Study on industrial optimization of copper-lead separation of secondary copper ores in Xizang
A secondary copper ore in Xizang is mixed copper-lead ore,with copper primarily in the form of chal-cocite and lead in the form of galena.Experimental exploration revealed that separating copper and lead in the result-ing concentrate from this ore is challenging.Therefore,a flotation process prioritizing copper separation followed by lead separation was determined to be optimal.In the experimental process,inhibitors YS02 and YS04 effectively sup-pressed galena,while the highly selective collector BS09 yielded copper concentrates with qualified lead grades.Ulti-mately,under the conditions of a grinding fineness of-0.074 mm accounting for 65％,a copper separation process of once roughing and three times scavenging,and a lead separation process of once roughing,three times scavenging,and three times cleaning,the experiment achieved a copper grade of 24.63％and a copper recovery rate of 81.05％for copper concentrates,as well as a lead grade of 45.59％and a lead recovery rate of 81.32％for lead concentrates.The experimental indicators are considered ideal.
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