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
Image processing apparatus, image processing method, and program to create a composite image from color image data and monochrome image data
Wafer processing method and system using multi-zone chuck
Image forming system, prognosis criterion setting apparatus, prognosis apparatus, image forming apparatus and non-transitory computer-readable recording medium
Method of manufacturing pipe with branch
Output device, source apparatus, television set, system, output method, program, and recording medium
Modular utility rack
Integrated circuit with electromagnetic intrachip communication and methods for use therewith
  Randomly Featured Patents
Tetracycline-regulated adeno-associated viral (AAV) vectors for gene delivery to the nervous system
Air freshener doll
Cord holding attachment for electrical receptacle
Methods and apparatus for random backoff based access priority in a communications system
Methods and apparatuses for controlling access to computer systems and for annotating media files
Image processing device, image processing method and remote-scan image processing system using the same
Pizza slicer
Storage method of semiconductor storage apparatus
Radar sensor
Preventive maintenance undercarriage lights