African Oxygen Limited (Afrox), the leading gases provider in sub-Saharan Africa, has developed a unique and fully integrated end-to-end product service offering (PSO) for the global gold mining industry to optimise metallurgical gold leach using oxygen (O2).
Called Goldox™, the PSO provides: an O2 demand test programme for specifying the O2 demand requirements; the supply of oxygen using Linde Engineering’s proprietary state-of-the-art onsite Vacuum Pressure Swing Adsorption (VPSA) technology; supply, install and commission of the O2 reticulation network, flow control panels with safety interlocks and the O2 injection system; on-going maintenance and downstream O2 control management if required; and provision of a highly flexible commercial structure for the supply of O2 to the mine over an agreed period.
“The supply of oxygen to the gold leach needs to be supplemented by an efficient injection system to ensure optimum oxygen utilisation in the slurry, otherwise the benefit of the oxygen injection may be limited,” explains Rob de Zoeten, Metallurgist at Afrox.
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