RE:RE:Metallurgy!
Gangsterme wrote: Real interested how this question is answered......as it is very unusual...ie I have no idea what this has to do with anything that is pertinent or logica,.
What are you saying? Metallurgy is extremely important to ensure you have a mineral deposit that can actually be mined. I don't foresee any issues at Queensway because the metallurgy should be very similar to Fosterville. I suspect that they will use the same BIOX Process that has been so successful at the Fosterville mine. This will undoubtedly be the process they use at Queensway. It's good at removing gold from pyrite, arsenopyrite and antimony which are found in both Fosterville and Queensway. Also, this process can handle a wide range of grades which will be valuable with this type of gold system. See below for details.
Fosterville's modern sulphide treatment plant is one of the world's leading BIOX systems and has achieved record recoveries.
For the past 12 years, the Fosterville BIOX plant has proven itself extremely easy to operate and maintain. BIOX robustly treats the variable orebody sulphur grades and produces consistently high recoveries.
Outotec BIOX® Process
The Outotec BIOX process was developed for the pre-treatment of refractory ores and concentrates ahead of conventional cyanide leach for gold recovery. The gold in these ores is encapsulated in sulphide minerals such as pyrite, arsenopyrite and pyrrhotite, thus preventing the gold from being leached by cyanide. The BIOX process destroys the sulphide minerals and exposes the gold for subsequent cyanidation, thereby increasing the overall gold recovery that can be achieved.
BIOX advantages
The plant design offers a low capital cost solution, reliable process performance and the application of robust, energy-efficient equipment. The BIOX process can operate over a wide range of feedstock characteristics and can be customized to fit specific project requirements. The technology is scalable and simple to operate, using a modular design. The Outotec BIOX process has been in commercial operation for over 30 years with 13 successful plants commissioned worldwide. To date, over 22 million ounces of gold have been produced through this process.
https://www.mogroup.com/insights/case-studies/mining-and-metals/robust-low-cost-biox-process-at-fosterville-gold-mine/