萃取有机相黏度变化规律的研究  

STUDY ON THE VISCOSITY DETERMINATION OF ORGANIC PHASE IN EXTRACTION

作　　者：谢文彬 张利华 彭金辉[1,2,3,4] 巨少华 张利波[1,2,3,4] 李英 李华[4] 李玺 XIE Wen-bin;ZHANG Li-hua;PENG Jin-hui;JU Shao-hua;ZHANG Li-bo;LI Ying;LI Hua;LI Xi(State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization,Kunming 650093,China;Kunming University of Science and Technology,Key Laboratory of Unconventional Metallurgy,Ministry of Education,Kunming 650093,China;Kunming University of Science and Technology,National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology,Kunming 650093,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [2]昆明理工大学,非常规冶金教育部重点实验室,昆明650093 [3]昆明理工大学,微波能工程应用与装备技术国家地方联合工程实验室,昆明650093 [4]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《矿冶》2018年第1期48-52,共5页Mining And Metallurgy

基　　金：国家自然科学基金(51404116);NSFC-云南联合基金重点项目(U1302271)

摘　　要：黏度是流体黏滞性的一种量度,是流体流动力对其内部摩擦现象的一种表示。黏度对流体流动和动量传质过程有重要的影响,黏度不仅对流体雷诺数(Re)、毛细管数(Ca)、狄恩数(De)、施密特数(Sc)、管路中流速分布、流量的计算和判断流体流动状态有关,而且在动量传输过程中用来计算黏性动量通量都有重要运用。本试验进行了湿法冶金溶剂萃取工艺中常见萃取剂P204和P507稀释于煤油组成的有机相黏度的研究。分别考察了P204和P507萃取剂浓度、皂化率对有机相体系黏度的影响。结果表明,在相同浓度下萃取剂皂化率越高黏度越大;在同一皂化率下,萃取剂浓度越高,萃取剂黏度也越大。随着浓度和皂化率越大,黏度增加越快越不利于流体流动。Viscosity is a measure of the fluid viscous behavior,and represents the flow force for the internal friction.The viscosity has important effects on the fluid flow and the momentum transfer process.It influences not only the fluid Reynolds number(Re),capillary number(Ca),Dean number(De),Schmidt number(Sc),velocity distribution in the pipeline,flow calculation and estimation,but also the momentum transfer for the calculation of viscous momentum flux.In this study,the viscosity of the organic phases constituted by extractant P204 and P507 in kerosene commonly used in hydrometallurgical extraction process was studied.The effects of P204 and P507 extractant concentration,saponification rate of extractant on the viscosity of the organic phases were investigated.The results showed that viscosity increased with the increase of saponification rate of extractant under the same extractant concentration.Moreover,the higher the concentration of extractant was,the higher was the viscosity of extractant.As increasing the concentration and saponification ratio of the extractant,the increase of viscosity was not favorable for the fluid flow.

关 键 词：黏度 萃取剂 有机相 流体流动 动量传质 

分 类 号：TF804.2[冶金工程—有色金属冶金]