location of platinum ore smelters

  • Patent US4337226 Recovery of platinum-group metals

    Metal values are recovered from ore concentrates by means of dry grinding, ... Method for smelting and extracting platinum metal from alumina-supported petrochemical ...

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  • Gold metals page of Midwest Refineries, LLC web site

    Each ounce of gold requires the processing of over 6000 pounds of ore! The gold rush of ... What we pay for Gold. Smelters and ... Gold, silver and platinum ...

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  • USGS Minerals Information: Map Data

    The locations of 1,879 coal mines and facilities, ... Metals--Ore Processing Plants and Smelters or Refineries (PDF) Aluminum ... Platinum Group Metals Silver:

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  • Copper mining in the United States Wikipedia

    Copper mining in the United States has been a major industry ... and platinum -group metals ... allowed the average ore grade of milling ore to decline. Smelters ...