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Recovery of Zircon From Investment Casting Molds
  • Published Date:
    1/1/1985
Filetype[PDF-3.59 MB]


Details:
  • Personal Authors:
  • Description:
    The Bureau of Mines conducted physical and chemical beneficiation studies on three samples of waste investment casting molds to devise a method to liberate and recover zircon. Rod mill grinding, autogenous attrition grinding, and caustic leaching were liberation methods inves-tigated. Flotation, gravity separation, and caustic leaching and sizing were recovery methods investigated. Flotation techniques produced con-centrates containing up to 74.2 pct zircon with a zircon recovery of 53.4 pct. Gravity concentration produced concentrates containing up to 98.6 pct zircon; however, recovery of the zircon was only 57 pct. Caustic leaching and sizing produced concentrates containing up to 98 pct zircon with attendant recoveries of 81 pct.

  • Collection(s):
    National Institute for Occupational Safety and Health
  • Supporting Files:
    No Additional Files
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