矿产保护与利用Issue(2)：57-62,6.DOI:10.13779/j.cnki.issn1001-0076.2018.02.011
中低品位硅钙质磷矿石双反浮选试验研究
Study on Double Reverse Flotation of a Low Grade Siliceous-calcareous Phosphate Ore
摘要
Abstract
In this paper,the effect of the grinding fineness and the reagent regime on the flotation of low grade calcareous-siliceous phosphate in Guizhou was investigated by using the collector AY and GJBW. The results showed that when the grinding fineness was 78.08% below 0.075 mm,the optimal reagent regime was 7.5 kg/t mixed acid(sulphuric acid and phosphoric acid volume ratio of 2:1) with 0.3 kg/t GJBW for roughing,and 7.5 kg/t mixed acid with 0.4 kg/t AY for con-centrating. Under these conditions with the double reverse flotation test procedure, final flotation phosphate concentrate with phosphorus pentoxide grade of 30.27% and recovery rate of 81.32% was obtained. The results of orthogonal tests showed that the interaction among mixed acid,GJBW and AY had little effect on the concentrate. The results of FTIR analysis showed that the adsorption of AY onto quartz was mainly physical adsorption.关键词
硅钙质磷矿石/白云石/石英/双反浮选/捕收剂/物理吸附Key words
siliceous-calcareous phosphate ore/dolomite/quartz/double reverse flotation/col-lector/physical adsorption分类
矿业与冶金引用本文复制引用
罗金洋,张覃,李龙江..中低品位硅钙质磷矿石双反浮选试验研究[J].矿产保护与利用,2018,(2):57-62,6.基金项目
贵州省科学技术基金(黔科合JZ字[2014]2009号) （黔科合JZ字[2014]2009号）
贵州省重大专项[(2011)6023号] （2011）
