基于低温碱性熔炼技术的熔体物化性质研究  

Physicochemical Properties of Melt Based on Low-Temperature Alkaline Smelting Process

作　　者：牟文宁 辛海霞 雷雪飞 翟玉春 MU Wen⁃ning;XIN Hai⁃xia;LEI Xue⁃fei;ZHAI Yu⁃chun(School of Resources&Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004,Hebei,China;Key Laboratory of Resources Cleaner Conversion and Efficient Utilization of Qinhuangdao City,Qinhuangdao 066004,Hebei,China;School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China)

机构地区：[1]东北大学秦皇岛分校资源与材料学院,河北秦皇岛066004 [2]秦皇岛市资源清洁转化与高效利用重点实验室,河北秦皇岛066004 [3]东北大学冶金学院,辽宁沈阳110819

出　　处：《矿冶工程》2019年第6期88-91,100,共5页Mining and Metallurgical Engineering

基　　金：国家重点基础研究发展计划项目(2014CB643405);河北省高等学校青年拔尖人才项目(BJ201604);国家自然科学基金(51234009);中央高校基本科研业务专项资金资助(N182304016)

摘　　要：基于有色金属资源的低温碱性熔炼技术,采用半球点法、旋转柱体法、阿基米德法和拉筒法,分别测定了NaOH体系、NaOH-Na2CO3体系和NaOH-Na2CO3-Na2SO4体系的熔化温度和高温密度、熔体的粘度和表面张力,并研究了不同碱组分含量对各体系物化性质的影响。结果表明,体系的熔化温度、粘度、表面张力和密度均随着Na2CO3和Na2SO4含量增加而增大,三个体系的熔化温度、粘度、表面张力和高温密度的大小顺序为:NaOH-Na2CO3-Na2SO4体系>NaOH-Na2CO3体系>NaOH体系。Based on low-temperature alkaline smelting processing technique for non-ferrous metallic resources,the melting temperature and high-temperature density of NaOH system,NaOH-Na2CO3 system and NaOH-Na2CO3-Na2SO4 system,as well as melt viscosity and surface tension were all measured by using hemispherical point method,rotating cylinder method,Archimedes method and rod pull method,respectively.Effects of different alkali component contents on the physicochemical properties of each system were explored.The results show that the melting temperature,viscosity,surface tension and density of the system increase with the increasing of Na2CO3 and Na2SO4 content,which are in the following descending order:NaOH-Na2CO3-Na2SO4 system>NaOH-Na2CO3 system>NaOH system.

关 键 词：低温碱性熔炼 NaOH-Na2CO3-Na2SO4体系 熔化温度 粘度 表面张力 密度 

分 类 号：TF111.31[冶金工程—冶金物理化学]