Method of electric smelting to matte in situ

Details Method of electric smelting to matte in situ Method of electric smelting to matte in situ

E - Fixed Constructions

21

B

166/35

E21B 43/24 (2006.01)

Patent

CA 1246439

ABSTRACT OF THE DISCLOSURE A method of extraction of metallic sulfides (Matte) from an ore deposit in situ. The contained sulfides are smelted by resistor induced heat creating a matte containing precious metals, including, but not limited to, platinum-group metals and gold and silver (as well as copper, nickel, iron, sulfur, etc). The heavier portion of the bath (matte) settles to the bottom and the slag rises to the top. Further smelting is controlled by positioning of the electrode pairs in the bath, thus regulating heat generation by modu- lation of the resistance between said electrodes. Placement of the electrodes in cased drill holes strategically placed to intersect and penetrate the ore- bearing horizons results in extraction of the valuable metals as matte. The matte can be recovered either as a liquid, or, after cooling, as a solid.

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