To recover the copper resource therein,mineral processing of a slag-beneficiated copper sulfide ore from Congo(Kinshasa)with 9.62％Cu was investigated.A regrinding and reseparation flotation process was proposed based on multi-element chemical analysis and mineral occurrence analysis.It is found that with this process,a copper concentrates with Cu grade of 25.16％and Cu recovery of 90.67％can be collected.
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