Copper extraction method of etching waste liquid or low copper containing waste liquid

Copper extraction method of etching waste liquid or low copper containing waste liquid

  • CN 1,904,142 A
  • Filed: 07/08/2006
  • Published: 01/31/2007
  • Est. Priority Date: 07/08/2006
  • Status: Active Grant
First Claim
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1. the copper extraction method of etching waste liquor or low copper containing waste water is characterized in that this method comprises the following steps:

  • A), the cupric ion in etching waste liquor or the low copper containing waste water is transferred in the copper extractant with etching waste liquor or low copper containing waste water and copper extractant thorough mixing;

    B) be that 10%~

    50% Dilution of sulphuric acid liquid carries out rinsing with the extraction agent concentration of above-mentioned copper ions, obtain copper sulfate liquid;

    C) above-mentioned copper sulfate liquid is pumped into electrolyzer and carry out electrolysis, make electrolytic copper.

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