高碘值脂肪酸皂对磷矿浮选性能及机理研究
Study on Floatability and Mechanism of Fatty Acid Soap with High Iodine Value on Phosphate Rock
彭李情 1罗惠华 1李封元 1阮耀阳 1肖庆渝 1刘闵新1
作者信息
- 1. 武汉工程大学 资源与安全工程学院,湖北 武汉 430074
- 折叠
摘要
为研究高碘值脂肪酸皂捕收剂正反浮选富集低品位胶磷矿性能,以湖北某胶磷矿为试验对象,在磨矿细度为-0.074 mm占 96.77%,矿浆温度40℃下,以Na2CO3 作为pH调整剂,水玻璃和NO-2作为正浮选抑制剂,H2SO4、H3PO4 作为反浮选调整剂,以高碘值脂肪酸皂作为捕收剂,通过正浮选1粗1精1扫与反浮选1粗2扫闭路试验,获得磷精矿P2O5 品位为30.32%,回收率为83.45%的浮选指标.结果表明,在正反浮选中使用高碘值脂肪酸皂作为捕收剂,能有效提高磷精矿的品位,磷矿P2O5 品位从22.11%提至30.32%,高碘值脂肪酸皂具有较好的正反浮选性能.
Abstract
In order to study the positive and reverse flotation of cotton oil fatty acid soap as a collector to enrich the low-grade collophane,a test was carried out using the collophane in Hubei Province as an object.Under the grinding fineness of-0.074 mm accounting for 96.77%and pulp tem-perature of 40℃,Na2CO3 was used as pH regulator,sodium silicate and NO-2 were used as positive flotation inhibitors,H2SO4 and H3PO4 as reverse flotation regulator,and high iodine fatty acid soap as collector.The flotation index of phosphorus concentrate with P2O5 grade of 30.32%and recovery rate of 83.45%was obtained through the closed-circuit process of one roughing,one cleaning and one scavenging in positive flotation and one roughing and two scavengings in reverse flotation.The results show that the use of cotton oil fatty acid soap as a collector in positive and reverse flotation can effectively improve the P2O5 grade of phosphate concentrate from 22.11%to 30.32%.Cotton oil fatty acid soap has better positive and reverse flotation performance.
关键词
中低品位磷矿/正反浮选/脂肪酸皂捕收剂/复配捕收剂/溶液化学/浮选机理Key words
middle-low grade collophane/positive and reverse flotation/cotton oil fatty acid soap collector/compound collector/solution chemistry/flotation mechanism引用本文复制引用
基金项目
湖北省揭榜制项目(2021BEC029)
湖北省技术创新重大项目(2018ACA153)
湖北省技术创新重大项目(2022ACA004)
武汉工程大学研究生教育创新基金项目(CX2023188)
出版年
2024
NETL
NSTL
万方数据