Resources Contact Us Home
Electrochemical reactor for copper removal from barren solutions

Image Number 10 for United States Patent #4911804.

A system for treating a barren solution typically containing a heavy metal such as copper, and complexed cyanide, from a precious metal mill, is treated in a first electrochemical cell to remove the heavy metal and free the cyanide whereafter the treated solution can be returned to the precious metal mill as leaching solution; the barren solution flows through a porous cathode in which the heavy metal is electrochemically deposited, and against an inert anode; the deposited heavy metal is recovered in a sheet form by employing the heavy metal loaded cathode as an anode in a second electrochemical cell, the heavy metal entering solution and being deposited on a cathode sheet typically of stainless steel or titanium from which a deposited sheet of the heavy metal is readily peeled; the porous cathode free of heavy metal can be reused in the first cell.

  Recently Added Patents
Configurations and methods for effluent gas treatment
Information processing apparatus and power supply controlling method
Radiation-curable ink composition, ink jet recording method, and recorded matter
Electronic device and control method therein
Optical article comprising a temporary anti-fogging coating with improved durability
High-order harmonic device of cavity filter
Multi-bank queuing architecture for higher bandwidth on-chip memory buffer
  Randomly Featured Patents
Automated geo-fence boundary configuration and activation
Enantiomeric separation of (RS)1-(4-chlorophenyl)-2-chloroethanol by lipase catalyzed hydrolysis of its acetate
Communication network system and loopback control method
Cutting mechanism
Picture signal record/playback apparatus and method thereof for time lapse VCR
Method of forming spray deposit and integrated sealer layer
Postural corrective ankle stabilizing insole
Television set
Concrete placer/spreader having roll in/roll out conveyor