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Gold roasting is a process, applicable to refractory ores and concentrates that contain sulphide sulphur, organic carbon, and potentially arsenic.
Removal of these compounds is necessary to achieve high gold recovery (>90%) during cyanide leaching.
The temperature during the roasting process is sustained by the introduction of oxygen and the heat value of the ore, so the carbon and sulphur content. To keep the process in the roaster stable, these concentrations need to be known. SpectraFlow can directly analyse and distinguish between CO3 and TCM as well as between S2- and S(total). Inorganic components like arsenic can be analysed as well.
Integration of the analyser in the plant environment:
A review from the trusted partner
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