Desorption of Gold from Activated Carbon

Details

• Personal Author:
  Heinen, Harold J. ; Lindstrom, Roald E. ; Peterson, David G.
• Description:
  Gold is desorbed from activated carbon (loaded with aurocyanide or ca-aurocyanide) by treating the loaded carbon at 80 deg-90 deg c with a stripping solution containing a mixture of a water-soluble low aliphatic alcohol 20-30 and a strong base solution (e.g., 1-2 pct NaOH in water) 80-70 vol pct. Thus, a loaded carbon from a heap- leach, carbon-adsorption cyanide plant containing 362.9 Au and 42.9 Ag oz/ton was treated at 80 deg c with 20 bed volumes of a solution containing methyl alcohol 20-water 80 vol pct and a 10 g/l naoh solution for 5 h. The au desorption was >99 pct. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Other
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RERC - Reno Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  6 pdf pages
• NIOSHTIC Number:
  nn:10007168
• Citation:
  U S Pat 4 208 378 1980 Jun; :
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Source Full Name:
  U.S. Pat. 4,208,378; June 17, 1980; Chem. Abstr. 89:150,186S
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9f1fc0b54ac23fd5e78cc67a1c809aa3a03f9693738ff34126fe611f05f5b054ee1c88fc6e3c1b2f255cd9013d736dc4edd13957c1a802a0fb9b0dbf64523a9f
• Download URL:
  https://stacks.cdc.gov/view/cdc/236264/cdc_236264_DS1.pdf
• File Type:
  [PDF - 284.09 KB ]