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US 11,473,169 B2Granted
Metal recovery method using adsorbent
AssigneeDanam-Ene Co. Ltd.
InventorsYoung Min Oh, Young Joo Jang, Moo Ki Bae
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Abstract
The present invention relates to a method for recovering metals using an adsorbent, which comprises preparing a leachate comprising metal ions and cyanides, wherein the metal ions comprise gold ions and copper ions; and in a state where the leachate has a cyanide (CN) concentration of 0.1 ppm or greater, adding to the leachate an adsorbent, which has an open circuit potential value between the open circuit potential value of the gold ions and that of the copper ions; and selectively adsorbing the copper ions to the adsorbent.
Claims11
A method for recovering metals using an adsorbent, comprising:
- preparing a leachate comprising metal ions and cyanides, wherein the metal ions comprise gold ions and copper ions;
- and
- in a state where the leachate has a cyanide (CN) concentration of 0.1 ppm or greater, adding to the leachate an adsorbent, which has an open circuit potential value between the open circuit potential value of the gold ions and that of the copper ions;
- and selectively adsorbing the copper ions to the adsorbent.
1 more element
Dependencies are inferred from the claim text.