• September 1, 2022

Australian Nickel Conference 2022

Published on September 1st, 2022

CSA Global is proud to be sponsoring and presenting at the upcoming Australian Nickel Conference 2022 presented by Paydirt.

Technical Director, Dr Maxim Seredkin will present on ‘In Situ Recovery; Reduce nickel and cobalt production costs and achieve near zero emissions’ between 5-6 October, 2022 at the Pan Pacific Hotel, in Perth, Western Australia.

The Australian Nickel Conference is the premier event for nickel producers and explorers as Australia’s only dedicated nickel event.

Nickel prices have climbed steadily over the years and with increased investor confidence companies are once again talking about feasibility studies, mines construction and expansion plans.

Abstract

In situ recovery (ISR) transfers hydrometallurgical processing of mineralised bodies to the subsurface to directly obtain solutions for targeted commodities. For ISR to be successful, deposits need to be sufficiently permeable, and the target commodities need to be amenable to dissolution by leaching solutions within a reasonable period.

Modern processing of nickel-cobalt ores generally involves pyrometallurgical/smelting and hydrometallurgical methods. Hydrometallurgical methods include atmospheric acid leaching, high-pressure acid leaching, and heap leaching approaches.

ISR for nickel-cobalt ores has been further developed over the last 20 years in the Urals-Kazakhstan laterite province; this province’s low grade of nickel deposits are uneconomic using traditional processing approaches. Successful laboratory and field pilot ISR tests have recently been completed at several nickel-cobalt deposits, including Tochilnogorskoe, Kungurskoye, Rogozhinskoe and Ekibastuz-Shiderty. A pilot operation (well field and processing plant) was successfully operated at the Gornostay deposit for over one and a half years.

CSA Global prepared an ISR process based on modern technologies to support the Scoping Study for the Ekibastuz-Shiderty and Gornostay deposits in 2019-2020, building on uranium ISR knowledge and the CleanTeq feasibility study results.

Nickel-Cobalt ISR projects are in the first quarter of world nickel projects for operating cost. Capital cost is lower than for HPAL projects by 35%. Initial Capital cost is dramatically lower than HPAL because ISR projects allow start-ups with a small capacity to generate early profit, which can be re-invested in expansion. Therefore, the required initial funds are not substantial compared to HPAL projects.

The benefits of ISR technology are considered environmentally friendly due to minimal landscape disturbance, minimal waste and tailing dumps, no pollution of the atmosphere, self-remediation of underground waters, contaminated groundwater cleaning after conventional mining, and decreased greenhouse gas emissions.

ISR technology is well suited to nearly all global lateritic and saprolite nickel-cobalt deposits, both above and below the water table, with nickel laterite deposits in Western Australia ideally suited to this approach.

About our Presenter

Dr Maxim Seredkin Principal Consultant
Dr Maxim Seredkin
Principal Consultant

Dr Seredkin has more than 18 years’ experience in exploration, mining production and resource estimation. He has experience in a range of commodities and reporting codes (including JORC and NI43-101). Maxim is particularly sought after in industry and academia for his expertise in uranium, he has in-depth experience across a range of geological settings and deposit types. He has specialist skills in the application of in-situ recovery for uranium extraction. In addition to uranium expertise, Maxim has experience in bauxite, rare earths and iron ore. Maxim has a strong scientific background, with research experience in ore genesis, petrology and the mineralisation of carbonatite, alkaline and ultramafic complexes, in hydrothermal-metasomatic gold and tungsten deposits.

Connect with Maxim Seredkin

Programme

Australian Nickel Conference 2022

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