The free gold that remains undissolved is separated by means of gravity separation methods. After gravity separation, additional comminution is carried out, after which the sulphide minerals are decomposed and the gold containing solution or residue is routed to the concentrate leaching circuit.
High sulfide gold ore refers to a certain gold ore with 20% 30% of gold wrapped by sulfide . Because most of the gold in high sulfide gold ore exists in the form of sulfide encapsulated gold, when using direct leaching process, the consumption of gold leaching agent and cost of gold leaching production will increase, and gold processing efficiency is not good.
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The possibility of dry processing using a Knelson Concentrator has been shown to have potential by Greenwood et al. , with optimizing and modelling of dry Knelson process having recently ...
A gravityflotation process circuit is usually used to separate gold from a complex sulfide ore. The implementation of a KC gravity circuit before the flotation process can effectively separate and recover the free gold inevitably lost with the tailings and reduce the pumping requirements and reagent consumption .