Optimization of Low-Grade Cassiterite Flotation by Response Surface Methodology
A flotation experiment was conducted for a low-grade fine-grained cassiterite from Yunnan.The median dosage of reagent was determined by a single-factor test,and then the reagent dosage for rougher flotation process of cassiterite was optimized by response surface methodology as follows:285 g/t of activator(KT-51),13 g/t of inhibitor(OL-1C)and 873 g/t of compound collector(YK-Sn+SN-705).A verification test on flotation with the addition of those agents yielded a tin rougher concentrate grading 1.460％Sn at 74.44％recovery,which was close to the results predicted by response surface methodology.In order to further explore the effect,a closed-circuit test was conducted,resulting in the tin concentrate grading 5.45％Sn at 66.70％recovery.It is shown that efficient recovery of low-grade cassiterite resources can be actualized.
万方数据
维普
