2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 4. Lotter Intl. Symp. / Mineral Processing
| Editors: | Kongoli F, Bradshaw D, Waters K, Starkey J, Silva AC |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 226 pages |
| ISBN: | 978-1-987820-67-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Development of Heap Leaching Technology for Oxide Copper Ores in Kazakhstan
Anna Reznichenko1; Larissa Kushakova1;1VNIITSVETMET, Ust-Kamenogorsk, Kazakhstan;
Type of Paper: Regular
Id Paper: 128
Topic: 5
Abstract:
Over the last years the intensive development of copper hydrometallurgy has been observed in Kazakhstan. It is based on the use of heap leaching and extraction technology for production of high purity cathode copper at high economic efficiency. In VNIItsvetmet the researches on the application of extraction technology for the processing of copper-bearing Kazakhstani raw materials have been carried out since 1997. More than 15 copper ore deposits of oxide and mixed type were tested.
In addition to the study of the material composition of ores and the set of heap leaching researches, the specialized tests on selection of the most suitable organic extractant are carried out. The results of the research are used to draw up a feasibility study, develop process procedures and implement the projects. VNIItsvetmet also provides scientific and technical support for exploitation of the developed technologies.
There are three plants for the processing of oxide copper ores based on the use of heap leaching and extraction technology, operating on the basis of our developments at the Kounrad deposit (with a production of 13,000 cathode copper per annum), Ayak-Kodzhan deposit (3,000 cathode copper per annum) and Aktogay deposit (15,000 cathode copper per annum). Three more plants with a total production of about 15 thousand cathode copper per annum are being prepared for launch in 2017-2018 at the Zhezkazgan, Ay and Almaly deposits.