苯丙烯基羟肟酸捕收剂浮选某萤石矿试验研究  

Experimental Study on Flotation of a Fluorite Ore with Phenylpropenyl Hydroxamic Acid Collector

作　　者：梁毅 姚旗升 谢鸿辉 余新阳[2,3] Liang Yi;Yao Qisheng;Xie Honghui;Yu Xinyang(Henan First Geological and Mineral Investigation Institute Co.,Ltd.,Luoyang,He’nan 471023;School of Resource and Environment Engineering,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000;Jiangxi Provincial Key Laboratory of Mining Engineering,Ganzhou,Jiangxi 341000)

机构地区：[1]河南省第一地质矿产调查院有限公司,河南洛阳471023 [2]江西理工大学资源与环境工程学院,江西赣州341000 [3]江西省矿业工程重点实验室,江西赣州341000

出　　处：《非金属矿》2024年第2期63-67,共5页Non-Metallic Mines

基　　金：国家自然科学基金(52264023)。

摘　　要：为解决萤石矿浮选难分离,浮选回收率不高的问题,研究了苯丙烯基羟肟酸(PHA)作为萤石矿捕收剂的浮选特性及机理,通过单矿物及实际矿试验研究了其浮选性能。结果表明,PHA具有优异的选择捕收性能,在pH为8,PHA用量为15 mg/L,甲基异丁基甲醇(MIBC)用量为20 mg/L的条件下,萤石、白云石和方解石的回收率分别为91%、24.2%和41%。采用“5精2扫”的闭路流程,得到CaF_(2)品位为97.63%、回收率为88.58%的萤石精矿。通过zeta电位和傅里叶红外光谱(FTIR)测试分析了PHA与萤石、白云石和方解石的的吸附机理,PHA可通过化学吸附选择吸附在萤石表面。In order to solve the problems of difficult separation and low flotation recovery of fluorite ore,the flotation properties and mechanism of phenylacryl hydroxamic acid(PHA)as a fluorite collector were studied,and its flotation performance was investigated by single mineral and actual mixed ore experiments.The results showed that when pH was 8,the dosage of PHA was 15 mg/L and the dosage of MIBC was 20 mg/L,the recoveries of fluorite,dolomite and calcite were 91%,24.2%and 41%,respectively.The CaF_(2) grade of fluorite concentrate was 97.63%and the recovery was 88.58%by using the closed-circuit process of"five stages of cleaning and two stages of scavening".The adsorption mechanism of PHA with fluorite,dolomite and calcite was analyzed by zeta potential and FTIR test,PHA could selectively adsorb by chemisorption.

关 键 词：捕收剂 苯丙烯基羟肟酸 萤石 白云石 方解石 

分 类 号：TD97[矿业工程—选矿]