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

作　　者：彭李情 罗惠华[1] 李封元 阮耀阳[1] 肖庆渝 刘闵新 Peng Liqing;Luo Huihua;Li Fengyuan;Ruan Yaoyang;Xiao Qingyu;Liu Minxin(School of Resources&Safety Engineering,Wuhan Institute of Technology,Wuhan,Hubei 430074)

机构地区：[1]武汉工程大学资源与安全工程学院,湖北武汉430074

出　　处：《非金属矿》2024年第4期65-69,共5页Non-Metallic Mines

基　　金：湖北省揭榜制项目(2021BEC029);湖北省技术创新重大项目(2018ACA153,2022ACA004);武汉工程大学研究生教育创新基金项目(CX2023188)。

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Na_(2)CO_(3)作为p H调整剂,水玻璃和NO-2作为正浮选抑制剂,H_(2)SO_(4)、H_(3)PO_(4)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P_(2)O_(5)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P_(2)O_(5)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。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 temperature of 40℃,Na_(2)CO_(3) was used as pH regulator,sodium silicate and NO-2 were used as positive flotation inhibitors,H_(2)SO_(4) and H_(3)PO_(4) as reverse flotation regulator,and high iodine fatty acid soap as collector.The flotation index of phosphorus concentrate with P_(2)O_(5) 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 P_(2)O_(5) 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 

分 类 号：TD97[矿业工程—选矿]