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本文依据三因子二次正交回归设计,在较宽的成分区域内研究铝电解工业常用电解质体系(2.23~3.0)NaF·AlF3-(0~5%)LiF-(0~ 15%)CaF2系熔体的变温电导率.电导率的测定采用平行四电极法,它克服了熔盐高温及氟盐侵蚀性对测定结果的影响.变温电导率(即初晶温度以上20℃时的电导率)的研究使测定结果更具有可比性.更能反应工业生产实际.经分析得到了与恒温性质不同的结论.这是本体系格体等溶变温性质研究工作的一部分,将为铝电解工业选择适宜的电解质成分提供理论依据.
Based on the quadratic quadratic regression design of three factors, NaF · AlF3- (0-5%) LiF- (0-15 %) Variable temperature conductivity of CaF2 based melt. Conductivity measurement using the parallel four-electrode method, which overcomes the high temperature of molten salt and fluoride salt erosion on the determination of the results. Temperature-dependent conductivity (ie, the conductivity at 20 ° C above the primary crystal temperature) made the results more comparable. More able to reflect the actual industrial production. The conclusion that the nature of the thermostat is different from that obtained by the analysis is obtained. This is part of the body lattice and other research work on the solubility of temperature properties, will provide a theoretical basis for the selection of the appropriate electrolyte composition of the aluminum electrolysis industry.