矿产保护与利用2025，Vol.45Issue(2)：108-115,8.DOI:10.13779/j.cnki.issn1001-0076.2025.02.009
镜铁矿、绿泥石表面Fe3+、Mg2+溶出规律及对可浮性的影响
Dissolution Patterns of Fe3+and Mg2+from the Surfaces of Specularite and Chlorite and Their Effects on Floatability
摘要
Abstract
During the separation process of specularite/chlorite,the dissolution of metal ions on the mineral surface can affect the floatability of the minerals.Using ICP,conductivity measurements,and single mineral flotation tests,the dissolution patterns of Fe3+and Mg2+ions from the surfaces of specularite and chlorite and their effect on floatability were investigated y.Additionally,by combining Zeta potential measurements and lgc-pH analysis,the inhibition mechanisms of Fe3+and Mg2+on specularite and chlorite were studied.The results showed that Fe3+and Mg2+exhibited a trend of increasing followed by decreasing with dissolution time,and the dissolution amount of Fe3+from the chlorite surface was significantly higher than that of Fe3+.In addition,the total ion concentration in the solution decreased continuously as the pH of the solution increased.Both Fe3+and Mg2+had certain inhibitory effect on specularite and chlorite,but Fe3+had a stronger inhibitory effect.Under conditions where the Fe3+concentration was 3.11 mg/L and pH=6,the recovery rates of specularite and chlorite decreased to 10.23%and 13.35%,respectively.Fe3+primarily inhibits minerals through the adsorption of hydrophilic Fe(OH)3 precipitates,while Mg2+mainly increases the electrostatic repulsion between mineral particles and DDA through adsorption in the form of Mg2+,resulting in decreased mineral floatability.关键词
镜铁矿/绿泥石/表面离子/浮选/抑制Key words
specularite/chlorite/surface ion/flotation/inhibition分类
矿山工程引用本文复制引用
陈洲,于茜,杨婷,张鹏鹏,李明阳..镜铁矿、绿泥石表面Fe3+、Mg2+溶出规律及对可浮性的影响[J].矿产保护与利用,2025,45(2):108-115,8.基金项目
安徽省高等学校科学研究重点项目(编号:2022AH050305) （编号:2022AH050305）
金属矿山安全与健康国家重点实验室开放课题基金项目(编号:2022-JSKSSYS-07) （编号:2022-JSKSSYS-07）
安徽省优秀青年教师培育项目(YQZD2023027) （YQZD2023027）
