Investigating novel options for dealing with carbonaceous preg-robbing ores.
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Christian first of all. After that, I am a lover of most branches of science and pretend to be an artist on occasions as well (Instagram @rjsymes_art). Lived on a farm most of my life and grew up gardening and brewing weird chemical concoctions whenever I got the chance.... it's a wonder I'm still alive! Always trying to learn something new.
June 2007 - present
Fosterville Gold Mine
- Developmental Metallurgist
- Research and development in the areas of mineral flotation as well as bacterial oxidation and extractive metallurgy (gold).
The Fosterville Goldmine in Victoria Australia employs the BIOX® Process to liberate gold from its sulphidic flotation concentrate through bacterial oxidation. Gold occurrence is primarily as submicron particles in pyrite and arsenopyrite and has been described as being in ‘solid solution’ and therefore not amenable to direct cyanidation. Once libe...
The Fosterville Goldmine in Victoria employs bacterial oxidation (BIOX® Process) to liberate gold from its flotation concentrate. Gold occurrence is primarily as submicron particles in pyrite and arsenopyrite and has been described as being in ‘solid solution’ and therefore not amenable to direct cyanidation even with fine grinding. Once liberated...
I've been using sodium dithionite as a reducing agent for silver nanoparticle generation.
It also appears to work for copper.
However, I am trying to cap the nanoparticles with various molecules and it occurred to me that oxidation products of the dithionite might be interfering.
Has any had any experience with using dithionite for this?