According to Mining News Pro - PRESS RELEASE: The first gold is the result of early industry trials
of CSIRO`s `going for gold` technology and was produced in partnership
with small gold miner Eco Minerals Research at a demonstration plant in
the Western Australian goldfields town of Menzies.
Cyanide is used in more than 90% of global gold production, but
producers are facing increasingly tough regulations that prevent or
restrict its use due to environmental and health concerns.
In response to recent spills of toxic cyanide, several regional
agencies in the US, South America and Europe have banned the use of
cyanide for gold extraction.
The technology replaces cyanide with thiosulphate, a non-toxic alternative, and a simple process flowsheet.
CSIRO stated that it could be a game-changer for Eco Minerals
Research, which has its sights set on becoming the first Australian
producer to go cyanide-free.
Paul Hanna, managing director at Eco Minerals Research, said: "The
first gold is a major milestone in our progress towards becoming one of
the world`s first green gold producers. In close collaboration with
CSIRO we`ve gone through the design, engineering and fabrication stages
and set up a processing facility in Menzies, delivering the first gold
pour in just 10 months, which is a fantastic achievement."
The CSIRO research team behind the technology has already had
commercial success with another tailored cyanide-free gold solution
developed with Barrick Gold specifically for its Goldstrike mine in
Nevada, US, where it has been used for nearly four years to maintain
production rates.
The A$2.1 million (US$1.5 million) demonstration project was made
possible through A$860,000 in funding from the Science and Industry
Endowment fund (SIEF) and an Australian Government Innovation
Connections grant.
Dr Larry Marshall, chief executive of CSIRO, commented: "Science
enabling industry and environment to be partners not competitors,
exactly as envisioned in our market vision - turning commodities into
higher value, uniquely Australian products. It has been accelerated
through CSIRO`s ON programme, and could be a game-changer for small gold
producers or those looking to get ahead of increasing market demand for
greener commodities. Early industry trials like this are critical to
innovation and go to the heart of CSIRO`s mission to tackle big,
real-world challenges and unlock a better future for everyone."
To reduce economic barriers to entry for small producers and help
turn stranded gold deposits into production, CSIRO`s vision is to
deliver the alternative process technology direct to mine sites via a
mobile service.
A typical cyanide-based processing plant costs around A$30 million,
whereas the new technology has a lower capital investment costing as
little as A$2-2.5 million to build.