RCS - Draslovka a.s. - First global commercial heap leach use of GlyCat
29/08/2023 15:15
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RNS Number : 6565K Draslovka a.s. 29 August 2023
First global commercial heap leach use of GlyCat Process
· GlyCat demonstrates industry-leading 78% gold recovery for heap
leaching
· Expected 70% reduction in reagent costs
· Reduces operating risk through mitigation of local cyanide supply
disruption
Draslovka a.s. ('Draslovka'), a leading specialty chemicals company, announces
it has executed a user license with Bayan Airag Exploration LLC in Mongolia
for the world's first application of its proprietary glycine gold leaching
process, GlyCat(TM) ('GlyCat'), in a commercial heap leaching application.
Application of the technology has commenced to extract gold from ores mined
from its Golden Hills and Limestone Ridge pits.
The decision to fully implement the technology on its heap leach operations
was made following site-based testing and culminating in a 1000-tonne trial
heap leach. The collaboration involved staff from Draslovka's Perth-based
mining innovation centre and Bayan Airag site-based staff. The recent heap
leach trial demonstrated higher recoveries than conventional cyanidation, with
78% overall gold recovery. This was achieved with a 65% reduction in cyanide
and high recyclability of the glycine. Overall, due to high cyanide unit
costs, the total reagent costs are projected to be reduced by over 70%.
The Bayan Airag mines are located in Mongolia where temperatures are regularly
sub-zero making the trial and forward commercial application of the technology
of interest to other cold climate applications globally.
Ivor Bryan, Chief Technology Officer of Draslovka Mining Solutions, commented:
"Working with the Bayan Airag team has been a fantastic collaboration and is
an exciting milestone for Draslovka. GlyCat's use in heap leaching
applications demonstrates equivalent or better recoveries and step change
reduction in operating costs. This provides opportunities for our clients to
extend mine life and convert uneconomic ores and wastes into viable metal
production opportunities. We look forward to expanding our strong relationship
with Bayan Airag as it considers other projects in its area of operations and
as a foundation for further applications in Mongolia."
Peter Thompson, Chief Executive Officer of Bayan Airag, added:
"At Bayan Airag where we often have challenges in cyanide supply and costs, we
saw the GlyCat process as an opportunity to reduce our reliance on cyanide and
to use a much more eco-friendly alternative that provides sustainability to
our Mongolian business and improved outcomes to the community in which we
work. It also gives us an advantage for when we encounter high levels of
copper in our gold-silver ore. We are proud that the Bayan Airag mine is the
first mine in Mongolia to use GlyCat and the first instance of commercial
implementation of GlyCat in a heap leach anywhere in the world."
ENDS
About Draslovka
Draslovka Holdings a.s. (Draslovka) is a global leader in cyanide-based
chemical specialties and agricultural chemicals including next-generation
fumigants and biocides. Utilising the company's significant expertise,
Draslovka develops and scales solutions which are vital for delivering
sustainable growth at pace. A private holding company based in the Czech
Republic, it is owned by four Czech families and has more than 100 years of
experience in hydrogen cyanide (HCN) production and HCN chemistry. The company
specializes in the production of fully synthetic and highly purified liquid
HCN, which undergoes further processing for application in a variety of
downstream products ranging from the mining through to agriculture sectors.
Through its scalable chemistry-based solutions, Draslovka aims to unlock
transformation and be the leading global player in the production of cyanides
for use in synthesis, mining, and industrial and agricultural applications,
with safety and environmental sustainability at the heart of all its
operations.
About Bayan Airag
Bayan Airag Exploration is a Mongolian mining company, operating since 2014 at
a rate of 1m tonnes of ore per year, and the first mining project operating in
Zavkhan province. Bayan Airag Exploration is committed to delivering
sustainable development to host communities through responsible mining,
protection of the environment and an unwavering focus on safety.The company
has implemented numerous projects to support and develop host communities,
including infrastructure, development of small businesses, livestock and
pasture land management, cultural heritage, education and community health.
Contacts
FTI Consulting
Viktor Pomichal / Ariadna D. Peretz
Tel: +44 (0) 7890 417764
Email: draslovka@fticonsulting.com (mailto:draslovka@fticonsulting.com)
Bayan Airag
Peter Thompson, CEO
Email: pthompson@bayanairag.com (mailto:pthompson@bayanairag.com)
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