Density separation of fine, high-density particles in a water-only hydrocyclone

B. H. Kim, M. S. Klima

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The use of a 25.4-mm- (1-in.-) diam water-only hydrocyclone for separating liberated 125 × 25-μm high-density particles from similar-size lower-density (2.65 g/cc) quartz particles, as might be used in soil washing applications, was investigated. As expected, cyclone performance was greatly affected by changes in cyclone geometry and operating conditions. A single-stage separation recovered 75% of the magnetite (4.8 g/cc) while rejecting nearly 60% of the quartz. With ferrosilicon (7.0 g/cc) as the heavy component, the recovery improved to 85%. The use of dense medium in a single stage increased both ferrosilicon recovery and quartz rejection to approximately 90% each. In addition, computer simulations of a three-stage circuit were performed. The simulations showed that recoveries approaching 97% with quartz rejections of 95% were possible.

Original languageEnglish (US)
Pages (from-to)26-31
Number of pages6
JournalMinerals and Metallurgical Processing
Issue number4
StatePublished - 1998

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • General Chemistry
  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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