典型文献
Anti-swelling mechanism of DMDACC on weathered crust elution-deposited rare earth ore
文献摘要：
In order to inhibit the swelling of the clay minerals in the in-situ leaching process of weathered crust elution-deposited rare earth ores(WCE-DREO),diallyl dimethyl ammonium chloride(DMDACC)was introduced as an anti-swelling agent and combined with(NH4)2SO4 as a novel composite leaching agent.It can be found that the novel composite leaching agent exhibits a good anti-swelling performance and leaching capacity of rare earth,and has great potential on the actual exploitation of WCE-DREO.The anti-swelling mechanism of DMDACC was studied by characterization analysis.The results show that DMDACC with positive charges can be adsorbed on the clay particles by the electrostatic attraction and hydrogen bonds,and neutralize the negative charge of the clay particles.The double electrical layers are suppressed and the repulsion force between clay sheets decreases.It causes the clay particles prone to aggregate.Moreover,DMDACC can enter the interlayer and expel out the water molecules in interlayer.The interlayer spacing is decreased and the hydration swelling of the clay particles is weakened.It can provide a theoretical basis for the development of novel anti-swelling agents.
文献关键词：
中图分类号：
作者姓名：
Zhengyan He;Rong Zhang;Aoyang Sha;Qin Zuo;Zhigao Xu;Ming Wu;Ru'an Chi
作者机构：
Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission,College of Resources and Environmental Science,South-Central University for Nationalities,Wuhan 430074,China;Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430073,China
文献出处：
引用格式：
[1]Zhengyan He;Rong Zhang;Aoyang Sha;Qin Zuo;Zhigao Xu;Ming Wu;Ru'an Chi-.Anti-swelling mechanism of DMDACC on weathered crust elution-deposited rare earth ore)[J].稀土学报（英文版）,2022(11):1803-1811
A类：
DMDACC,DREO,expel
B类：
Anti,swelling,mechanism,weathered,crust,elution,deposited,rare,earth,In,order,inhibit,clay,minerals,situ,leaching,process,ores,WCE,diallyl,dimethyl,ammonium,chloride,was,introduced,anti,combined,NH4,2SO4,novel,composite,It,can,found,that,exhibits,good,performance,capacity,has,great,potential,actual,exploitation,studied,by,characterization,analysis,results,show,positive,charges,adsorbed,particles,electrostatic,attraction,hydrogen,bonds,neutralize,negative,double,electrical,layers,suppressed,repulsion,force,between,sheets,decreases,causes,prone,aggregate,Moreover,enter,interlayer,out,water,molecules,spacing,decreased,hydration,weakened,provide,theoretical,basis,development,agents
AB值：
0.485085
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
