Recovery of Mercury from Cinnabar Ores by Electrooxidation

Details

• Personal Author:
  Lindstrom, Roald E. ; Scheiner, Bernard J. ; Shanks, Donald E.
• Description:
  The Bureau of Mines investigated an electrolytic technique for oxidizing ore slurried with brine to determine its effectiveness in extracting mercury from ores. Optimization experiments conducted on a 2.5-Pound-mercury-per-ton ore resulted in 95 percent mercury extraction with operating conditions of 30 deg c, a current density of 0.5 Ampere per square inch, and a treatment time of 3.5 Hours. Corresponding power consumption amounted to 38 kilowatt-hours per ton of ore treated. Amenability experiments conducted on 62 different mercury ores resulted in 90 to 99 percent mercury dissolution from ores containing 0.6 to 20 pounds of mercury per ton of ore. Treatment time ranged from 1 to 7 hours in 4- to 20-percent sodium chloride solutions, and power consumption was in the range of 10 to 50 kilowatt-hours per ton of ore. Pilot mill experiments in a 100- to 200-pound-per-hour extraction plant have been in progress to quantify power and reagent requirements. These data will be reported in a subsequent publication. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RERC - Reno Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-14
• NIOSHTIC Number:
  nn:10009005
• NTIS Accession Number:
  PB-221900
• Citation:
  NTIS: PB 221 900 :14 pages
• Federal Fiscal Year:
  1973
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 221 900
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:68ad7bd2ef71e977718634ca91f6f496c0bb569a3fc213f7bcb2a0767494cc2a11aace349a7d6b72dc44fd64378759ae41a402f252f4581dbc76515cc4b97678
• Download URL:
  https://stacks.cdc.gov/view/cdc/237915/cdc_237915_DS1.pdf
• File Type:
  [PDF - 5.62 MB ]