Proceedings of The 2nd International Electronic Conference on Mineral Science最新文献

{"title":"The exploration of metallic deposits using satellite image processing in the Parwan-Panjshir area, Afghanistan","authors":"Mahdi Khalaj, Ziba Karimi, M. Rabbani","doi":"10.3390/iecms2021-09354","DOIUrl":"https://doi.org/10.3390/iecms2021-09354","url":null,"abstract":"The unique tectonic features have resulted in diverse metallic and non-metallic mineralization in Afghanistan. Hence, this paper focused on the development of exploration and mining geology data in Afghanistan. The study area is located in the western Hindu Kush tract and on the northern verge of the Harirud-Panjshir fault, Afghanistan, that mainly associates with the western Hindu Kush and Badakhshan plutonic belts. The rock units include crystalline limestones and diabase formed during the Paleozoic era and Triassic period. The aim of this study was to employ Remote Sensing (RS) methods by using the Landsat-8 satellite and ASTER sensor to spot iron and copper mineralization zones in the Parwan-Panjshir area. Therefore, Band Composition, Principal Component Analysis (PCA), and Band Ratio were applied to the identification of iron oxide minerals. The detected area provided by satellite images analysis had very good compliance with the results of field studies. Furthermore, the Fe – Cu – (Au) skarn mineralization was observed during field surveys. Magnetite (Hematite), Chalcopyrite (Malachite and Azurite), and pyrite mineralization have resulted from the injection of various diabase subvolcanic into carbonate units. Also, high heat flow has caused widespread marble formation in the area. The results were supported by microscopic and geochemical studies.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131499456","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":"Virtual Dimension Analysis of Hyperspectral Imaging to Characterize a Powder Sample from a Mine","authors":"H. Loro, Leonardo Chevez, H. Apaza, Jean Rodriguez, R. Puga, J. Dávalos","doi":"10.3390/iecms2021-09356","DOIUrl":"https://doi.org/10.3390/iecms2021-09356","url":null,"abstract":"","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121481996","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":"Mineralisation, alteration assemblages, geochemistry and stable isotopes of the low-sulfidation epithermal Strauss deposit, Drake Goldfield, north-eastern NSW, Australia","authors":"Emmanuel Madayag, I. Graham, Hong-yan Quan, Rohan Worland, L. Adler, C. Dietz","doi":"10.3390/iecms2021-09350","DOIUrl":"https://doi.org/10.3390/iecms2021-09350","url":null,"abstract":"The intermediate-sulfidation epithermal Strauss deposit is part of the Drake Goldfield of north-eastern NSW. The mineralisation in this deposit is gold-dominant with minor silver and significant levels of zinc, copper and lead. Strauss has a combined total resource of 2.66 Mt @ 1.5g/T Au and 1.9g/T Ag. Mineralisation mainly occurs in the form of vein stockworks of three main orientations. Structural analysis indicates these to be the result of two fault system events and one conjugate fault system. Petrographic and SEM analysis shows that there are two separate mineralisation styles, a pyrite dominant and sphalerite dominant style, with at least three mineralisation events. Correlation analysis for the assay data indicates that Au has a strong relation with Ag and moderate correlation with Pb. Petrographic analysis has shown the deposit to be made-up of varying layers of dacitic ash flow tuffs and a cross-cutting lamprophyre dyke though previous authors classified some of the tuffs as intrusive andesites. XRD analysis indicates widespread argillic-phyllic and propylitic alteration. Silver tellurides have been found as late-stage grains associated with sphalerite mineralisation. Sr shows a significant strong depletion, due to the intense and pervasive alteration at Strauss. The carbon and oxygen isotopes of vein carbonates suggest that the carbon from the late-stage carbonates was derived from a magmatic source with a significant influence of low-temperature meteoric water alteration, while the sulphur isotopes indicate a magmatic sulphur source.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130198494","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":"Microthermometric Considerations for the Kanif (SE Birjand) and Basiran (SW Birjand) Manganese Prospects, Birjand, South-Khorasan, Eastern Iran.","authors":"B. Barghi, Ahmad Azargoon Jahromi","doi":"10.3390/iecms2021-09338","DOIUrl":"https://doi.org/10.3390/iecms2021-09338","url":null,"abstract":"Two manganese prospects were studied. The Kanif prospect is hosted within an ophiolitic complex located 110 km southeast of Birjand, Southern Khorasan province (eastern Iran). The ophiolitic sequence in this region hosts manganese ore occurring as small discrete patches associated with radiolarian cherts. Ore minerals identified by XRD methods and petrographic studies are pyrolusite, hematite, and goethite showing replacement, colloidal and brecciated textures. Carbonate and silica are the gangue minerals. Based on the ICP-ES-MS methods, the average grade of Kanif is 33.92% Mn. Fluid inclusions hosted by calcite from Kanif demonstrate that the ore-forming solutions had salinities within the range of 0.5-4.5 wt% NaCl eq., homogenization temperatures within the range 100-220˚C and densities of about 0.8-1 g/cm3. Pressure is estimated to be about 50 bars, corresponding to a depth of ~150 meters at the time of formation. The Basiran prospect features veins/veinlets and is located 212 km SW of Birjand, Southern Khorasan province (eastern Iran). These veins/veinlets are hosted by andesitic rocks of Eocene to Oligocene age. Ore minerals identified by XRD methods and petrographic studies are pyrolusite, psilomelane, hematite, goethite and limonite, displaying colloform and open-space filling textures. Gypsum, carbonate and silica are the gangue minerals. Alteration zones, specifically argillic alteration zone, are developed along the veins/veinlets within the andesitic wall rocks. Based on the mineralogical and geochemical data, the primary manganese minerals were Mn oxides and hydroxides, which have gradually been converted to psilomelane and finally pyrolusite. The average Mn grade within the veins/veinlets is 25.95%. Fluid inclusion data show that the ore-forming solutions had salinities within the range of 0.5-5.5 wt% NaCl eq., TH range of 120-220˚C and density about 0.8-1 g/cm3. The pressure was estimated to be less than 50 bars, corresponding to a depth of ~150 meters and a hydrothermal origin. This study focused on investigation of fluid inclusions based on petrography, variety, morphologies, salinity and homogenization temperature for different styles of manganese prospects. Kanif is located in Sistan zone and Basiran is located in lut block. Results and Interpretation of microthermometric data suggest hydrothermal origins for both the Kanif and Basiran Mn prospects.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"1398 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120875833","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":"Ecandrewsite (ZnTiO3) in Amphibolite, Sierras de Córdoba, Argentina: A New Paragenetic Occurrence","authors":"M. J. Espeche, R. Lira","doi":"10.3390/iecms2021-09337","DOIUrl":"https://doi.org/10.3390/iecms2021-09337","url":null,"abstract":"Ecandrewsite (ZnTiO3), the zincian end-member of the ilmenite group minerals (IGM) has been found as an accessory relic phase in amphibolites from the Upper Proterozoic-Lower Cambrian metamorphic basement of the Pampa de Olaen region, in the eastern hillside of the Sierra Grande, Cordoba, Argentina. IGM grains occur as anhedral to subhedral inclusions as centers of coronitic titanite, as a result of retrograde metamorphic reactions. Electron microprobe analyses of IGM reveal compositions between Ec56Pph23Ilm21 and Ilm95Pph5 along a solid solution trend ranging from manganoan ferroan ecandrewsite toward ilmenite s.s., passing through intermediate members such as ferroan manganoan ecandrewsite, zincian manganoan ilmenite and manganoan ilmenite. Ecandrewsite and other members of the IGM are considered refractory accessory minerals of a basic igneous rock (likely basalt) later on affected by medium grade regional metamorphism. The inclusions of IGM in titanite would represent non-consumed remnants of the protholithic IGM after coupled reactions with plagioclase that led to the formation of titanite during a retrograde metamorphic event. Even considering that Zn is a relatively widespread element in the metasedimentary associated sequence, we believe that the chemical trend between near end-members ecandrewsite and ilmenite reflects the magmatic composition of IGM in the protholith, where the variations of the Zn contents were controlled by the substitution of Fe by Zn+Mn in the absence any type of regular zonation. However, it is not discarded that chemical adjustments among members of the IGM could have been introduced during prograde regional metamorphism. This would be the first worldwide record of ecandrewsite in amphibolites.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127035011","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":"Mineralisation, Alteration Assemblages, Geochemistry and Stable Isotopes of the Intermediate-Sulfidation Epithermal Kylo Deposit, Drake Goldfield, North-Eastern NSW, Australia","authors":"Hong-yan Quan, I. Graham, Rohan Worland, L. Adler, C. Dietz, A. Greig","doi":"10.3390/iecms2021-09347","DOIUrl":"https://doi.org/10.3390/iecms2021-09347","url":null,"abstract":"The intermediate-sulfidation epithermal Kylo deposit is part of the Drake Goldfield of north-eastern NSW. The mineralization is gold-dominant with minor silver and significant levels of zinc, copper and lead. Kylo has a resource of 2.298 Mt @ 1.23g/T Au and 1.35 g/T Ag. Mineralization mainly occurs in the form of vein stockworks. Petrographic and SEM analysis show that there are at least three mineralization events, with Au mineralization strongly associated with at least a deposit-scale alteration event. Quantitative XRD analysis shows a strong positive correlation between Au-mineralization and argillic-phyllic alteration. Electrum was found as inclusions in massive sphalerite in the main mineralization stage. Correlation analysis for the assay data indicates that Au has a strong relation with Ag and moderate correlation with Pb. Petrographic and geochemical analysis has identified three lithologies, rhyolite, rhyodacite/dacite and andesite, with Au mineralization more associated with the rhyodacites, while at deeper levels some of the andesites also show a relatively strong correlation with Au. Sr shows a significant strong depletion, due to the intense and pervasive alteration at Kylo. The andesitic volcanics show moderate LREE enrichment with small negative Eu anomalies, and relative depletion in Nb, Ta and Ti, indicating an island arc tectonic setting. The carbon and oxygen isotopes of late-stage vein carbonates suggest that the fluid was derived from a magmatic source with a significant influence of low-temperature alteration, while the sulfur isotopes indicate a magmatic sulfur source.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125474052","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":"The Buenaventura Sector of the San Finx W-Sn Deposit (NW Spain): Ore Mineralogy, Host Rocks and Associated Hydrothermal Alterations.","authors":"David Garófano-Medina, M. Fuertes-Fuente, A. Cepedal, A. Martín-Izard","doi":"10.3390/IECMS2021-09358","DOIUrl":"https://doi.org/10.3390/IECMS2021-09358","url":null,"abstract":"The San Finx W–Sn ore deposit is located in the Spanish province of A Coruna (Galicia, NW Spain). Geologically, it occurs in the Galicia-Tras-os-Montes zone which is one of the innermost zones of the Iberian Variscan collisional belt. This ore deposit is characterized by NE–SW trending quartz-dominated veins with centimeter-size hubnerite and cassiterite. This research focuses on one sector of this deposit known as Buenaventura. The aim of this work is to present a mineralogical and petrological characterization of the ore-bearing veins, their host rocks and associated hydrothermal alteration. The vein mineralogy is mainly quartz, muscovite, K-feldspar, apatite and scarce fluorite. The ore minerals are hubnerite, scheelite and cassiterite with columbite and ilmenorutile-struverite inclusions, together with sulfides, mainly chalcopyrite and arsenopyrite, and, in less abundance, molybdenite, lollingite, pyrrhotite, sphalerite, stannite, pyrite, Bi-Pb-Ag sulfosalts and native bismuth. The main host-rocks are micaschist and paragneiss and two types of pegmatites, homogeneous pegmatites and banded aplite-pegmatites with columbite. The host rocks are affected by four types of hydrothermal alterations: tourmalinization, greissenization, feldspathization and silicification. The more widespread alteration is the feldspathization in which the protolith is replaced by massive albite and K-feldspar with fibrous habit, accompanied by apatite, chlorite, rutile, magnetite, hematite, chalcopyrite and sphalerite. In addition, there are highly deformed areas with a complex alteration rich in K-feldspar and sulfides, mainly chalcopyrite, minerals of the stannite group and sphalerite and, in less abundance, bismuthinite, native bismuth, galena and pyrite. This deposit shares features in terms of geological setting, hydrothermal alteration and ore assemblages with exogreisen systems formed in the cupolas of highly fractionated granites in collisional settings.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126366964","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":"The Peculiarities of Crystallization of Lithium-Containing Granite Melt with High Water and Fluorine Contents in the Temperature Range of 800 - 400 °C and Pressure of 1 kbar (According to Experimental Data).","authors":"A. Rusak, Shchekina Tatyana, Zinovyeva Nina, Alferyeva Yana, Khvostikov Vladimir, Gramenitsky Evgeniy, Kotelnikov Alexey","doi":"10.3390/IECMS2021-09361","DOIUrl":"https://doi.org/10.3390/IECMS2021-09361","url":null,"abstract":"The phase relations in the Si-Al-Na-K-Li-F-H-O model granite system are studied experimentally at T = 800, 700 °C and P = 1 and 2 kbar, as well as at T = 600, 550, 500 and 400 °C and P = 1 kbar and different water content from 2 to 50 wt.%. The initial composition was set in such a way that the composition of the resulting silicate melt was close to the granite eutectic. It is shown that in the presence of Li, two immiscible melts are formed in the system—an aluminosilicate (L) and a salt alkali-aluminofluoride (LF). It is shown that at Т = 800 °С, Р = 1 kbar and 2 kbar and water content > 10 wt. %, three phases are equilibrium in the system: L, LF, and fluid (Fl). Cryolite (Crl), which does not contain REE, begins to crystallize from the salt melt at 700 °C. Quartz (Qtz) crystallizes from the silicate melt at 600 °C and the equilibrium phases are L, LF, Crl, Qtz. At T = 500 °C Qtz, Na and K aluminofluorides and polylithionite crystallize from the aluminosilicate melt. The joint crystallization of Crl and Qtz is observed. Large crystals of cryolite and elpasolite are formed in both the salt and silicate melts. At the same time, the residual salt melt enriched in Li and REE is partially preserved. LF is completely crystallized at 400 °C, and L is in a metastable state. It is established that REE, Sc, Y and Li accumulate in the salt melt up to 500 °C with partition coefficients >> 1. REE and Sc enter into composition of the crystal phases at T = 500 °C and 400 °C. Sc partially isomorphically replaces Al. REE most often forms its own fluoride phases of the LnF3 type.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131620275","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":"Feasibility of Bio-Mobilization of Rare Earth Elements from Bauxite Residual Red Mud","authors":"S. Ilyas, Hyunjung Kim, R. Srivastava","doi":"10.3390/IECMS2021-09334","DOIUrl":"https://doi.org/10.3390/IECMS2021-09334","url":null,"abstract":"Background: Red mud is the residual mass resultant from NaOH digestion of bauxite ore by following the Bayer process for aluminum extraction. The global stockpile of red mud is estimated to be about 3 billion tons that either sent to marine disposal or as the dry stack in open space. In both cases, it poses a great environmental threat due to the high alkalinity and the presence of several heavy metals. On contrary, red mud contains a significant amount of rare earth elements (REEs). The increasing demands of REEs with fast depleting mineral reserves are therefore presenting red mud a potential secondary reservoir for REEs’ exploitation. In recent times, numerous studies are conducted using the pyro- and hydro-metallurgical routes albeit the disadvantages like high energy consumption, low recovery, and generation of secondary wastes have found to be associated with the disclosed processes. Due to the inherent benefits of low environmental stress, the less energy-intensive process using the microbial activity, bioleaching is increasingly attractive to the metallurgical operations, especially from the secondary resources. \u0000Results: Henceforth, a feasibility study on the bioleaching of red mud has been investigated using Penicillium chrysogenum strain KBS3 (accession number GQ228447) with glucose, sawdust, and molasses as the substrate material. Three different modes of bioleaching (one-step, two-step, and spent medium) were examined with different capacity of metabolic production of acids. One-step bioleaching involving 12 mM citric acid, 2.5 mM oxalic acid, 1.8 mM tartaric acid, and 1162 mM gluconic acid. Whereas, the respective biogenic acid production was observed to be 15 mM, 1 mM, 0.5 mM, and 152 mM in two-step bioleaching, which were 63 mM, 29 mM, 23 mM, and 3 mM in the spent medium bioleaching while using glucose as the substrate and pulp density at 3%. Concomitant bio-mobilization was analyzed to be 79% Y, 28% La, and 28% Ce in a single-step bioleaching system. In the spent medium bioleaching 63% Y, 28% La, and 28% Ce could be mobilized into biogenic lixiviant, which was 67% Y, 20% La, and 15% Ce in a two-step leaching mode. Using molasses as the substrate, citric acid (4.21 mM, 3.57 mM, and 4.85 mM), oxalic acid (1.55 mM, 1.0 mM, and 0.09 mM), tartaric acid (1.18 mM, 0.95 mM, and 2.17 mM), and gluconic acid (210.19 mM, 52.5 mM, and 0.09 mM) were involved in one-step, two-step, and spent-medium bioleaching, respectively at the same pulp density of 3%. The resultant bio-mobilization was analyzed to be 57% Y, 13.5% La, and 12.77% Ce in one-step; 57% Y, 14% La, and 12% Ce in a two-step, and 49% Y, 6.3% La, and 2.9% Ce in the spent-medium bioleaching system. The insignificant mobilization of REEs (1-5%) was observed in the case of abiotic controls. \u0000Conclusions: One-step bioleaching has shown good potential for the bio-mobilization of REEs from red mud using Penicillium chrysogenum strain KBS3 and glucose substrate. Future studies in this conte","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129997134","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":"Measurement of Light Rare Earth element of Samarium in the Processing of Mineral Concentrate Samples by HLLME Pre-concentration Method and ICP-MS","authors":"A. Dehghan, S. Veyseh, Shabnam Najafi Aslipashaki","doi":"10.3390/iecms2021-09339","DOIUrl":"https://doi.org/10.3390/iecms2021-09339","url":null,"abstract":"Abstract:\u0000In this study, a method based on flotation assistance of homogeneous liquid-liquid microextraction (FA-HLLME) combined with inductively coupled plasma-mass spectroscopy (ICP-MS) was proposed for the measurement of trace Samarium in Mineral concentrate samples. As one of the miniaturized separation and extraction techniques, homogenous liquid-liquid microextraction (HLLME) has been widely applied in the field of Mineral processing. PAN (1-(2-Pyridylazo)-2-naphthol) was used as the complexing agent and 1-Dodecanol and Acetone were selected as extraction and homogeneous solvents, respectively. The factors that influenced the extraction efficiency for Samarium measurement (including pH, extraction, and homogeneous solvents, the concentration of PAN and NaCl, extraction time) were studied statistically. Under the optimum conditions (pH=8.0, 140µL 1-Dodecanol, 1.2 mL Tetrahydrofuran, 3.045×10-4 mol L-1PAN, 2.5mol L-1 NaCl, and 120 sec of extraction time), the linear dynamic range for Samarium determination was 10.0 - 220.0 ng L-1 (R2=0.9862) with a limit of detection (LOD) for Samarium was 2.91 ng L-1. The relative standard deviation (R.S.D.) (C=40 ng L-1, n=7) was 2.1% and the enrichment factor of 250 for Samarium extraction. The proposed method was successfully applied to the measurement of Samarium in different Mineral concentrate samples.","PeriodicalId":118040,"journal":{"name":"Proceedings of The 2nd International Electronic Conference on Mineral Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129883303","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}