Copper from ore to finished process

http://www.ltlu.com/ 2009-3-22 12:10:25
[Brief] Copper has been out of mining from underground mining to become a copper products, such as brass, copper wire, copper strips and so on, It needs a lot of stepsMining, broken The first step is extraction oxidation minerals or sulfide minerals.

   Copper has been out of mining from underground mining to become a copper products, such as brass, copper wire, copper strips and so on, It needs a lot of steps

Mining, broken
   The first step is extraction oxidation minerals or sulfide minerals. After excavation or blasting and then crushing walnut-sized ore imaging.

Grinding
   Broken ore crusher at large in the grinding powder, The copper is less than 1% in the powder. Sulfide ore into the ore-dressing stage, leaching into the oxide ore at trough.

Beneficiation
   After beneficiation pulp, about 15% copper. Residue was discarded, water was recycled. Tailings containing copper oxide leaching in accordance with the procedure to enter or return to the trough around the tailing dam.
   After dressing, you can use two different methods to obtain pure copper cathode, the first one is leaching - electrolysis; the other one is: Smelting - electrolytic refining method.

Leaching
   With weak acid solution leaching oxide ore and tailings, resulting in dilute copper sulfate solution.

EW
   Copper-rich solution is to enter the cell after treatment. Electricity, the solution of copper ions directly moved to the beginning made of pure copper sheet metal plate extremely. Precious metals can be extracted from the solution.

Melting
  After some melting and refining production process, increasing copper content, then get the matte, eventually blister copper and 99% of pure copper. Recycling of copper from the beginning remelting, re-application.

Electrorefining
  Put almost pure copper casting near submerged electrolyzer anode plate. Electricity, the copper ions transfer from the anode plate made from copper plate before, where the formation of re-deposited 300 pounds of copper cathode. Gold, silver and platinum can be used in the electrolyte Recycling.

Copper cathode plate
  99.9% purity copper cathode can be transported to the processing plant or foundry melted before use. Copper cathode can also be cast rod, billet, ingot billet or ingot, generally, as pure copper or other metal alloy used pair.