Pub Date : 2022-06-22DOI: 10.1080/25726641.2022.2088960
M. Peterson, J. Manuel
ABSTRACT The composite microhardness (SCH) and composite fracture toughness (SCFT) of seven sinter samples were calculated utilising the modal proportion of distinct particle textural types, ‘sinter microtypes’ (SM). Ten SM were defined based on phase association, phase texture and particle texture. The SCH/SCFT of each microtype was calculated by defining an idealised composition and utilising the mean microhardness/fracture toughness of different textural forms of common sinter phases. Comparison of SCH and SCFT with sinter metallurgical indices and major element chemistry showed relatively stronger linear correlations with the latter. Modifying the idealised compositions of SM to calculate SCH/SCFT did not notably change correlations with sinter RDI, RI, TI. Calculating SCH/SCFT by weighting the input of SM variably improved correlations with sinter RDI, RI, TI. Providing additional weighting to nuclei/primary phase-bearing SM provided the best correlation with RDI and RI, whereas additional weighting to bonding phase-bearing SM provided the best correlation with TI.
{"title":"Using a particle-based approach (sinter microtypes) for the geometallurgical characterisation of iron ore sinter","authors":"M. Peterson, J. Manuel","doi":"10.1080/25726641.2022.2088960","DOIUrl":"https://doi.org/10.1080/25726641.2022.2088960","url":null,"abstract":"ABSTRACT The composite microhardness (SCH) and composite fracture toughness (SCFT) of seven sinter samples were calculated utilising the modal proportion of distinct particle textural types, ‘sinter microtypes’ (SM). Ten SM were defined based on phase association, phase texture and particle texture. The SCH/SCFT of each microtype was calculated by defining an idealised composition and utilising the mean microhardness/fracture toughness of different textural forms of common sinter phases. Comparison of SCH and SCFT with sinter metallurgical indices and major element chemistry showed relatively stronger linear correlations with the latter. Modifying the idealised compositions of SM to calculate SCH/SCFT did not notably change correlations with sinter RDI, RI, TI. Calculating SCH/SCFT by weighting the input of SM variably improved correlations with sinter RDI, RI, TI. Providing additional weighting to nuclei/primary phase-bearing SM provided the best correlation with RDI and RI, whereas additional weighting to bonding phase-bearing SM provided the best correlation with TI.","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"132 1","pages":"1 - 12"},"PeriodicalIF":1.2,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46397476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-08DOI: 10.1080/25726641.2022.2050490
H. Dehghani, Mohammad Mehdi Salarirad, A. Abdolahzadeh
ABSTRACT Spirals are one of the most widely used beneficiation equipment in mineral processing industry. The prerequisite to improve spirals' performance is to understand the forces that affect valuable and gangue minerals' separation. This paper investigates how magnetic properties of particles can be used to achieve a sharper separation of magnetic and non-magnetic particles in spirals. To this end, separation behavior of a synthetic mixed magnetite and quartz particles in the presence and absence of magnetic field was investigated via analyzing variations in the forces that affect particles’ separation in a spiral. Changes in Zero force line were considered as the reference point in the studies. In this regard an innovative magnetic-spiral was designed and fabricated. A magnetic force was added to separation process of the selected spiral. This, increased fine particles grade and recovery up to 8.5% and 7.5% respectively.
{"title":"Magnetic spirals: an innovative approach for enhancing the separation of ferro- and para-magnetic particles","authors":"H. Dehghani, Mohammad Mehdi Salarirad, A. Abdolahzadeh","doi":"10.1080/25726641.2022.2050490","DOIUrl":"https://doi.org/10.1080/25726641.2022.2050490","url":null,"abstract":"ABSTRACT Spirals are one of the most widely used beneficiation equipment in mineral processing industry. The prerequisite to improve spirals' performance is to understand the forces that affect valuable and gangue minerals' separation. This paper investigates how magnetic properties of particles can be used to achieve a sharper separation of magnetic and non-magnetic particles in spirals. To this end, separation behavior of a synthetic mixed magnetite and quartz particles in the presence and absence of magnetic field was investigated via analyzing variations in the forces that affect particles’ separation in a spiral. Changes in Zero force line were considered as the reference point in the studies. In this regard an innovative magnetic-spiral was designed and fabricated. A magnetic force was added to separation process of the selected spiral. This, increased fine particles grade and recovery up to 8.5% and 7.5% respectively.","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"131 1","pages":"345 - 354"},"PeriodicalIF":1.2,"publicationDate":"2022-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41981055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-28DOI: 10.1080/25726641.2022.2043026
M. Rahman, K. J. Davey, G. Heyes, W. Bruckard, G. Sparrow, M. Pownceby, J. Tardio, Md. Nazim Zaman
ABSTRACT A study into the possible separation of feldspar from quartz in a Bangladesh river sand sample was undertaken with the aim of producing a high-grade quartz product for potential use in glassmaking. Flotation was used to upgrade two river sand concentrates, with sizings of +250 µm and −250 µm, from the Brahmaputra River. Feldspar was floated from quartz using dodecylamine as collector in an acidic circuit at pH 2–2.5 after a mica prefloat. For the −250 µm fraction, the best quality quartz product assayed 96.8 wt% SiO2 and 1.95 wt% Al2O3 with 46.7 wt% of the feed quartz recovered at a quartz content of 89.1 wt% quartz. A test on the +250 µm fraction, which was firstly ground then deslimed at 50 µm before mica and feldspar flotation stages, produced a quartz product assaying 99.5 wt% SiO2 and only 0.3 wt% Al2O3 with a quartz content of 98 wt%.
{"title":"Upgrading a Brahmaputra River sand from northern Bangladesh by flotation to produce a high-grade silica glass sand concentrate","authors":"M. Rahman, K. J. Davey, G. Heyes, W. Bruckard, G. Sparrow, M. Pownceby, J. Tardio, Md. Nazim Zaman","doi":"10.1080/25726641.2022.2043026","DOIUrl":"https://doi.org/10.1080/25726641.2022.2043026","url":null,"abstract":"ABSTRACT A study into the possible separation of feldspar from quartz in a Bangladesh river sand sample was undertaken with the aim of producing a high-grade quartz product for potential use in glassmaking. Flotation was used to upgrade two river sand concentrates, with sizings of +250 µm and −250 µm, from the Brahmaputra River. Feldspar was floated from quartz using dodecylamine as collector in an acidic circuit at pH 2–2.5 after a mica prefloat. For the −250 µm fraction, the best quality quartz product assayed 96.8 wt% SiO2 and 1.95 wt% Al2O3 with 46.7 wt% of the feed quartz recovered at a quartz content of 89.1 wt% quartz. A test on the +250 µm fraction, which was firstly ground then deslimed at 50 µm before mica and feldspar flotation stages, produced a quartz product assaying 99.5 wt% SiO2 and only 0.3 wt% Al2O3 with a quartz content of 98 wt%.","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"131 1","pages":"330 - 344"},"PeriodicalIF":1.2,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44432634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-09DOI: 10.1080/25726641.2021.1999196
H. Dehghani, Mohammad Mehdi Salarirad, Hosein Asli
ABSTRACT Settling behaviour of particles in aqueous mediums depends on the resultant force acting on them. This force normally is the resultant of gravity, buoyancy and drag forces. Therefore, the settling velocity of coarse and light particles is very close to that of fine but dense particles. This fact is the major cause of poor beneficiation of fine valuable minerals in gravitational separation devices like spirals. So, implementing of an external force such as magnetic force may well improve the beneficiation of such particles. Theoretical analysis of terminal settling velocity (TSV) of particles shows that a magnetic field aligned with gravity can increase TSV of minerals with magnetic properties which in turn results in higher free settling ratios between magnetic and non-magnetic particles. In this regard, an innovative laboratory device was designed, fabricated and used to better understand the simultaneous effects of gravity and a magnetic force aligned with it.
{"title":"Applying an equivalent free settling ratio to enhance ferro-magnetic and para-magnetic particles’ separation efficiency using the influence of a magnetic field aligned with gravity","authors":"H. Dehghani, Mohammad Mehdi Salarirad, Hosein Asli","doi":"10.1080/25726641.2021.1999196","DOIUrl":"https://doi.org/10.1080/25726641.2021.1999196","url":null,"abstract":"ABSTRACT Settling behaviour of particles in aqueous mediums depends on the resultant force acting on them. This force normally is the resultant of gravity, buoyancy and drag forces. Therefore, the settling velocity of coarse and light particles is very close to that of fine but dense particles. This fact is the major cause of poor beneficiation of fine valuable minerals in gravitational separation devices like spirals. So, implementing of an external force such as magnetic force may well improve the beneficiation of such particles. Theoretical analysis of terminal settling velocity (TSV) of particles shows that a magnetic field aligned with gravity can increase TSV of minerals with magnetic properties which in turn results in higher free settling ratios between magnetic and non-magnetic particles. In this regard, an innovative laboratory device was designed, fabricated and used to better understand the simultaneous effects of gravity and a magnetic force aligned with it.","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"131 1","pages":"320 - 329"},"PeriodicalIF":1.2,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47387768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.11648/j.ijmpem.20220701.14
Zhang Jin Song
{"title":"Determination Method of Gas Content in Limestone and Its Application","authors":"Zhang Jin Song","doi":"10.11648/j.ijmpem.20220701.14","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220701.14","url":null,"abstract":"","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"13 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87779230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.11648/j.ijmpem.20220702.12
Taufik Arief, Hasjim Machmud, Eva Oktinasari
{"title":"Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media","authors":"Taufik Arief, Hasjim Machmud, Eva Oktinasari","doi":"10.11648/j.ijmpem.20220702.12","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220702.12","url":null,"abstract":"","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"48 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85796014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.11648/j.ijmpem.20220701.15
Francis Asokogene Oluwadayo, Okafor Michael, Oboh Anthony
{"title":"Design and Development of a 0.012 m<sup>3</sup> Froth Flotation Machine from Locally Sourced Materials","authors":"Francis Asokogene Oluwadayo, Okafor Michael, Oboh Anthony","doi":"10.11648/j.ijmpem.20220701.15","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220701.15","url":null,"abstract":"","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"10 9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83575528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Compressive Strength and Microstructure Analysis of Magnesium Fluxed Pellets","authors":"Zeyu Chen, Changqing Hu, Xuefeng Shi, Qichen Hu, Lianjie Liu, Hong-li Xiao","doi":"10.11648/j.ijmpem.20220701.13","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220701.13","url":null,"abstract":"","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"67 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76975248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.11648/j.ijmpem.20220702.14
Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li
{"title":"Research Progress of Fusion Welding Techniques for TiNi Alloy to Steel","authors":"Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li","doi":"10.11648/j.ijmpem.20220702.14","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220702.14","url":null,"abstract":"","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"28 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88610416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.11648/j.ijmpem.20220701.11
Taufik Arief
: Mineral dressing, especially metal minerals in Indonesia, is carried out using appropriate methods based on their properties and characteristics. The method often used is gravity concentration. The technology that makes use of it is a shaking table. This tool works based on the difference in specific gravity and pаrtіcle size in the flowing film concentration which exerts a thrust against the pаrtіcles on the deck. In an effort to meet the needs of practicum and research in the mining engineering department, especially the Sriwijaya University Mineral Processing Laboratory. For this reason, the existing equipment in the laboratory is modified by changing the design and size of its main components. The deck is designed with a length of 170 cm and a width of 102 cm. The riffles are installed parallel to a height of 3 mm, a width of 1 cm and a spacing of 3 cm. Experimentation is carried out by adjusting the variation of the variables. The variables used as parameters are deck slope (4°, 6° and 8°), water flow rate (10, 12 and 15 L / min) and feedingspeed (5, 10 and 15 minutes). The sample used was refined tin ore. Sampling at two locations, namely sample A at the Bantam B122 Collection Station, Belinyu and sample B at the TKT DU1521 Jangkang Washing Plant Station.
{"title":"Design and Experimentation Shaking Table Tool for Gravity Concentration Metal Mineral Separation","authors":"Taufik Arief","doi":"10.11648/j.ijmpem.20220701.11","DOIUrl":"https://doi.org/10.11648/j.ijmpem.20220701.11","url":null,"abstract":": Mineral dressing, especially metal minerals in Indonesia, is carried out using appropriate methods based on their properties and characteristics. The method often used is gravity concentration. The technology that makes use of it is a shaking table. This tool works based on the difference in specific gravity and pаrtіcle size in the flowing film concentration which exerts a thrust against the pаrtіcles on the deck. In an effort to meet the needs of practicum and research in the mining engineering department, especially the Sriwijaya University Mineral Processing Laboratory. For this reason, the existing equipment in the laboratory is modified by changing the design and size of its main components. The deck is designed with a length of 170 cm and a width of 102 cm. The riffles are installed parallel to a height of 3 mm, a width of 1 cm and a spacing of 3 cm. Experimentation is carried out by adjusting the variation of the variables. The variables used as parameters are deck slope (4°, 6° and 8°), water flow rate (10, 12 and 15 L / min) and feedingspeed (5, 10 and 15 minutes). The sample used was refined tin ore. Sampling at two locations, namely sample A at the Bantam B122 Collection Station, Belinyu and sample B at the TKT DU1521 Jangkang Washing Plant Station.","PeriodicalId":43710,"journal":{"name":"Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy","volume":"48 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79059575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：