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
Direct connect single layer touch panel
Inducement of organogenetic tolerance for pancreatic xenotransplant
Image stabilization
Patient programmer with automated MRI compatibility verification for active implantable medical device
Accelerator for a read-channel design and simulation tool
Apparatus and method of preventing signal delay in display device
Magnetoresistive element and manufacturing method of the same
  Randomly Featured Patents
Air conditioner having a low-resistance oil separation unit
Method of covering the sump of underground cavities
Load circuit for integrated circuit tester
Door lock
Portable phone
Helmet mounted display system
Semiconductor device with a selection gate and a peripheral gate
Prefabricated disposable fly trap
In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
Universal fixture support