Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper










Image Number 7 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
Semiconductor memory system having ECC circuit and controlling method thereof
Contact lens material
Technique for manufacturing bit patterned media
Error correct coding device, error correct coding method, and error correct coding program
Imidazolidine-2,4-dione derivatives, and use thereof as a cancer drug
Printer driver, printer control method, and recording medium
Semiconductor device and method of adjusting characteristic thereof
  Randomly Featured Patents
Medicinal fluid applicator
Front face of a plantable retaining wall block
Grouped exposed metal heaters
Method of producing steel pipes, and welded pipes
Image-forming material for producing a colored relief image
Protective container for font disc segments
Photovoltaic apparatus
Method and apparatus for X-ray or infrared imaging
Method for the preparation of aryl piperazinyl-heterocyclic compounds
Process of recovering components from polyester resins