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University of Science and Technology, Kunming 650093, China Received 25 May 2014; accepted 8 December 2014 Abstract: In order to recycle waste Sn-based alloys, the vapor-liquid phase equilibrium composition... words: Sn-based alloys; activity coefficient; vacuum distillation; vapor-liquid phase equilibrium 1 Introduction Sn is one of the earliest metals that human discovered and used and is widely used......
通过实验获得真空蒸馏中Zn-Ni二元合金的气-液相(Vapor-liquid equilibrium, VLE)平衡实验数据.采用Wilson方程预测了Zn-Ni二元合金组元的活度,且平均标准与相对偏差分为0.0062,0.0112和5.8170 %,4.8179 %.另外,基于VLE理论,采用Wilson方程计算了Zn-Ni合金的VLE数据,绘制VLE相图,并与实验值进行了比较,结果表明:计算值...液相平衡成分图(x-y图),无法连续定量预测真空蒸馏过程中合金组元在气,液相间的分布及随温度和压力的变化情况 [12,13].然而,气-液平衡(Vapor-liquid equilibrium, VLE)相图能够连续定量预测合金组元在气,液相间的分布.另外,还能根据所需产品成分选择最佳工艺参数,在化工领域得到了广泛应用,且取得了良好的效果.近年,杨红卫,孔令鑫等把VLE理论引入合金体系的真空蒸馏过......
%,气相中Zn含量由0增至99.9966 wt %,并且通过实验获得真空蒸馏中Zn-Ni二元合金的气-液相(Vapor-liquid equilibrium, VLE)平衡实验数据.采用Wilson方程预测了Zn-Ni二元合金组元的活度,且平均标准与相对偏差分为0.0062,0.0112和5.8170 %,4.8179 %.另外,基于VLE理论,采用Wilson方程计算了Zn-Ni合金的VLE数...[5-11].合金体系的分离系数只能判断合金分离的可能性.另外,气液相平衡成分图(x-y图),无法连续定量预测真空蒸馏过程中合金组元在气,液相间的分布及随温度和压力的变化情况 [12,13].然而,气-液平衡(Vapor-liquid equilibrium, VLE)相图能够连续定量预测合金组元在气,液相间的分布.另外,还能根据所需产品成分选择最佳工艺参数,在化工领域得到了广泛应用,且取得了良好的效果......
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J. Cent. South Univ. Technol. (2011) 18: 1765-1772 DOI: 10.1007/s11771-011-0900-6 Modified origin-based algorithm for traffic equilibrium assignment problems ZHANG Tian-ran(张天然)1, YANG Chao(杨超)2... of origin-based user equilibrium (OUE) algorithm was studied, which involved the algorithm procedure and several implementation issues. To speed up the convergence, update policies of flows, costs......
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ARTICLE J. Cent. South Univ. (2019) 26: 304-311 DOI: https://doi.org/10.1007/s11771-019-4002-1 Equilibrium concentration of lithium ion in sodium aluminate solution HUANG Wen-qiang(黄文强), LIU Gui... concentration or raising molar ratio ak improved equilibrium concentration of lithium ion in sodium aluminate solution. Agitation speed had a minimal effect on lithium ion concentration. Over 0.65 g/L lithium......
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Heat transfer for Marangoni convection over a vapor-liquid interface due to an imposed temperature gradientXiaoyan Sheng1), Liancun Zheng1), and Xinxin Zhang2) 1) School of Applied Science...="ChDivSummary">A similarity analysis for Marangoni convection induced flow over a vapor-liquid interface due to an imposed temperature gradient was carried out. The analysis assumes that the surface......