Iron Extraction from Simulated Aluminum Nitrate Leach Liquor

Details

• Personal Author:
  Bauer, Donald J. ; Eisele, Judith A. ; Smith FR
• Description:
  As part of its goal of maintaining an adequate supply of minerals to meet national economic and strategic needs, the Bureau of Mines has studied the removal of iron from simulated aluminum nitrate leach liquors by solvent extraction. Iron must be removed from aluminum nitrate liquor produced by leaching calcined kaolinitic clay with hno3 to reduce the iron level in alumina to less than 0.02 wt-pct fe203 for use in reduction cells. The parameters reported are for (1) extracting iron from a feed containing 1.5 G/l fe with di(2- ethylhexyl) phosphoric acid (ehpa), (2) stripping loaded organic phase with 20-pct hcl, and (3) water washing of loaded and stripped organic phase. Recommended operating conditions are two extraction stages using 15 vol-pct ehpa in kerosene and three stripping stages using 20-pct hcl. Results are also given for tests using other extractants and stripping agents. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RERC - Reno Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-9
• NIOSHTIC Number:
  nn:10006349
• Federal Fiscal Year:
  1982
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:247a17acc97cc77516fef59d04b46bf46aa005684f26719875f7691b017a1dd291d5589d2b4f4b22cb781b8b3a439cf1073f616942ff6d3d0f0dc4e7fc3309cc
• Download URL:
  https://stacks.cdc.gov/view/cdc/237220/cdc_237220_DS1.pdf
• File Type:
  [PDF - 3.39 MB ]