Report of Investigations 8561: Recovery of Copper and Associated Precious Metals from Electronic Scrap

Details

• Personal Author:
  Bilbrey, Joseph H. Jr. ; Duchene, Leslie J. ; Salisbury, H. B.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  As a part of a research program designed to help minimize national requirements for new mineral commodities by maximizing recovery of metals from domestic secondary resources, the Bureau of Mines investigated the development of economic methods for recovering copper and associated metals from complex electronic scrap. Three types were selected for research: (1) multiple-pin plugs and connectors, (2) obsolete aircraft radio assemblies, and (3) the magnetic fraction of shredded electronic scrap furnished by the Bureau's Avondale Research Center. The plugs and connectors, after incineration to remove plastic components and melting, yielded a brittle ingot, as did the internal portion of the radio assemblies. The brittle ingots were ground to minus 35-mesh for processing, and the magnetic material was used in the as-received condition. A process using pretreated or raw scrap as a copper precipitant in various concentrations of acidulated copper sulfate solution was developed as a means of effecting an initial separation and upgrading in the form of high-grade cement copper containing all or most of the precious metals. [Description provided by NIOSH]
• Subjects:
  Copper 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:
  SLRC - Salt Lake City Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  28 pdf pages
• NIOSHTIC Number:
  nn:10006693
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:33a33d875c0929744e6784f2dc47f74429614da46337380e4b74c745e92abe5b81d656393da4e3d6e8376aec0f00f5803b756ef266a7e5607b4142d9bf0bf792
• Download URL:
  https://stacks.cdc.gov/view/cdc/201802/cdc_201802_DS1.pdf
• File Type:
  [PDF - 1.36 MB ]