulfur tailings.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109233"},"PeriodicalIF":4.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511193","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}
Nasser Madani , Mohammad Maleki , Ayana Karakozhayeva
{"title":"Integrating soft data into geostatistical modeling of geometallurgical variables: Implications for modeling the copper oxide ratio in copper porphyry deposits","authors":"Nasser Madani , Mohammad Maleki , Ayana Karakozhayeva","doi":"10.1016/j.mineng.2025.109232","DOIUrl":"10.1016/j.mineng.2025.109232","url":null,"abstract":"<div><div>Geostatistical modeling involves continuous and categorical variables that are relevant in various earth science applications. While many studies have focused on modeling continuous variables such as ore and mineral grades with geological domains, the choice of modeling technique depends on the abruptness of the variation across these domains. In cases in which continuous variables display soft fluctuations across domains, a joint simulation approach is advocated. This approach leverages the spatial and local cross-correlations of continuous variables using categorical formations. However, patchy and unstructured categorical simulation outcomes may not accurately represent long-range geological settings. In the context of geometallurgical modeling, continuous variables represent geometallurgical parameters, while categorical variables signify geometallurgical domains, such as mineralization zones. The generation of patchy and unstructured geometallurgical domains remains a challenge when soft boundaries are present. Another challenge in geometallurgical parameter modeling relates to their non-additive nature, rendering block-support simulations through traditional block-kriging or block-simulation techniques ineffective. This study introduces an enhanced geostatistical modeling and co-simulation method aimed at co-simulating copper (Cu), copper oxide (CuO), and the copper oxide ratio (COR), which is strongly correlated with mineralization zones in copper porphyry deposits. The proposed method incorporates soft information from mineralization zones in the form of interpretive geological models and a change of variable technique to address the non-additive nature of the COR, which typically hinders block-support simulations, distinguishing it from CuO and Cu, which are additive variables. The methodology aims to provide a reliable framework for the spatial modeling of geometallurgical parameters, optimizing mineral processing plants and mine planning.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109232"},"PeriodicalIF":4.9,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487814","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}
Yusheng Tang , Lutong Ma , Zhesheng Qiu , Wanzhang Yang , Bensong Chen , Yan Lin
{"title":"Sustainable approaches for multidimensional disposal and applications of aluminum dross: A review","authors":"Yusheng Tang , Lutong Ma , Zhesheng Qiu , Wanzhang Yang , Bensong Chen , Yan Lin","doi":"10.1016/j.mineng.2025.109194","DOIUrl":"10.1016/j.mineng.2025.109194","url":null,"abstract":"<div><div>Aluminum dross (AD) represents a significant byproduct of the aluminum smelting process, characterized by its considerable content of elements such as Al, Si, N, and F, which imbue it with both substantial potential economic value and non-negligible environmental pollution risks. Consequently, the clean recovery and disposal of AD emerge as a pivotal challenge that the aluminum industry urgently needs to address. This paper delineates the origins of constituents within AD and their environmental ramifications. Furthermore, it thoroughly explores prevalent AD recuperation techniques while meticulously dissecting the detoxification mechanisms and technical nuances inherent to hydrometallurgical and pyrometallurgical approaches. Through resource recovery technology and the synergistic disposal of multiple hazardous wastes, strategies for AD disposal are systematically organized. Considering the characteristics of the aforementioned technologies, we have proposed a technique for the co-recovery of cryolite and aluminum fluoride synthesized from spent carbon anodes and AD. Finally, the challenges related to the recycling and utilization of AD were summarized and analyzed.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109194"},"PeriodicalIF":4.9,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487813","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}
Xin Fang , Caibin Wu , Ningning Liao , Jiuxiang Zhong , Riqian Liu , Ji Wu , Li Ling , Xuqian Duan
{"title":"Discrete element analysis of the influence of grinding media shape on the grinding process","authors":"Xin Fang , Caibin Wu , Ningning Liao , Jiuxiang Zhong , Riqian Liu , Ji Wu , Li Ling , Xuqian Duan","doi":"10.1016/j.mineng.2025.109222","DOIUrl":"10.1016/j.mineng.2025.109222","url":null,"abstract":"<div><div>The shape of the media significantly impacts the grinding process, but opacity (the black box issue) limits in-depth analysis of the mechanisms by which media shape affects grinding. This paper employs Discrete Element Method (DEM) simulations and batch grinding tests to systematically study the effects of different shaped grinding media on the grinding process. Based on changes in the motion behavior of particle assemblies, the lifting curves, dropping trajectories, and energy carrying differences of different media are analyzed. It is observed that spheres roll noticeably within the cylinder, while cylinders and hexagonal prisms, due to their increased contact surfaces, achieve higher lifting heights and speeds, and cover a broader range of motion. Additionally, spheres have higher rotational energy than cylinders and hexagonal prisms, but lower kinetic energy. Further analysis through contact models reveals differences in media and energy transfer. Although spheres make fewer contacts with the minerals, the contact energy is significant, overall greater than that of cylinders and hexagonal prisms. The latter make more frequent contact with minerals, resulting in a more uniform distribution of energy. Simulation results are validated through energy tests and analysis of grinding product particle size, and different media’s crushing energy models are constructed based on the JK model. The results indicate that as mineral particle size decreases, the advantages of steel cylpeb and hexagonal prisms gradually become apparent, and they exhibit good predictive performance.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109222"},"PeriodicalIF":4.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479592","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}
Hongxin Qiu , Bozeng Wu , Jianhua Chen , Xiaohao Sun , Mingzhen Hu
{"title":"Effect of the difference in adsorption of DL-2-amino-3-mercaptopropionic acid on the surfaces of jamesonite and pyrite on flotation separation","authors":"Hongxin Qiu , Bozeng Wu , Jianhua Chen , Xiaohao Sun , Mingzhen Hu","doi":"10.1016/j.mineng.2025.109220","DOIUrl":"10.1016/j.mineng.2025.109220","url":null,"abstract":"<div><div>Conventional flotations for separating jamesonite and pyrite employ cyanide as a pyrite flotation inhibitor, leading to significant environmental concerns. In this study, density functional theory calculations were utilized to investigate the differences in the adsorption of DL-2-amino-3-mercaptopropionic acid (DL) on jamesonite and pyrite surfaces. The potential of DL as a pyrite flotation inhibitor was assessed based on atomic coordination, spatial alignment, and orbital compatibility, which was subsequently corroborated by experimental data. Findings indicated that the Fe sites on the jamesonite surface were constrained by steric effects, rendering them challenging for inhibitor adsorption. Effective adsorption of flotation inhibitors on mineral surfaces necessitates meeting both spatial and orbital requirements. Although the Pb and Sb sites on the surface fulfilled the spatial criteria for inhibitor adsorption, strong adsorption was hindered by orbital mismatch. In contrast, pyrite satisfied the spatial criteria for inhibitor adsorption, where the t and e orbitals, derived from the Fe<sup>2+</sup> d orbital, formed σ-bonding and π-backbonding with DL. This was validated by pure mineral flotation and time-of-flight secondary-ion mass spectrometry. Results of this study considerably demonstrate the potential of DL, fulfilling both spatial and orbital requirements, as a promising pyrite flotation inhibitor for the flotation separation of jamesonite and pyrite.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109220"},"PeriodicalIF":4.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479591","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}
Ali Mohebbi, Amin Abolghasemi Mahani, Fatemeh Shafiizadeh
{"title":"Adsorption removal of Entrapped LIX 984N from acidic copper sulfate electrolyte using Nano-Porous silica aerogel","authors":"Ali Mohebbi, Amin Abolghasemi Mahani, Fatemeh Shafiizadeh","doi":"10.1016/j.mineng.2025.109211","DOIUrl":"10.1016/j.mineng.2025.109211","url":null,"abstract":"<div><div>Entrapment of organic solvents in the aqueous phase is the main drawback of hydrometallurgical extraction of copper, which leads to lower quality of the produced cathodes in the electrowinning (EW) process. To address this challenge, a synthesized hydrophobic nano-porous silica aerogel was utilized to selectively eliminate the organic solvent in the ppm range, namely commercial LIX984N (a mixture of 5-nonyl salicylaldoxime (C<sub>16</sub>H<sub>25</sub>NO<sub>2</sub>) and 2-hydroxy-5-nonyl acetophenone (C<sub>14</sub>H<sub>13</sub>NO<sub>2</sub>) at the same volume, which is diluted in kerosene) from the acidic copper sulfate electrolyte. The effects of adsorbent characteristics and process parameters on the adsorption performance of the organic solvent were investigated and discussed in detail. The optimum conditions of the adsorption process were also identified using the response surface methodology (RSM) based on central composite design (CCD). ANOVA analysis revealed a linear-quadratic model for organic solvent elimination, with significant adsorption factors including contact time, initial organic solvent concentration, and sol pH. A second-order model was proposed to predict the adsorption behavior of organic solvent using silica aerogel, and the optimized process parameters, including contact time, sol pH, and initial concentration of adsorbate, were obtained 120 min, pH = 4, and 20 ppm, respectively. The efficiency of organic solvent removal using the synthesized hydrophobic nano-porous silica aerogel was obtained by about 90 %.</div></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":"225 ","pages":"Article 109211"},"PeriodicalIF":4.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464700","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}