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Greetings everyone,
I am working with a project involving a refractory gold ore where arsenopyrite and pyrite carry disseminated, sub-microscopic gold particles. There is little (only a few percent) free gold in the ore.
Currently, the sulfide flotation process uses PAX to float pyrite and arsenopyrite, but due to the increased procurement risk of xanthates, an alternative for PAX should be discovered. The aim is to either fully or partially replace PAX with some other collector (e.g. dithiophosphate-based collectors). Would there be anyone in this forum who has dealt with a similar project? I would really appreciate some good discussion about the replacement of PAX, for according to my knowledge, it has never been fully replaced by some other collector in a sulfide ore gold operation.
Looking forward to some interesting discussion!
BR,
newmet94