Swelling inhibition and infiltration promotion mechanism of polyethyleneimine

Hui-fang Yang, Ao-yang Sha,Zheng-yan He,Ming Wu,Jun Qu,Chen-jie Wu,Zhi-gao Xu,Ru-an Chi

Journal of Central South University（2024）

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摘要

In order to solve landslides and slow infiltration rate in in-situ leaching process of weathered crust elution-deposited rare earth ore (WCE-DREO), the swelling inhibition performance and mechanism of polyethyleneimine (PEI) on montmorillonite (MMT) and WCE-DREO were investigated. The swelling inhibition effect on MMT and WCE-DREO increased gradually with increasing concentration of PEI. The leaching efficiency of rare earths was increased from 93.94

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关键词

polyethyleneimine,montmorillonite,weathered crust elution-deposited rare earth ore,swelling inhibition,infiltration promotion,聚乙烯亚胺,蒙脱石,风化壳淋积型稀土矿,抑膨,促渗

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