Characterisation of dolomite fines and their implications in beneficiation

Danda Srinivas Rao, Sunil Kumar Tripathy, Shivakumar Ancadi

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Characterisation studies of dolomite fines (<2 mm) sample generated from a dolomite processing plant of Odisha were carried out, and their implications on reducing the silica content were discussed. The feed material analysing 27.7 % CaO, 19.6 % MgO, 8.4 % SiO2, 0.98 % Fe(total), 1.5 % Al2O3 contents was subjected to characterization studies using optical microscopes, X-ray diffraction and electron microscope instruments. The studies revealed that the primary minerals present in the feed material are dolomite, calcite and quartz and in addition, traces of apatite, orthoclase, pyrite and siderite. Sink and float analysis of the feed material shows that the density fraction >2.91 g/cm3 would yield a product grade <3 % SiO2.

Original languageEnglish (US)
Pages (from-to)318-322
Number of pages5
JournalWorld of Mining - Surface and Underground
Volume65
Issue number5
StatePublished - Sep 2013
Externally publishedYes

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