By William Petruk
Options of appearing utilized mineralogy investigations, and functions and features of lately constructed tools for measuring mineral homes are explored during this publication meant for working towards utilized mineralogists, scholars in mineralogy and metallurgy, and mineral processing engineers. the advantages of utilized mineralogy are awarded by utilizing in-depth utilized mineralogy reviews on base steel ores, gold ores, porphyry copper ores, iron ores and business minerals as examples. The bankruptcy on base steel ores contains a dialogue at the results of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So
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The compacted powder in a sample holder is used when the sample is analysed for mineral quantities as well as for mineral identities. The mounted sample is placed in the path of the X-ray beam so that X-rays can be diffracted by the different minerals. g. scintillation counter). The detector sweeps in an arc across the positions of the Imes diffracted by the minerals in the sample and measures the intensities of the diffracted X-rays at the different peak positions. The data can be read manually from a strip chart or recorded by computer.
Hence bad data cannot be corrected. 18 (a) Narrow Particle Grade 40 Grade (%) nc\ -. ii»a>»K 90 ^ 40 20 Grade (%) 80 60 100 (c) Wide Grade (equivalent to tails) 100 ^J 80 i [ ^r^ 60 40 20 5^^y^^^r i-y P i~^^ r- 1 1 i 1 i ! 5. (5a, 5b and 5c). Actual, measured and corrected liberation at each particle grade (Simplified from Lin, 1996). It is noteworthy that the measurements do not necessarily relate to distributions in the samples. 6. (6a and 6b). Actual, measured and corrected liberation at each particle grade(simplified from Fandrich et al.
Discussion Liberation models are used to determine liberations of minerals in sieved fractions. Determining liberations of minerals in samples involves combining the liberation data for all sieved fractions, plus data for the portion of the sample that is too fme-grained to be sieved (usually a -26 |im unsieved fraction). Liberation data for sievedfractionscan be determined by analysing thefractionsand applying liberation models. Liberation data for the very fme-grained unsievedfractioncan be determined by analysing the unsievedfractionand using the raw data.