Recycling of Zinc Waste for Electrogalvanizing

Details

• Personal Author:
  Cole ER Jr. ; Dattilo, Marion ; O'Keefe, Thomas J.
• Description:
  Bureau of Mines researchers investigated the use of waste products containing zinc as a source of zinc for electrogalvanizing. Industrial wastes studied were lead smelter flue dust, wastewater treatment sludge, copper smelter flue dust, and brass smelter flue dust. After zinc extraction with sulfuric acid, the resultant solutions were partially purified and used to electrogalvanize 0.092- In-diam 1070 alloy steel wire, a common electrogalvanized product. The corrosion resistance of the electrogalvanized wire from the waste electrolyte was compared with electrogalvanized wire from relatively pure electrolyte prepared in the laboratory and electrogalvanized wire from an industrial electrogalvanizing plant. Corrosion rate measurements indicated that electrogalvanized wire obtained from waste electrolyte prepared from brass smelter flue dusts compared favorably with industrial electrogalvanized wire and electrogalvanized wire from the relatively pure electrolyte. The brass smelter flue dusts were chosen for more detailed studies. Impurities in the waste electrolyte caused some problems. Copper was undesirable because it passivated the soluble zinc anode. Other impurities such as cobalt and nickel were more tolerable but also slowly coated the anode. Owing to the ease of removal of copper by cementation, it posed no processing problem for electrogalvanizing. Successful completion of bench-scale work with brass smelter flue dusts led to large-scale trials at an industrial electrogalvanizing plant. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• ISSN:
  0361-3658
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Missouri ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RORC - Rolla Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  399-409
• Volume:
  8
• NIOSHTIC Number:
  nn:10004703
• Citation:
  Conserv Recycl 1985 Jan; 8:399-409
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  True
• Source Full Name:
  Conservation & Recycling
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:400a17701ad0839caf1146554a744d84746a00862977226eafc0e70ccc16bcf1523d16be11c014870e49b809bcd422c1335ab3d73cf98e23adab62f4c07b6820
• Download URL:
  https://stacks.cdc.gov/view/cdc/219587/cdc_219587_DS1.pdf
• File Type:
  [PDF - 2.04 MB ]