Experimental Study on Reducing Carbon Content in Zinc Concentrate of Complex Lead-Zinc Ore
As for a zinc concentrate collected from mineral processing of a lead-zinc ore,an experimental study was carried out to reduce the carbon content therein.With soluble starch as the carbon depressant,a concentrate with Zn grade of 48.71%,carbon content of 0.86%and Zn recovery of 90.28%was obtained from a closed-circuit test.Compared with the on-site indicators,both the Zn grade and recovery of concentrate are increased by using this new process,while the carbon content therein is reduced to less than 1%,showing a remarkable carbon-reduction effect.
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