磁场强化溶液蒸发的效果及机理
来源期刊：中国有色金属学报1998年第3期
论文作者：马伟 马文骥 马荣骏 申殿邦
文章页码：502 - 506
关键词：磁场效应； 溶液蒸发 ； 表面成核
Key words：effect of magnetic field ； surface shaping nucleus； evaporation of solution
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。
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.
