Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第8卷    第3期    总第28期    1998年9月

[PDF全文下载]        

    

文章编号:(1998)03-502-5
磁场强化溶液蒸发的效果及机理
马伟马文骥2 马荣骏申殿邦3

(1.华南理工大学化工研究所, 广州 510641;
2.长沙矿冶研究院, 长沙 410012;
3.沈阳冶炼厂,沈阳 110025
)

摘 要:     磁场效应对含砷溶液蒸发过程实验表明,磁场促进溶液的蒸发,不同的磁场作用参数和不同的溶液成分, 影响效果不同, 溶液蒸发效率提高5%~10%,平均效率提高达8% 以上。 通过液气两相平衡、 液体过热、 成核和挥发等过程的分析, 认为磁场强化溶液蒸发的作用机理是磁场具有“磁 致表面形核效应”。 实验表明磁场降低溶液的表面张力(即单位面积自由能)3.5%~8.3%, 从而降低了成核势垒, 促进了液体内部的能量交换。 增加了汽化成核几率, 使溶液蒸发过程得以强化。

 

关键字: 关键词:    磁场效应     溶液蒸发    表面成核

EFFECTS AND MECHANISM ON STRENGTHENING EVAPORATION OF SOLUTION IN MAGNETIC FIELD
Ma Wei1  Ma Wenji2  Ma Rongjun2  Shen Dianbang3

1.Chemical Engineering Institute,South China University of Technology, Guangzhou 510641, P. R. China
2.Changsha Research Institute of Mining and Metallurgy,Changsha 410012, P. R. China
3.Shenyang Smelter, Shenyang 110025, P. R. China

Abstract:The magnetic effects on the evaporation process have been studied. The results showed that the magnetic field promoted the evaporation and crystallization of As2O3, the evaporation rate increased by 5%~10%, on an average of more than 8%, and the effects related to the parameter of the magnetic field and the composition of the solution. By analyzing the process of gas-liquid balance, super heat, shaping nucleus and volatilization, the “surface shaping nucleus effect” of magnetic field was revealed. The experimental results showed that the surface tension decreased by 3.5%~3.8%. So the potential energy to shape nucleus was decreased and the internal energy exchange of solution was promoted. The probability of shaping nucleus in gasification was in creased and the evaporation process of the solution was strengthened thereby.

 

Key words:     effect of magnetic field     surface shaping nucleus     evaporation of solution

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com