Report of Investigations 9535: Leaching of Petroleum Catalysts with Cyanide for Palladium Recovery

Details

• Journal Article:
  Reno, NV: U.S. Department of the Interior, Bureau of Mines, RI 9535
• Personal Author:
  Atkinson, Gary B. ; Sibrell, P. L.
• Description:
  The U.S. Bureau of Mines has tested cyanide leaching for recovery of Palladium (Pd) from spent petroleum processing catalysts. Three different catalyst samples were supplied by Gemini Industries, a spent catalyst processor. These catalysts consisted of a zeolite base and contained 0.4 to 0.7 pct Pd. During alkaline cyanide leaching, the catalysts exhibited ion exchange properties due to their zeolite matrices. This could present a safety hazard due to the potential for release of toxic hydrogen cyanide gas. The catalyst leach residues passed the Federal Toxicity Characteristic Leaching Procedure and the California Waste Extraction Test, indicating that landfill disposal of the leach residues would be acceptable. [Description provided by NIOSH]
• Subjects:
  Chemistry Occupational Health Palladium Petroleum Pyrolysis Safety Waste Management
• Keywords:
  Precious-metals; Catalysts; Ion-exchange-resins; Chemical-properties; pH; Pyrolysis; Land-disposal; Palladium; Materials-recovery; Leaching; Cyanide; Waste-disposal
• Source:
  Reno, NV: U.S. Department of the Interior, Bureau of Mines, RI 9535, 1995 Jan; :1-16
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Publisher:
  U.S. Department of the Interior, Bureau of Mines
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Nevada ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RERC - Reno Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  15 pdf pages
• NIOSHTIC Number:
  nn:20039283
• NTIS Accession Number:
  PB95-181723
• Federal Fiscal Year:
  1995
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:56265493ec5d7f61b73caf6010abbd1c6093a7c0ac861d53491be919602c92bb199f5d9fbcf3f410ba17bc0dda7106e45595283903fe452075a258f97da99dfd
• Download URL:
  https://stacks.cdc.gov/view/cdc/10181/cdc_10181_DS1.pdf
• File Type:
  [PDF - 1.38 MB ]