岩石力学与工程学报排版格式与论文书写要求-有色金属科学与工程
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>>>>>岩石力學與工程學報排版格式與論文書寫要求-有色
金屬科學與工程
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原状和重塑离子型稀土矿体的孔径分布特征王洪丁1a,王观石1b,邱高磊1a,罗嗣海1a(1.江西理工大学,a.建筑与测绘工程学院,b.工程研究院,江西赣州341000摘要:为获得离子型稀土矿原状矿体和重塑矿体的孔径分布特性,利用张力计对赣南典型的离子型稀土矿体进行了现场和室内的土-水特征曲线测试试验,依据拟合得到的土-水特征曲线计算原状矿体和重塑矿体的孔径分布。研究发现:
原状矿体的比表面积为1.313m2/g,累积孔隙总体积0.2244m3/g,重塑矿体的比表面积为4.205m2/g,累积孔隙总体积0.2365m3/g。
重塑过程改变了原矿的孔径分布,使矿体的比表面积增加了3.2倍,但有效孔隙总体积变化不明显,使得重塑矿体浸润效果更好,而渗透性有所降低。关键词:
离子型稀土矿;土-水特征曲线;孔径分布;孔隙体积;比表面积中图分类号:
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1/16
>>>>Poresizedistributioncharacteristicofundisturbedandremouldedsoilofion-adsorptionrare-earthoreWANGHongding1a,WANGGuanshi1b,QIUGaolei1a,LUOSihai1a(1.JiangxiUniversityofScienceandTechnology,a.SchoolofArchitecturalandSurveyingMappingEngineering,b.InstituteofEngineeringandResearch,Ganzhou341000,ChinaAbstract:
Inordertoobtainporesizedistributioncharacteristicofundisturbedandremouldedsoilofion-adsorptionrare-earthore,soil-watercharacteristiccurvetestsinfieldandlabwerecarriedontypicalion-adsorptionrare-earthoreinsouthofJiangxiusingtensiometer,theporesizedistributionofundisturbedandremouldedorebodywerecalculated,basedonFittingmodelsofsoil-watercharacteristiccurve.Thestudyfindings:Specificsurfaceareaofundisturbedorebodyis1.313m2/g,cumulativetotalporevolumeofundisturbedorebodyis0.2244m3/g,specificsurfaceareaofremouldedorebodyis4.205m2/g,cumulativetotalporevolumeofremouldedorebodyis0.2365m3/gtheprocessofremodelinghaschangedporesizedistributionofundisturbedorebodyandincreasedspecificsurfaceareaoforebodyabout3.2timesthanbefore,buteffectiveporevolumehadnoclearchanges,which