中国工程科学2023，Vol.25Issue(6)：248-258,11.DOI:10.15302/J-SSCAE-2023.07.020
矿物浮选吸附平衡模型构建与应用:精准解析矿物表面离子/药剂特征吸附
Construction and Application of Mineral Flotation Adsorption Equilibrium Model:Accurately Analyze Ions/Reagents Adsorption Behavior on Mineral Surface
摘要
Abstract
The mineral flotation adsorption equilibrium model is a mathematical model to accurately describe ions/reagents adsorption equilibrium involved in mineral flotation.It is the first time to realize quantitative affinity analysis between mineral surface sites and flotation reagents.There is a lack of scientific explanation for the traditional flotation theory on the surface-active sites,and the adsorption capacity and equilibrium state of flotation reagents are also difficult to clarify,making new reagent design mainly based on empirical methods such as trial-and-error method and compound method.Besides,if selective adsorption,as the core mechanism of flotation,cannot be precisely predicted,the development of intelligent control on flotation process will be seriously limited.This study discussed in detail the construction principle of the mineral flotation adsorption equilibrium model,taking two flotation systems of hematite-quartz and diaspore-kaolinite as examples.The constants containing site density Ns,protonation/deprotonation equilibrium constants Kt1/Kt2,and reagent adsorption constant Kf can be deduced and verified successfully.Based on these constants,mineral surface electricity and ions/reagents adsorption behavior can be forecasted.Furthermore,a kind of kernel algorithm about the mineral flotation prediction system was created through Zeta potential tests and some other verification methods.Using this algorithm,the preliminary and accurate prediction of reagent adsorption on each mineral surface at different conditions can reflect its floatability trend to a certain extent,which helps to shorten the flotation technology development cycle.It is also of great significance in the study of mineral surface reagent adsorption mechanisms,flotation reagent molecular design,and flotation process optimization and intelligent control.关键词
矿物加工/浮选机理/矿物浮选吸附平衡模型/可浮性预测/矿物浮选特征常数Key words
mineral processing/flotation mechanism/mineral flotation adsorption equilibrium model/mineral floatability prediction/characteristic constant in mineral flotation分类
矿业与冶金引用本文复制引用
高雅,付心壮,韩海生,王丽,岳彤,孙伟..矿物浮选吸附平衡模型构建与应用:精准解析矿物表面离子/药剂特征吸附[J].中国工程科学,2023,25(6):248-258,11.基金项目
国家自然科学基金项目(U1704252,52104286) National Natural Science Foundation project(U1704252,52104286) （U1704252,52104286）
