有色金属科学与工程2025，Vol.16Issue(5)：791-797,7.DOI:10.13264/j.cnki.ysjskx.2025.05.013
油酸钠体系下PBTCA对氟碳铈矿与萤石的浮选分离及机理研究
Study on flotation separation and mechanism of bastnaesite and fluorite by PBTCA in sodium oleate system
摘要
Abstract
This paper studied the feasibility of separating bastnaesite from fluorite using PBTCA(2-phosphono-1,2,4-butanetricarboxylic acid)as a depressant in the presence of sodium oleate collectors.The single mineral flotation results indicate that the sodium oleate collector exhibits good collecting for both bastnaesite and fluorite.At the same time,PBTCA can selectively inhibit fluorite flotation without affecting bastnaesite flotation.The artificial mixed mineral flotation tests reveal that the grade and recovery of CeO are 56.58%and over 80%in the concentrate in the PBTCA and sodium oleate reagent scheme,achieving the flotation separation between bastnaesite and fluorite.Zeta potential results demonstrate that the interaction of PBTCA with fluorite surface is stronger than that of PBTCA with bastnaesite,selectively inhibiting the adsorption of the sodium oleate collector on the bastnaesite surface.XPS analysis indicates that PBTCA achieves selective inhibition by chemically interacting with Ca2+on the surface of fluorite through its carboxyl and phosphonate groups in its molecular structure,thus realizing the selective inhibition of fluorite in the bastnaesite flotation.关键词
氟碳铈矿/萤石/PBTCA/浮选分离/化学吸附Key words
bastnaesite/fluorite/PBTCA/flotation separation/chemical adsorption分类
矿业与冶金引用本文复制引用
李婷,刘诚,杨思原..油酸钠体系下PBTCA对氟碳铈矿与萤石的浮选分离及机理研究[J].有色金属科学与工程,2025,16(5):791-797,7.基金项目
国家重点研发计划资助项目(2022YFC2905800) （2022YFC2905800）
