Abstract:1,3,5-Triazinane-2,4,6-trithione (TMT) was used for the first time as a sulfidation agent in the flotation of smithsonite. Results showed that 80.5% recovery rate could be obtained in the presence of TMT (5 × 10 -5 mol/L) and butyl xanthate (5 × 10 -4 mol/L). However, the recovery rate was only 59.4% when sodium sulfide (5 × 10 -5 mol/L) was used. Micro-flotation test and contact angle measurement showed that TMT activation was better than sodium sulfide activation. Besides, the contact angle increased from 32… Show more
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