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Bulletin 662: Mica Beneficiation

Public Domain


Details

  • Personal Author:
    Browning, James S.
  • Description:
    The Bureau of Mines conducted laboratory and continuous process development work on weathered mica pegmatites and micaceous schist ores to determine the feasibility of recovering commercial-grade mica concentrates by flotation. The research resulted in the development of two processes for flotation of mica: an acid cationic method for recovery of coarse mica, and an alkaline anionic- cationic method for recovery of fine mica. The research indicated that the two processes may be effectively utilized separately or in combination for flotation of mica from weathered pegmatites and micaceous schists. Concentrates containing over 98 percent mica, with recoveries ranging from 77 to 92 percent, were obtained from the pegmatite ores. The micaceous schist ores yielded concentrates containing 95 to 98 percent mica, with recoveries ranging from 70 to 83 percent. This report summarizes the process development work and demonstrates the feasibility of producing commercial-grade mica concentrates. It also includes details of commercial beneficiation and grinding of mica. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Bulletins
  • Document Type:
    Text
  • Genre:
    Report
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    TURC - Tuscaloosa Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    27 pdf pages
  • NIOSHTIC Number:
    nn:10008872
  • NTIS Accession Number:
    PB-218142
  • Citation:
    NTIS: PB 218 142 :21 pages
  • Federal Fiscal Year:
    1973
  • Peer Reviewed:
    False
  • Source Full Name:
    NTIS: PB 218 142
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:21060dafc55af6528efd2b6de0c54d4c11e34abb786e3576f9a000d8ee9ac1a104e0bcf4a7b3d3db18514fdf1bf8f6dc37aef2dbb54ffde3fba29d9cc62940f7
  • Download URL:
  • File Type:
    Filetype[PDF - 7.82 MB ]
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