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Crushing Techniques for Pneumatic Concentration of Mica.
Smith-CW; Jordan-CE; Sullivan-GV
MISSING :16 pages
Research was conducted by the Bureau of Mines to determine the effectiveness of various types of crushers for use with the Bureau- developed pneumatic concentration technique for mica. Three types of crushers were investigated in this study, a roll crusher, a jaw crusher, and a hammer mill. All the mica concentrates produced contained over 82 percent mica, but recoveries varied considerably. The roll crusher gave the lowest recovery of 46 percent of the mica followed by the jaw crusher with a recovery of 50 percent of the mica. The hammer mill proved the most effective, producing four concentrates with recoveries of at least 70 percent.
IH; Report of Investigations
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division