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Silver Recovery Through Molten Salt Destruction of Sludges and other Solids

  • S. K. Janikowski
  • D. L. Smith
  • G. A. Reiman
  • R. E. McAtee

Abstract

Secondary recovery of precious metals from sludges is applied to minimize the wastes, reduce the waste classifications, and recover the metals. Molten salts, operating at moderate eutectic temperatures, are used to solubilize the sludges, whereupon the precious metals are reduced and gravity separated from the flux. Additional decomposition reactions occur that degrade the remaining flux contaminants. Applications are discussed for various silver bearing solids.

Keywords

Precious Metal Hydroxide Calcium Silver Salt Silver Oxide Sodium Tetraborate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Elsevier Science Publishing Co., Inc. 1990

Authors and Affiliations

  • S. K. Janikowski
    • 1
  • D. L. Smith
    • 1
  • G. A. Reiman
    • 1
  • R. E. McAtee
    • 1
  1. 1.Idaho National Engineering LaboratoryChemical Sciences GroupIdaho FallsUSA

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