Pressure leaching system and method

Pressure leaching system and method

  • CN 101,040,058 B
  • Filed: 09/08/2005
  • Issued: 05/09/2012
  • Est. Priority Date: 09/10/2004
  • Status: Active Grant
First Claim
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1. system is leached in a pressurization that is used for leaching operation, comprising:

  • At least one receives the reaction zone of waiting to leach the ore pulp material from slurry source;

    Saidly wait to leach the ore pulp material and comprise raw ore and infusion solution;

    Slurry source is provided with this reaction zone relatively;

    Make ore pulp under the effect of gravity, stay in this reaction zone, the supercharging of leaching operation needed at least 30% is provided whereby, wherein this reaction zone comprises;

    One section with respect to slurry source to extending below and comprising first heat recovery exchanger that is disposed in order and the pipeline of second heat recovery exchanger;

    Link to each other, be positioned at first reaction vessel in the second heat recovery exchanger downstream with this to the pipeline that extends below, this first reaction vessel is used to leaching operation provides extra dwell time;

    AndReticulattion, its make from first reaction vessel emit and turn back to second heat recovery exchanger, the ore pulp that turns back to first heat recovery exchanger then become netted, thereby to the ore pulp that is passed down through this segment pipe from slurry source sensible heat is provided;

    AndSecond reaction vessel;

    This second reaction vessel is connected between second heat recovery exchanger and first heat recovery exchanger;

    Be used for receiving and returned the netted ore pulp that passes second heat recovery exchanger;

    For leaching operation provides extra dwell time, said first heat recovery exchanger is arranged to receive the netted ore pulp of returning from second reaction vessel.

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