none

GOING FOR GOLD WITHOUT CYANIDE

28-08-2018
by 
in 

CSIRO has produced Australia’s first gold using a novel nontoxic chemical process that can provide an alternative to cyanide and mercury to extract the precious metal. The trial was conducted with gold miner Eco Minerals Research at a demonstration plant in Menzies, Western Australia.

Cyanide is most commonly used in global gold production, but the toxicity of the chemical is leading to ever more-stringent regulations. And several regional agencies in the USA, South America and Europe have banned the use of cyanide for gold extraction.

The new CSIRO process uses nontoxic thiosulphate in place of cyanide, with a simple process flowsheet that means the costs of setting up a process plant are dramatically reduced. A typical cyanide-based processing plant costs around $30 million, whereas the new technology has a lower capital investment costing as little as $2-2.5 million to build.

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.

“The first gold is a major milestone in our progress towards becoming one of the world’s first green gold producers,” says Eco Minerals Research Managing Director Paul Hanna.

“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.”

 

Related news & editorials

  1. 14.11.2018
    14.11.2018
    by      In
    It’s less than a year since Lapp Australia started trading, but the company has swiftly established itself in the local market, with significant penetration in sectors such as food and beverage, manufacturing, solar, sound and stage production, electrical contracting, machine building and... Read More
  2. 12.11.2018
    12.11.2018
    by      In
    Energy Vault has developed a novel solution to storage for renewable energy plants that involves neither batteries nor water.
    The Energy Vault system is based on the fundamental physics of potential and kinetic energy, and uses a proprietary, cloud-based software platform to operate a newly... Read More
  3. 07.11.2018
    07.11.2018
    by      In
    With a combination of its industry-leading fans and energy-efficient lighting products, Big Ass is improving working conditions in Australia and around the globe.
    Blazing Queensland temperatures and humidity were creating uncomfortable working conditions at XL Service Bodies, an industry-leading... Read More
  4. 07.11.2018
    07.11.2018
    by      In
    ABB has thrown its weight behind the OPC Foundation in its bid to define the worldwide industrial interoperability standard. The new Open Platform Communication Unified Architecture (OPC UA) standard has the potential to enable industrial players to unlock the full potential of Industry 4.0.
    OPC UA... Read More