Test on Priority Selection Flocculant of Flocculation and Sedimentation of Copper Tailings Slurry in Ecuador
In order to improve the treatment efficiency of thickener in a copper mine of Ecuador,re-duce the transportation cost and reduce the phenomenon of muddy running,the flocculation sedimentation test of tailings was carried out.The results show that when the slurry concentration is 16.67%,the flocculant dosage is 20 g/t,and the flocculant BK816F is added,the sedimentation rate of the tailings slurry is the fast-est,and the height of the clear water layer can reach 15 cm after 80 s of sedimentation.When the slurry con-centration is 30%,the sedimentation rate of tailings slurry is generally accelerated with the increase of floc-culant dosage,and the effect of BK816F is the most obvious,which can achieve better sedimentation effect in a lower dosage and a shorter time.The viscosity of BK816F is the lowest when the mass concentration of flocculant solution is all 0.1%.All the performance indexes show that BK816F can be used as an efficient flocculant for the copper mine.
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