NaCl和LiF对冰晶石基铝电解液液相温度的影响

Q3 Materials Science

Yejin Fenxi/Metallurgical Analysis Pub Date : 2007-01-01 DOI:10.1149/ma2006-02/1/4

Qiu Zhu-xian

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引用次数: 6

摘要

介绍了一种用仪表连接计算机的COM口测量铝电解液体系液相温度的新方法。利用热分析法，根据冷却曲线确定液相温度。测定了NaF和NaCl的液相温度进行比较。结果表明，该方法可靠、准确。801℃~ 995℃，误差范围约为1 ~ 1.5℃。研究了NaCl和LiF对冰晶石基铝电解液液相温度的影响，并根据实验结果建立了数学模型。得到的数学模型为T=947.588-5.907×w(liff)-6.223×w(NaCl)。实验表明，在冰晶石基铝电解液中混合加入NaCl和LiF，不仅有效降低了电解液的液相温度，而且降低了生产成本，提高了经济效益。

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Effect of NaCl and LiF on liquidus temperature of molten cryolite-based aluminum electrolyte

A new method for measurement of liquidus temperature of aluminum electrolyte system with one meter connected to COM port of a computer is introduced.Liquidus temperature is determined based on cooling curve by using thermal analysis method.Liquidus temperatures of NaF and NaCl are measured for comparison.The results prove the method to be reliable and accurate.The range of error is about 1-1.5 ℃ from 801 ℃ to 995 ℃.The effects of NaCl and LiF on liquidus temperature of molten cryolite-based aluminum electrolyte are studied and the mathematical model is established based on the experimental results obtained by this method.The mathematical model obtained is T=947.588-5.907×w(LiF)-6.223×w(NaCl).The experiments show that the mix addition of NaCl and LiF into molten cryolite-based aluminum electrolyte not only reduces effectively the liquidus temperature of electrolyte but also decreases the production cost and increases the economic benefits.

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来源期刊

Yejin Fenxi/Metallurgical Analysis Materials Science-Metals and Alloys

CiteScore

0.80

自引率

0.00%

发文量

7744