Chromium Recovery from Superalloy Scrap By Selective Chlorine Leaching

Details

• Personal Author:
  Ettel VA ; Jones DL ; Thomas JA
• Description:
  To recover chromium and other metals from scrap such as superalloy scrap, the scrap is sulfided to provide a molten matte which is cooled and fragmented, the fragments are leached selectively in an aqueous solution with chlorine at a controlled temperature and with agitation while controlling chlorine flow by redox potential to provide the major portion of the chromium in the leach residue and dissolving other valuable metals present as chlorides and thereafter recovering the chromium from the solid. [Description provided by NIOSH]
• Subjects:
  Chromium Metals Occupational Health Safety Temperature
• Keywords:
  Metal Alloys Metallurgical Processes Temperature Effects
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Other
• Place as Subject:
  District of Columbia ; OSHA Region 3
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-5
• NIOSHTIC Number:
  nn:10003207
• Citation:
  US Pat 4,377,410 1983 Mar; :1-5
• CAS Registry Number:
  Chromium (CAS RN 7440-47-3)
• Federal Fiscal Year:
  1983
• Peer Reviewed:
  False
• Source Full Name:
  United States Patent 4,377,410
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:463da0e20badbcf70e1a39d696b015703185db11c6999a26e5d7c02f5d420213fc54a45a14bb918743fd634eed967258822b64d9830bdf9d30c80bc4a2f671ff
• Download URL:
  https://stacks.cdc.gov/view/cdc/219454/cdc_219454_DS1.pdf
• File Type:
  [PDF - 529.77 KB ]