Separation and its application for chromite processing

C. Raghu Kumar, Srijith Mohanan, Sunil Kumar Tripathy, Amit Ranjan, Ashok Kumar, T. Venugopalan, Nikkam Suresh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Hydraulic or teetered bed separators (TBS) are finding new avenues for application in the field of mineral processing. Floatex Density Separator (FDS) is a hydraulic/teetered bed separator capable of operating at high tonnage due to its advanced instrumentation. FDS/TBS is being used in Indian mineral sand industry for classification and segregation of different minerals. The purpose of this paper is to provide details on the performance of the plant scale FDS in recovering the chromite from feed (below 1mm size). Historically this feed has been processed using hydrocyclones and spiral classifiers; however, there is a strong trend now to employ teetered bed separators, thus allowing significant changes to be made in the plant for improving process efficiency. In the present work, the performance of the plant scale FDS is described in terms of partition curve (yield, cut size, classification efficiency/Ep) for different combination of process variables and also in terms of metallurgical grade and recovery. It is found that, efficient classification can be achieved at a maximum cut size of 380 μm with and the imperfection is also reported as low as 0.16. The grade of the underflow product is enriched as maximum as 52.2% Cr2O 3 from a feed assaying 40.4% Cr2O3.

Original languageEnglish (US)
Title of host publication26th International Mineral Processing Congress, IMPC 2012
Subtitle of host publicationInnovative Processing for Sustainable Growth - Conference Proceedings
Pages5265-5272
Number of pages8
StatePublished - 2012
Externally publishedYes
Event26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - New Delhi, India
Duration: Sep 24 2012Sep 28 2012

Publication series

Name26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings

Conference

Conference26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth
Country/TerritoryIndia
CityNew Delhi
Period9/24/129/28/12

Keywords

  • Beneficiation
  • Chromite
  • Classification
  • Floatex density separator
  • Hydraulic separator
  • Industrial mineral

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