Resourcing Tomorrow Archives - International Mining

Czech Republic-based Draslovka Holding is heading into a busy 12-month period where its glycine leaching technology will be showcased at numerous mining projects across the globe, the company told IM on the side lines of the Resourcing Tomorrow conference, in London, this week.

According to Ivor Bryan, Director of Mining Innovation at Draslovka Mining Solutions and the former MD of Mining & Process Solutions (MPS), the entity responsible for the development of the GlyCat™ and GlyLeach™ technologies, the company is embarking on around 10 projects in the mining space, which will prove up the 3,500 hours of testing that has been conducted at MPS’ facilities in Perth, Western Australia.

MPS was acquired by Draslovka, a major sodium cyanide producer in 2022, with the aim of the transaction being to grow and develop the glycine leaching business.

Gold leach testing via GlyCat has been the major area of focus over the last decade. The process was invented to reduce cyanide consumption while maintaining gold recovery for gold ores from deposits containing nuisance copper. It has been designed to enhance the dissolution of gold and copper in gold/copper ores where glycine is used as a catalyst with cyanide in a cyanide-starved leaching environment. It doesn’t replace cyanide, but, in fact, enhances its leaching capabilities by dealing with the high-cyanide consuming copper within these gold-copper orebodies.

Yet, the company is also now starting to make inroads into the base metal space through GlyLeach, with nickel and cobalt two specific areas of interest. The technology is able to leach the targeted metals with enhanced selectivity compared with conventional methods. It will solubilise copper, nickel, cobalt and zinc, while gangue minerals such as iron, manganese, silicates and carbonates remain in the leach residue, Draslovka says.

This is allowing the company to promote that it can reduce the capital expenditure associated with processing these metals by removing the need for smelting, or in the case of tailings deposits, helping recover metal from assets previously written off as ‘waste’.

While the technology could have applications at run of mine operations, Bryan and his colleague Jackson Briggs, Corporate Development Manager of Draslovka, believe the most immediate opportunity is in tailings where the application of glycine leaching on ‘waste’ material could recover valuable metals while reducing the potential liabilities associated with such storage facilities.

Of the 10 or so projects the company has ahead of it, one is situated in Western Australia where the company is looking to recover nickel and cobalt metals from a tailings deposit of a major mining company.

Another project – much closer to fruition – is in Chile and involves leaching a carbonate-hosted copper oxide deposit containing some 600 t of material.

In both cases, the company is looking to demonstrate that it can recover valuable metals at high recovery rates, with low impact – namely rationalising reagent and water use and, in the case of nickel-cobalt, removing smelting from the equation.

This, according to Draslovka CEO, Pavel Bruzek, is a “win-win” for mining companies and their stakeholders, benefitting both the balance sheet and the operational environmental footprint.

“While we are a major sodium cyanide producer, when we saw the potential of MPS’ glycine leaching technology and the increase in metallurgical complexity of orebodies looking to be exploited, it made perfect sense to work with and promote this technology,” he told IM. “It is the responsible thing to do for the industry.”

Beacon Events has rebranded the Mines and Money London event and come up with three comprehensive tracks that, it says, covers a spectrum of critical topics around the energy transition, ESG, sustainability, circular economy, technology, services and junior mining investment.

New for 2022, Resourcing Tomorrow, brought to you by Mines and Money, is a global forum for the coming together of decision makers, mining leaders, policymakers, investors, commodity buyers, technical experts, innovators and educators for three days of learning, deal-making and unparalleled networking, the event organisers say.

With an anticipated audience of 2,000 attendees, Resourcing Tomorrow runs from November 29 to December 1, 2022, at the Business Design Exhibition Centre in London.

The three tracks – Resourcing Tomorrow, Reimagining Mining and Mines and Money – will cover 120-plus talks, panel discussions and keynote presentations from 150-plus industry experts. This includes:

Jakob Stausholm, Chief Executive, Rio Tinto;
Mark Bristow, President & Chief Executive Officer, Barrick;
Roy Harvey, Chief Executive Officer, Alcoa;
Mikael Staffas, President & Chief Executive Officer, Boliden;
Stuart Tonkin, Chief Executive Officer, Northern Star Resources;
Rohitesh Dhawan, President and Chief Executive Officer, International Council of Mining and Minerals, ICMM
Katy Hebditch, Head of Engagement – Technical and Sustainability, Anglo American;
Ellen Lenny-Pessagno, Global Vice President for Government and Community Affairs, Albemarle; and
Elaine Dorward-King, Non-executive Director for Sibanye Stillwater, Kenmare Resources and NovaGold.

On the third day, the Mines and Money Outstanding Achievement Awards will take place at the Bloomsbury Big Top to celebrate the very best of the industry through awards from exploration to deal making, from innovation in technology to CEOs who have made a difference, these awards recognise and reward excellence.

International Mining is a media sponsor of the Resourcing Tomorrow event

Draslovka about to move into glycine leaching mining demonstration phase

Mines and Money London looks at Resourcing Tomorrow