有色金属科学与工程2024，Vol.15Issue(2)：285-292,8.DOI:10.13264/j.cnki.ysjskx.2024.02.015
磁铁矿反浮选脱硅提纯有机硅捕收剂TAS550应用与机理
Application and mechanism of organosilicon collector TAS550 for desilication and purification of magnetite by reverse flotation
摘要
Abstract
This paper studied the desilication and purification of magnetite reverse flotation using an organosilicon compound benzylaminoethylaminopropyldimethoxymethylsilane(TAS550)as a collector,and the action mechanism between the collector and minerals by FTIR analysis,contact angle,determination of adsorbing capacity,determination of Zeta potential.As shown by the result of the flotation study,TAS550 displayed excellent collection performance.Under the conditions of pH 8.0 and 2×10-4 mol/L TAS550,the performance in collecting quartz and magnetite reached the optimal level.Their recovery rates were 98.21%and 79.13%,respectively.Using 400 mg/L starch as an inhibitor could effectively inhibit magnetite and had little impact on the recovery of quartz.The tests on the reverse flotation of quartz and magnetite under such a condition reached ideal indicators.The experiments on the determination of FTIR,Zeta potential,adsorbing capacity,and contact angle indicated the collector TAS550 was physical adsorption on the surface of quartz and effectively improved the hydrophobicity of the quartz surface.关键词
捕收剂/反浮选/磁铁矿脱硅/浮选药剂Key words
collector/reverse flotation/magnetite desiliconisation/flotation reagent分类
矿业与冶金引用本文复制引用
毛灵瀚,余新阳,魏新安,谢鸿辉,陈树华..磁铁矿反浮选脱硅提纯有机硅捕收剂TAS550应用与机理[J].有色金属科学与工程,2024,15(2):285-292,8.基金项目
国家自然科学基金资助项目(52264023,52174249) （52264023,52174249）
江西省"双高工程"资助项目([2022]223) （[2022]223）
