Physicochemical Problems of Mineral Processing最新文献

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Grindability characterization and work index determination of alluvial ferro-columbite deposits for efficient mineral processing 冲积型柱状铁矿床可磨性表征及高效选矿工作指标测定
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-08-06 DOI: 10.37190/ppmp/170297
N. Nzeh, A. Adeleke, P. Popoola
{"title":"Grindability characterization and work index determination of alluvial ferro-columbite deposits for efficient mineral processing","authors":"N. Nzeh, A. Adeleke, P. Popoola","doi":"10.37190/ppmp/170297","DOIUrl":"https://doi.org/10.37190/ppmp/170297","url":null,"abstract":"This study emphasizes on the physicochemical and grindability characteristics and work index of an alluvial formed silica dominated ferro-columbite mineral from Rayfield-Jos minefields in Plateau state, Nigeria. Investigations were also carried out in order to determine the mineralogy of the mineral deposits and most essentially the actual energy consumed during comminution and milling of the mineral so as to achieve the liberation size prior to high efficient mineral processing or beneficiation and the extraction of value metals. The distribution of the mineral particles as well as their sizes was determined, with a mineral liberation size fraction range essentially established as -150+90 µm particle sizes. Mass percentage of each size fraction obtained from PSD analysis conducted before and after comminution was also determined, obtaining 80% passing for both the mineral feeds and comminuted products. Berry and Bruce modified Bond’s work index was therefore obtained, and was determined to be within the range of 2.0414 to 2.5667 kWh/ton. Hence, the energy consumed or required to comminute or grind the Fe-columbite mineral to 80% passing is expected to fall within the range of 0.3613 to 0.4543 kWh. Thus, it could be said that a low milling work index as well as moderately low energy is required for comminution and this can be attributed to the mineralogy, mineral source and alluvial formation of the mineral reserve. Therefore, the grindability/PSD result of the mineral sample indicates that its mineralogy is considered a class of moderately soft mineral type in terms of texture with easy grindability.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44366828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Optimization of CNTs and SiO2 for thermostability and mechanical properties of PF microcapsules: used for self-healing of closed wall cracks in goaf CNTs和SiO2对PF微胶囊热稳定性和力学性能的优化:用于采空区闭合壁裂纹的自修复
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-08-01 DOI: 10.37190/ppmp/170020
M. Fu, Boyu Ma, Yuanping Zhang, Xin-lei Jia, Lu Chen, Yuping Zhang, Kaidi Sun, Guanning Zhao, Mengyao Wang
{"title":"Optimization of CNTs and SiO2 for thermostability and mechanical properties of PF microcapsules: used for self-healing of closed wall cracks in goaf","authors":"M. Fu, Boyu Ma, Yuanping Zhang, Xin-lei Jia, Lu Chen, Yuping Zhang, Kaidi Sun, Guanning Zhao, Mengyao Wang","doi":"10.37190/ppmp/170020","DOIUrl":"https://doi.org/10.37190/ppmp/170020","url":null,"abstract":"Air leakage of closed wall in coal mine goaf would cause spontaneous combustion of remained coal. Most of measures to repair cracks are carried out after cracks are penetrated, which is not conducive to early prevention of spontaneous combustion. Repairing damage at the initial stage of cracking makes prevention effect to the best. Phenol-formaldehyde resin (PF) microcapsules embedded in closed wall to achieve self-healing of initial cracks, but the actual repair effect is often less than expected. PF microcapsules (PFM) of carbon nanotubes (CNTs) and silicon dioxide (SiO2) decorated shell for self-healing of closed wall cracks were prepared by in-situ polymerization. The effects of nanomaterials on morphology, chemical constitution, thermal performance and mechanical properties of PF microcapsules were characterized by scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and nanoindentation test. The test results indicated that nanomaterials were successfully introduced into the shell of PF microcapsules. The CNTs-SiO2@PF microcapsules were uniformly dispersed, the thermal decomposition was delayed, and the residual carbon was significantly increased, and the brittleness of PF microcapsules was significantly enhanced. The 0.2CNTs-SiO2@PF microcapsules (0.2CNTs-SiO2@PFM) had a uniform and full particle size, the initial decomposition temperature was 267.6 ℃, the residual mass was 41.3%, the maximum load on the capsule wall reached 94.79 mN, and the load dropped sharply after the capsule wall rupture. Finally, the self-healing mechanism of closed wall doped with microcapsules was discussed. The exploration of modified phenolic microcapsules provides a new idea for the repair of closed wall in goaf.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45675709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Adsorption of 4-aminopyrimidine at the R-AgLAFE/chlorate(VII) interface. Comparison of the adsorption properties of various water activity as well as different surfactants 4-氨基嘧啶在R-AgLAFE/氯酸盐界面上的吸附比较不同水活度及不同表面活性剂的吸附性能
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-08-01 DOI: 10.37190/ppmp/170204
M. Martyna, Alicja Pawlak, M. Grochowski, A. Bazan-Woźniak, R. Pietrzak, A. Nosal-Wiercińska
{"title":"Adsorption of 4-aminopyrimidine at the R-AgLAFE/chlorate(VII) interface. Comparison of the adsorption properties of various water activity as well as different surfactants","authors":"M. Martyna, Alicja Pawlak, M. Grochowski, A. Bazan-Woźniak, R. Pietrzak, A. Nosal-Wiercińska","doi":"10.37190/ppmp/170204","DOIUrl":"https://doi.org/10.37190/ppmp/170204","url":null,"abstract":"The results of 4-aminopyrimidine (4-APM) impact studies on the double layer parameters at the R-AgLAFE/ chlorates(VII) interface in the solutions with different water activity as well as different properties of the mixed adsorption layer of 4-aminopirimidine – sodium 1-decanesulfonate (SDS) and 4- aminopyrimidine - hexadecyltrimethylammonium bromide (CTAB) at the electrode/solution interface are discussed.The differential capacity of the double layer (Cd) at the R-AgLAFE/ basic solution interface was measured using the electrochemical impedance spectroscopy. The zero charge potential (Ez) was determined using a streaming electrode, while the surface tension at the zero charge potential (Yz) was measured using the largest pressure method inside the mercury drop. It was proved that both the 4-aminopirymidine concentration and water activity have an essential effect on the doublelayer parameters on the R-AgLAFE/ chlorates(VII) interface. In the studied systems: 4-APM - SDS and 4-APM - CTAB, 4-aminopyrimidine dominance was observed.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41914379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A flotation combined extraction process for improving the whiteness of phosphogypsum 一种提高磷石膏白度的浮选联合萃取工艺
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-08-01 DOI: 10.37190/ppmp/170043
Jiangli Li, Yongjie Guo, Peiqiang Fan, Haibin Li, C. Chen, Shuai Xu, Lin Du
{"title":"A flotation combined extraction process for improving the whiteness of phosphogypsum","authors":"Jiangli Li, Yongjie Guo, Peiqiang Fan, Haibin Li, C. Chen, Shuai Xu, Lin Du","doi":"10.37190/ppmp/170043","DOIUrl":"https://doi.org/10.37190/ppmp/170043","url":null,"abstract":"Every year, the production of industrial phosphoric acid generates more than 100 Tg of phosphogypsum (PG), leading to significant environmental damage and the occupation of a vast amount of land space. The urgent need to explore applications for PG has become increasingly apparent. However, impurities such as organic substances, slime, phosphorite, and SiO2 reduce the whiteness of PG, making it difficult to utilize for high-value applications. To address this issue, this study employed a two-stage flotation process to remove the majority of impurities, including SiO2, organic substances, and fine slime adhered to the surface of PG particles. The raw PG sample was first sieved to remove some SiO2 particles. After flotation, sulfuric acid and tributyl phosphate were introduced to decompose the PG particles and remove the impurities wrapped inside. Following this flotation combined extraction process, the whiteness of the PG sample improved from 54.1% to 92.9%, meeting the requirements for building walls and filters.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45727167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Research on the mill feeding system of an elastic variable universe fuzzy control based on particle swarm optimization algorithm 基于粒子群优化算法的弹性变域模糊控制磨机给料系统研究
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-07-26 DOI: 10.37190/ppmp/169942
N. Tian, Songwei Huang, Li fang He, Ling pan Du, S. Yang, Bin Huang
{"title":"Research on the mill feeding system of an elastic variable universe fuzzy control based on particle swarm optimization algorithm","authors":"N. Tian, Songwei Huang, Li fang He, Ling pan Du, S. Yang, Bin Huang","doi":"10.37190/ppmp/169942","DOIUrl":"https://doi.org/10.37190/ppmp/169942","url":null,"abstract":"The grinding process in the concentrator is a part of the largest energy consumption, but also the most likely to cause a waste of resources, so the optimization of the grinding process is a very important link. The traditional fuzzy controller relies solely on the expert knowledge summary to construct control rules, which can cause significant steady-state errors in the model. In order to solve the above problem, this paper proposes an elastic variable universe fuzzy control based on Particle Swarm Optimization (PSO) algorithm. The elastic universe fuzzy control model does not need precise fuzzy rules, but only needs to input the general trend of the rules, and the division of the universe is performed by the contraction-expansion factor. The control performance is directly related to the contraction-expansion factor, so this article also proposes using particle swarm optimization to optimize the scaling factor to achieve the optimal value. Finally, simulation models of traditional fuzzy control and elastic universe fuzzy control of feeding system of mill were built using Python to verify the control effect. Its simulation results show that the time of the reaction of the fuzzy control system in the elastic variable theory universe based on particle swarm optimization was shorter by 34.48% comparing to the traditional one. Elastic variable universe fuzzy control based on particle swarm optimization (PSO) effectively improved the control accuracy of the mill feeding system and improved the response speed of the system to a certain extent.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41506198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Developing a data-driven soft sensor to predict silicate impurity in iron ore flotation concentrate 开发数据驱动的软传感器预测铁矿石浮选精矿中硅酸盐杂质
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-07-26 DOI: 10.37190/ppmp/169823
Y. Pural
{"title":"Developing a data-driven soft sensor to predict silicate impurity in iron ore flotation concentrate","authors":"Y. Pural","doi":"10.37190/ppmp/169823","DOIUrl":"https://doi.org/10.37190/ppmp/169823","url":null,"abstract":"Soft sensors are mathematical models that estimate the value of a process variable that is difficult or expensive to measure directly. They can be based on first principle models, data-based models, or a combination of both. These models are increasingly used in mineral processing to estimate and optimize important performance parameters such as mill load, mineral grades, and particle size. This study investigates the development of a data-driven soft sensor to predict the silicate content in iron ore reverse flotation concentrate, a crucial indicator of plant performance. The proposed soft sensor model employs a dataset obtained from Kaggle, which includes measurements of iron and silicate content in the feed to the plant, reagent dosages, weight and pH of pulp, as well as the amount of air and froth levels in the flotation units. To reduce the dimensionality of the dataset, Principal Component Analysis, an unsupervised machine learning method, was applied. The soft sensor model was developed using three machine learning algorithms, namely, Ridge Regression, Multi-Layer Perceptron, and Random Forest. The Random Forest model, created with non-reduced data, demonstrated superior performance, with an R-squared value of 96.5% and a mean absolute error of 0.089. The results suggest that the proposed soft sensor model can accurately predict the silicate content in the iron ore flotation concentrate using machine learning algorithms. Moreover, the study highlights the importance of selecting appropriate algorithms for soft sensor developments in mineral processing plants.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49398120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Activated biocarbons obtained from lignocellulosic precursors as potential adsorbents of ammonia 从木质纤维素前体中获得的活性生物炭作为氨的潜在吸附剂
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-07-26 DOI: 10.37190/ppmp/169835
K. Jedynak, B. Charmas
{"title":"Activated biocarbons obtained from lignocellulosic precursors as potential adsorbents of ammonia","authors":"K. Jedynak, B. Charmas","doi":"10.37190/ppmp/169835","DOIUrl":"https://doi.org/10.37190/ppmp/169835","url":null,"abstract":"The investigated materials were new biocarbons: FC (Fir Cone), FS (Fir Sawdust), FB (Fir Bark), BS (Birch Sawdust), BB (Birch Bark), AS (Acacia Sawdust), AB (Acacia Bark), OS (Oak Sawdust), OB (Oak Bark), HS (Hornbeam Sawdust)) obtained via pyrolysis and CO2 activation of wood waste (lignocellulosic biomass). In order to study the influence of the carbon precursor on the physicochemical properties of biocarbons there were used the precursors: cones, sawdust, and bark of various tree species. The obtained adsorbents were characterized based on the results, of the N2 adsorption, scanning electron microscopy (SEM), elemental analysis (CHNS), thermogravimetry (TG), derivative thermogravimetry (DTG), and differential thermal analysis (DTA), Fourier Transform Infrared Spectroscopy FT-IR (ATR) and the Boehm’s titration method as well as pHpzc (the point of zero charge). The adsorption capacity and the temperature-programmed desorption (TPD) of ammonia were also studied. The obtained activated biocarbons were characterized by the large specific surface area (515 to 1286 m2/g) and the total pore volume (0.27 to 0.46 cm3/g) as well as the well-developed microporous structure (76 - 90%). The maximum NH3 adsorption capacity of the activated biocarbon was determined to be 2.93 mmol/g (FC (Fir Cone)). These results prove that the lignocellulosic precursors are appropriate for preparation of environmentally friendly and cost-effective biocarbons.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44786313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Conversion of cleaned Oltu-stone wastes (a semi-precious stone) into a valuable product using binderless agglomeration 利用无粘结剂凝聚将清洗后的奥图石废料(半宝石)转化为有价值的产品
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-07-18 DOI: 10.37190/ppmp/169730
Muhammad Raheel Bawani, A. Arol, G. Tozsin, A. Torun
{"title":"Conversion of cleaned Oltu-stone wastes (a semi-precious stone) into a valuable product using binderless agglomeration","authors":"Muhammad Raheel Bawani, A. Arol, G. Tozsin, A. Torun","doi":"10.37190/ppmp/169730","DOIUrl":"https://doi.org/10.37190/ppmp/169730","url":null,"abstract":"Oltu-stone, a semi-precious stone found in Erzurum's Oltu area, is commonly utilized in the creation of decorative ornaments. More than 90% of the Oltu-stone mined is classified as Oltu-stone waste, consisting of poor Oltu-stone due to mineral impurities and small fragment sizes (OW). This waste is thrown or burnt, resulting in financial losses. Such losses might be reduced by using Oltu-stone waste (OW) instead of standard Oltu-stone (SO). The purpose of this study was to convert Oltu-stone waste into a useful pressed product. It was cleaned using the float-sink method with a density of 1.25 g.cm-3 and then utilized for binderless high-pressure agglomeration to create pressed Oltu-stone. The physical, mechanical, microscopic, and spectroscopic characteristics of the material were investigated. The bulk density of pressed Oltu-stone was reported to be 1.22-1.26 g.cm-3. However, with the same pressing time, indirect tensile strength was identical and varied when the pressing time was changed. The surface morphology of the crushed Oltu-stone revealed that it was more intact and had a less porous structure. Oltu-stone includes a lot of volatile matter and aliphatic carbon structures because of its high liptinite content. An FTIR investigation revealed that altering the pressing time affects the chemical structure but not the pressure. This effect was seen in molecules containing oxygen, namely conjugated carbonyl and carboxylic groups. It was discovered that pressed Oltu-stone has nearly identical properties to standard Oltu-stone and could be produced on a large scale commercially.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41786712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Investigating acid mine drainage potential and alteration properties of Zn-Pb wastes from Görgü (Malatya, Türkiye) region 调查Görgü(土耳其马拉蒂亚)地区酸性矿山排水潜力和锌铅废物的蚀变特性
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-07-18 DOI: 10.37190/ppmp/169357
H. Sis, Basri Başaran
{"title":"Investigating acid mine drainage potential and alteration properties of Zn-Pb wastes from Görgü (Malatya, Türkiye) region","authors":"H. Sis, Basri Başaran","doi":"10.37190/ppmp/169357","DOIUrl":"https://doi.org/10.37190/ppmp/169357","url":null,"abstract":"Acid mine drainage (AMD) is one of the main causes of environmental threats resulting from mining activities, yet efficient characterization and prediction of AMD potential of wastes play an important role in preventing AMD. In this study, the chemical and mineralogical properties of fresh waste samples, collected from waste ponds of the Görgü (Malatya) zinc-lead ore processing plant, were determined and the results were used to explain its AMD potential. Alteration properties of the wastes in water was investigated by monitoring certain properties of the prepared suspension with respect time. Additionally, pyrite concentrate particles were added into the suspensions at certain proportions to evaluate its effect on the AMD generation and alteration. Analysis and test results showed that the raw waste was rich in carbonate and poor in pyritic sulfur, and hence did not have the AMD generation potential. The pH, electrical conductivity, and metal ions concentrations of the suspension medium were determined at regular intervals, and obtained data were found very beneficial to explain the time-dependent behavior of waste in water. After the depletion of liquid in the suspension, the remained solid residuals were chemically and mineralogically analyzed to compare with raw waste. It was concluded that sufficient aeration and stirring of suspension is required for noticeable alteration of the waste.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43583817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study on condition prediction and influencing factors of manganese carbonate recovery by high gradient pulse magnetic separation 高梯度脉冲磁选回收碳酸锰条件预测及影响因素研究
IF 1.5 4区 工程技术
Physicochemical Problems of Mineral Processing Pub Date : 2023-06-23 DOI: 10.37190/ppmp/168668
Wang Zhenggang, Nie Guanghua, T. Yun, Piao Haishan, Chen Jiang
{"title":"Study on condition prediction and influencing factors of manganese carbonate recovery by high gradient pulse magnetic separation","authors":"Wang Zhenggang, Nie Guanghua, T. Yun, Piao Haishan, Chen Jiang","doi":"10.37190/ppmp/168668","DOIUrl":"https://doi.org/10.37190/ppmp/168668","url":null,"abstract":"Manganese carbonate ore belongs to weakly magnetic minerals, and its co-associated minerals are mainly non-magnetic minerals, which can be separated from gangue minerals at high magnetic field intensity. However, manganese grade and recovery of magnetic separation concentrate of manganese carbonate ore are low in actual production. Therefore, the influences of manganese carbonate particle size, magnetic field intensity, volume susceptibility, pulse stroke, pH, and other factors were studied. The optimal test conditions for manganese carbonate ore recovery by high-gradient magnetic separation were predicted through the calculation results. The results show that the particle radius of manganese carbonate is 0.020 mm, the pulse impulse time is 200 r/min, and the magnetic field intensity is 0.9 T. The optimum condition test was carried out with Qianbei manganese carbonate ore as the material. The test results show that the optimum conditions are the particle radius of 0.074-0.019 mm, pulse impulse time of 200 r/min, and magnetic field intensity of 1.2 T. The reason for the deviation is that the actual ore has a fine distribution particle size, many associative bodies, complex composition, and serious agglomeration, resulting in variable particle volume susceptibility. The capture yield increases with the increase of magnetic field intensity and volume susceptibility but decreases with the increase of pulse. The lower the surface potential of manganese carbonate, the higher the recovery of manganese carbonate. The grade of manganese concentrate was 19.06% and the recovery was 76.85%. Mixed manganese concentrate with a grade of 18.04% and recovery of 87.14% was obtained by adding drugs and changing the grinding method.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47327833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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