Report of Investigations 8446: Experimental Processing of Salt Slags from an Aluminum Dross Furnace

Details

• Personal Author:
  Kaplan, Robert S. ; Magyar, Michael J. ; Makar, Harry V.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  The federal Bureau of Mines has developed a hydrometallurgical method to recover aluminum, aluminum oxide, and fluxing salts from aluminum salt slags. The slag is leached with water at room temperature to produce a saturated brine slurry. Screening of the slurry yields an aluminum-rich fraction that can be returned to the dross furnace. The remaining slurry is vacuum filtered, yielding a clear brine solution and an aluminum oxide filter cake. Evaporation of the clear filtrate produces a high-purity fluxing salt for reuse in the dross furnace. Over 80 pct of the metallic aluminum is recovered in the aluminum-rich oversize fraction, while essentially all the fluxing salts are recovered by evaporation. This report contains the final results of an investigation on a process research unit scale, an economic evaluation of the method, and recommendations to further improve the process. [Description provided by NIOSH]
• Subjects:
  Aluminum Compounds Metal Workers Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• ISSN:
  1066-5552 (print)
• Publisher:
  United States. Bureau of Mines
• Document Type:
  Text
• Genre:
  Case Report
• Rights:
  Public Domain
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  AVRC - Avondale Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  34 pdf pages
• NIOSHTIC Number:
  nn:10006878
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b2b4a619256ec1331429445e69d39f5197b8b628c82f5d05a3ce51874b9aa538baca69f043d52171cca4781eaae86a230efa18d3b5cc79687b0dbc9ebab369f6
• Download URL:
  https://stacks.cdc.gov/view/cdc/201817/cdc_201817_DS1.pdf
• File Type:
  [PDF - 1.64 MB ]