Adsorption and Flocculation of Carbonate Mineral Particles in Presence of Triblock Copolymers EO-PO
The adsorption and stabilization of mineral dispersed systems by using Pluronic copolymers with different molecular weights and EO content has been studied.The role of sequential adsorption of EO-PO copolymers and cationic surfactant (CTAB) on the carbonate particle properties and in determining the stability of their suspension was studied with particular attention to the conformation of the polymer at the solid-liquid interface.The purpose of this work was to investigate the flocculation phenomena,influence of polymer molecular size on stability of suspensions of magnesite and dolomite and the effect of addition mode of polymer and surfactant.The suspension stability measurements and the determination of sedimentation speed were carried out using an optical analyser (Turbiscan).In most of investigated cases,the biggest floccs and the fastest sedimentation were found for low concentrations of copolymers.
Adsorption isotherms Flocculation Triblock copolymers Interactions of surfactants
E.Szelag Z.Sadowski
Department of Chemical Engineering,Wroclaw University of Technology,Wroclaw,Poland
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
4386-4395
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）