Experimental and Practical Research on Reverse Flotation Desulfurization of a High Sulfur Bauxite Mine in Guizhou
A"one coarse,two fine,and three sweep"reverse flotation desulfurization experiment was conducted on a high-grade bauxite with high sulfur and low silicon in a mining area in Guizhou.The results showed that when the grinding fineness was-0.074 mm with a particle size ratio of 80％,the dosage of sodium carbonate was 1 500 g/t,the dosage of copper sulfate was 110 g/t,the dosage of butyl xanthate was 250 g/t,and the dosage of No.2 pine alcohol oil was 150 g/t,an aluminum concentrate with a w(S)content of 0.29％was obtained,and the desulfurization rate was 94.76％,obtaining a sulfur concentrate with w(Al2O3)of 0.86％.Industrial practice has shown that the entire production process has no industrial pollution/wastewater discharge,no need for tailings ponds,minimal dust production,and controllable environmental risks.The experimental and practical application results can provide reference for the development and utilization of such high sulfur bauxite resources.
high sulfur bauxitereverse flotationdesulfurizationdesulfurization rate
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