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
Wind energy system having a connection protection device
Optical signal output apparatus, electrical signal output apparatus, and test apparatus
Inter-carrier communications for multimedia-message delivery
System and method for detecting malicious code executed by virtual machine
Liquid composite compositions using non-volatile liquids and nanoparticles and uses thereof
Emulsions containing arylboronic acids and medical articles made therefrom
Intralevel conductive light shield
  Randomly Featured Patents
Optical transceiver providing independent spaces for electrical components and for optical components
Altitude alert system
Method of using scatterometry measurements to control stepper process parameters
Tire chain tensioning
Method for the preparation of cylindrical members for paper containers
Call distribution
Methods, apparatuses, and computer program products for facilitating co-morbid care management
Disposable swab applicator package with standby reservoir
Fail safe bypass for a skid control system
Process for clean-burning fuel from low-rank coal