Method and apparatus for homogenizing and stabilizing an iron-bearing residue
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United States of America Patent
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Jul 21, 2015
Grant Date -
Mar 7, 2013
app pub date -
May 31, 2011
filing date -
Jun 4, 2010
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Abstract
A method and apparatus for converting an iron-bearing residue generated in a hydrometallurgical process that contains small amounts of soluble heavy metals into a stable form by means of a neutralizing agent. The residue is elutriated and the elutriated residue is fed into at least one stabilization or homogenization reactor, into which a neutralizing agent is also routed, and the homogenous mixing together of the residue and neutralizing agent takes place by means of a helix mixer, where the ratio of the diameter of the mixer to the diameter of the reactor is 0.75-0.99.
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