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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Extraction Of Non-Ferrous And Noble Metals From Mill Tailing By Solutions In The Presence Of Oxidizing Agents

( Volume 4 Issue 8,August 2017 ) OPEN ACCESS
Author(s):

Kenzhaliyev B.K., Berkinbayeva A.N., Dosymbayeva Z.D., Sharipov R.Kh.

Abstract:

Optimal parameters of leaching of non-ferrous and noble metals from mill tailing by solutions in the presence of oxidizing agents (paramagnetic catalyst) are investigated.The optimum concentration of sulfuric acid and sodium cyanide was determined in the leaching of gold-containing mill tailings.It is shown that the presence of oxidizing agents in solutions leads to an increase in the extraction of metals into the solution. It was found that the extraction of gold, copper, zinc, lead and manganese during the process of conventional sulfuric acid leaching is significantly lower than during the presence of an oxidizing agent.Dissolution of copper, depending on the different concentration of sulfuric acid (g / dm3: 5.0, 10.0, 15.0, 20.0) showed that the degree of metal extraction by using oxidizing agents increases, respectively, 35.2%, 64.0%, 65.0%, 65.9%.

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