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Analysis of 98 individual −200 mesh iron ore samples in a single scanning electron microscope-automated mineralogy session

Analysis of 98 individual −200 mesh iron ore samples in a single scanning electron... Single-step trans-vertical moulds have been shown to increase the throughput of automated mineralogy systems. Owing to the small particle size of iron ore grains in the −200 mesh size fraction (<75 µm), not all of the surface area on a mould is needed for measurement in achieving good statistical representation. Trimming the excess area of a mould results in superfluous material being removed, leaving only the necessary analyte. This allows maximum packing in the sample chamber and promotes efficiency by increasing the quantity of samples that can fit in a newly designed trans-vertical adapter for an FEI MLA™ 650 field emission gun SEM. The analysis was completed using a newly designed sample block holder capable of holding 98 samples. This study represents the most expedient method yet reported to prepare well-polished samples and analyse them in a timely manner that can allow for quicker results in process mineralogy. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Earth Science Taylor & Francis

Analysis of 98 individual −200 mesh iron ore samples in a single scanning electron microscope-automated mineralogy session

Grant, D. C.; Goudie, D. J.; Baird, E.
Applied Earth Science , Volume 127 (1): 6 – Jan 2, 2018
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Analysis of 98 individual −200 mesh iron ore samples in a single scanning electron microscope-automated mineralogy session

Abstract

Single-step trans-vertical moulds have been shown to increase the throughput of automated mineralogy systems. Owing to the small particle size of iron ore grains in the −200 mesh size fraction (<75 µm), not all of the surface area on a mould is needed for measurement in achieving good statistical representation. Trimming the excess area of a mould results in superfluous material being removed, leaving only the necessary analyte. This allows maximum packing in the sample...
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Publisher
Taylor & Francis
Copyright
© 2018 Institute of Materials, Minerals and Mining and The AusIMM
ISSN
2572-6838
eISSN
2572-6846
DOI
10.1080/03717453.2017.1422335
Publisher site
See Article on Publisher Site

Abstract

Single-step trans-vertical moulds have been shown to increase the throughput of automated mineralogy systems. Owing to the small particle size of iron ore grains in the −200 mesh size fraction (<75 µm), not all of the surface area on a mould is needed for measurement in achieving good statistical representation. Trimming the excess area of a mould results in superfluous material being removed, leaving only the necessary analyte. This allows maximum packing in the sample chamber and promotes efficiency by increasing the quantity of samples that can fit in a newly designed trans-vertical adapter for an FEI MLA™ 650 field emission gun SEM. The analysis was completed using a newly designed sample block holder capable of holding 98 samples. This study represents the most expedient method yet reported to prepare well-polished samples and analyse them in a timely manner that can allow for quicker results in process mineralogy.

Journal

Applied Earth Science – Taylor & Francis

Published: Jan 2, 2018

Keywords: Automated mineralogy; scanning electron microscopy; Mineral Liberation Analyzer; iron ore; high-throughput

References

  • A single-step trans-vertical epoxy preparation method for maximising throughput of iron-ore samples via SEM-MLA analysis
  • Mineralogy and petrology of the metamorphosed Wabush iron formation, southwestern Labrador
  • Some Precambrian banded iron-formations (BIFs) from around the world: their age, geologic setting, mineralogy, metamorphism, geochemistry, and origin