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

Image Number 5 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
Methods and apparatus for intelligent selection of goods and services in mobile commerce
Clock distribution circuit
Fixing apparatus
Communication network management system, method and program, and management computer
Apparatus and method for exerting force on a subject tissue
System and method for customized prompting
Signal processing device and method for providing oscillating signal in the signal processing device
  Randomly Featured Patents
Apparatus for compensating digital video signal
Motion-multiplying linkage-mechanism for sealed-casing structures
Antiglare anticlouding device and automotive outer mirror
Selective hydrodesulfurization of naphtha streams
Wireless chip
Pie plate
Zero insertion pressure test socket for pin grid array electronic packages
Heat storage apparatus
Auto visor sunshield
Propelling transmission system of tractor