Experimental study on flotation desilication of a sedimentary high-iron bauxite in Yunnan province
A flotation desilication experiment was conducted on the sedimentary high-iron diaspore bauxite in Yunnan.The influence of grinding fine-ness,slurry pH value and collector dosage on flotation desilication efficiency was investigated.Under the test conditions of grinding fineness of 90％(per-centage of-0.074 mm grain size),pH value of 9.5 and collector dosage of 700 g/t,a closed circuit experiment was conducted using"one rough selec-tion,two fine selections,and one sweeping".The flotation concentrate yield was 82.30％,the alumina content was 57.26％,the silicon dioxide content was 4.23％,the aluminum silicon ratio of the concentrate was 13.54,and the recovery rate of alumina was 89.03％,with obvious flotation effect a-chieved as well.
万方数据
维普
