Exploring the separation mechanism of Gemini surfactant in scheelite froth flotation at low temperatures: Surface characterization, DFT calculations and kinetic simulations

Chenquan Ni,Yu Xie,Chang Liu,Zhengwei Han,Hairong Shen, Wei Ran,Weiqi Xie, Yuting Liang

Separation and Purification Technology（2023）

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摘要

•In the range of 0 °C to 25 °C, HDDA has a stronger collecting ability to scheelite than DDA.•HDDA exhibited excellent selectivity for calcite even at 0 °C.•No chemical interactions between HDDA molecules and scheelite or calcite clusters.•The interaction of Gemini surfactant on scheelite surface is electrostatic adsorption.

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关键词

Amine-typed Gemini surfactant,Low-temperature,Scheelite,Calcite,Flotation

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