Beneficiation of haematite from fluorspar tailings by reverse flotation

Willie Nheta, Thembelihle Portia Lubisi, Selby Masemola, Mamookho Elizabeth Makhatha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

Fluorspar tailings produced at Vergenoeg Mine contain a substantial amount of haematite. Reverse flotation of haematite from the tailings has been investigated using a batch, bench-scale mechanical cell. Characterisation of the fluorspar tailings was done and effects of various operating parameters on the recovery of haematite were studied. The results showed that 80% of the tailings particles were-150μm in size and major mineral phases are haematite, quartz and calcium tecto-dialuminodisilicate. It contains 69.4% haematite. Dodecylamine (DDA) is a better collector than Betacol and a highest grade of 60.8%Fe was achieved using 300g/t DDA, 400-600g/t starch as depressant and at a pH of 8. Si content in the sinks was reduced to 2.83%.

Original languageEnglish
Title of host publicationProceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015
PublisherAvestia Publishing
ISBN (Print)9781927877173
Publication statusPublished - 2015
EventProceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 - Barcelona, Spain
Duration: 20 Jul 201521 Jul 2015

Publication series

NameProceedings of the World Congress on Mechanical, Chemical, and Material Engineering
ISSN (Electronic)2369-8136

Conference

ConferenceProceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015
Country/TerritorySpain
CityBarcelona
Period20/07/1521/07/15

Keywords

  • Collector
  • Fluorspar tailings
  • Haematite
  • Reverse flotation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • General Chemical Engineering

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