Mineral composition and phase analysis of malaysian tin ore
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Date
2017-06
Authors
Syed Mohamad Ismail Bin Syed Mohd Sukri
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Abstract
In this study, “Mineral Composition and Phase Analysis of Malaysian Tin Ore” has been carried out in this study using tin ore from Rahman Hydraulic Tin Sdn. Bhd. The study has been carried out with ore characterization where the physical, chemical, and mineralogical will be focused. Five method were used in this determination, which is include the mineral identification using Polarizing Microscope analysis, mineral composition by using X-Ray fluorescence (XRF), identification and quantification phase analysis by X-Ray Diffraction (XRD), Scanning Electron Microscope combined with Energy Dispersive X-Ray (SEM-EDX) analysis and mineral liberation by Image J software. The XRF result showed the presence of different aggregates of minerals and chemical composition that are SnO2, Al2O3, SiO2, PO2, SO3, K2O, Fe2O3, As2O3, MgO, Na2O, TiO2, P2O5, CaO and etc. The sample is an interlock mineral which proved in SEM-EDX result which is cassiterite mineral is interlock with few minerals pyrite, rutile, quartz, hematite, etc. XRD phase patterns showed the other minerals such as cassiterite, arsenopyrite, quartz, hematite, ilmenite, stibnite and pyrrhotite. Liberation study of Image J is the particle in raw image were separated by simple process that called “threshold”. The main objectives of this process is to measured and calculate area of unliberated and liberated sample images from each sample based on their sizes. It can pixel and area of value statistics sample. Analysis of variance (ANOVA) by using Minitab 16 software were study responses of the Sauter Mean Diameter (SMD). Thus, it clearly shows that there is one significant effect, which is speed rate is 0.020 and time of the milling process, it is not significant effect since the p-value is higher than 0.0.