Abstract:

Compare to cyanide digestion by oxidation etc. techniques, cyanide recovery and recycling from gold leaching tailings by this poisonous lixiviates is a more economical and desirable technique to meet the strict environmental standard. mainly views the advances of cyanide recovery AVR processes, including the principles and processes of absorption by ion-exchange resin, active carbon, solvent extraction as well as circle recycling etc. are mentioned. It is realized that the cyanide recovery and recycling techniques is a more economical and sustainable technique for a green metallurgical engineering of gold, with which, the economic and society as w ell as environmental benefit s can be achieved.

Key words:

margin: 0cm 0cm 0pt, mso-layout-grid-align: none" class="MsoNormal" align="left">Gold leaching cyanide')">mso-font-kerning: 0pt" lang="EN-US">Gold leaching cyanide, Recovery, AVR processes, Ionmso-bidi-font-family: cajcd-fntaa, mso-font-kerning: 0pt, -mso-bidi-font-size: 10.5pt" lang="EN-US">-exchanging resin')">mso-font-kerning: 0pt" lang="EN-US">exchanging resin, Extractionactive carbon, Green metallurgy engineering