2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 18 Intl. Symp on Advanced Materials, Polymers, Composite, Nanomaterials, Nanotechnologies and Manufacturing
| Editors: | F. Kongoli, F. Marquis, N. Chikhradze, T. Prikhna, M. De Campos, S. Lewis, S. Miller, S. Thomas. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 290 pages |
| ISBN: | 978-1-989820-68-1(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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ELEKTROLYZER FOR LEACHING OF GOLD SULFIDE ORES
Tsisana Gagnidze1; Zhiul Kebadze1; Rusudan Chagelishvili 1; Ketevan Ugrelidze2;1IVANE JAVAKHISHVILI TBILISI STATE UNIVERSITY, RAFAEL AGLADZE INSTITUTE OF INORGANIC CHEMISTRY AND ELECTROCHEMISTRY, Tbilisi, Georgia; 2R.AGLADZE INSTITUTEOF INORGANIK CHEMISTRY AND ELECTROHCHEMISTRY, Tbilisi, Georgia;
Type of Paper: Regular
Id Paper: 80
Topic: 43
Abstract:
An analysis of the scientific literature of recent years shows that in the world practice of gold mining, the main method for extracting gold from ores and concentrates is the cyanide method, which, when applied to refractory sulfide ores, does not give economically feasible indicators and is highly toxic [1]. The electrochemical technology developed by us for leaching gold-bearing sulfide ores allows us to solve the problem of increasing the completeness of the use of natural resources while reducing the environmental load on the environment [2]. To implement this method, we designed and tested an open execution electrochemical reactor, which greatly simplifies its maintenance compared to the existing one [3].The process of opening a sulfide mineral is carried out in the anode space of the reactor and, using the selective complexing agent of noble metals present in the solution, the gold from the mineral passes into the solution in the form of a cation exchange complex, which migrates into the cathode space through a perchlorovinyl diaphragm and is discharged at the cathode with the release of metallic gold. The first two operations take place in the anode space, and the third in the cathodic. A carbon fiber material with a highly developed surface is used as a cathode, increasing the intensification of the cathode process. The anode and cathode spaces are separated by heat-treated perchovinyl fabric, which is a good filtering material that protects the cathode space from the penetration the anode space of even the smallest particles from. The design of the electrochemical reactor allowslead an ongoing process of leaching oreand the release of metallic gold at the cathode. KEYVORDS : Sulfide ores, electrochemical processing, electrochemical reactor
Keywords:
Environment; New and advanced technology; Sustainable development;References:
[1]. Hydrometallurgy of gold. Under the editorshipofLaskorin, I.V. M., "Science", 1980, 198p . [2]. Gagnidze, Ts.,Gvelesiani,J., Mamporia, M. Solution for processing of gold-containing sulfide raw materials. Georgian Patent№5220, B1, 2011 [3]. Copyright certificate SU 1712438 A1, 02.15.2000, B.№6