Reclaim plasma method and the equipment of precious metal

Reclaim plasma method and the equipment of precious metal

  • CN 102,388,154 B
  • Filed: 11/24/2009
  • Issued: 03/16/2016
  • Est. Priority Date: 11/24/2008
  • Status: Active Grant
First Claim
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1. , for obtaining a continuation method for the composition being rich in precious metal from raw material, said method comprising the steps of:

  • (i) in plasma furnace heating raw to form top slag blanket and bottom melting metal layer, described being heated by makes plasma torch move on the surface of raw material and carry out, to guarantee that heat to be evenly distributed in stove in thing thus to avoid occurring focus and promote the static non-turbulent flow state in described slag blanket or described metal level;

    (ii) described slag blanket is shifted out;

    (iii) described melting metal layer is shifted out;

    (iv) shifted out melting metal layer is solidified;

    V () comprises the fragment of the composition being rich in precious metal and those fragments containing undesirably material by broken for the metal level solidified with formation;

    With(vi) the described fragment comprising the composition being rich in precious metal is separated by isolation technique with described those fragments containing undesirably material;

    Wherein said raw material comprises containing precious metal material and trapping agent metal, described trapping agent metal can form the metal or alloy of sosoloid, alloy or intermetallic compound with one or more of precious metal, and wherein the described melting metal layer shifted out is cast on teeming platform to make it solidify, described molten metal is formed as the thin plate with 1mm-30mm thickness, and wherein said trapping agent metal comprises iron.

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