Resources Contact Us Home
Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper

Image Number 3 for United States Patent #5616168.

Impurity streams generated during the metallurgy of copper are hydrometallurgically processed at ambient pressure for recovery of primary values in an energy-efficient manner and with the capture and conversion of metallic impurities to states that are acceptable for disposal into the environment. Hallmark features of the various embodiments of this invention include the water leach of flue dust, a controlled acid leach stage in which metal species are solubilized, the extraction of copper as a sulfide, and the ability to operate the various process stages at essentially ambient pressure.

  Recently Added Patents
Multiple secure elements in mobile electronic device with near field communication capability
Moving picture decoding device and moving picture decoding method
Polishing composition
System, method and computer program product for monitoring and controlling network connections from a supervisory operating system
Single mode optical fiber with improved bend performance
Engine RPM control device
Methods and compositions for wound healing
  Randomly Featured Patents
Method of oligonucleotide sequencing by mass spectrometry
System and method for controlling a print head to compensate for subsystem mechanical disturbances
Method and system for performing biopsies
Fuel injection system for an internal-combustion engine
Method and apparatus for monitoring for a radio link failure
Hand-held electronic basketball game
Portable sterilizing towel warmer
Optical system with wavelength selecting device
Cleaning compositions for removing organic deposits in hard to reach surfaces
Power semiconductor device and power semiconductor module