(1. 北京有色金屬研究總院，北京100088；2. 東北大學(xué)材料與冶金學(xué)院，沈陽(yáng)110006))
摘 要: 基于(2.23～3.0)NaF·AlF3-(0～5%)LiF-(0～15%)CaF2系熔體初晶溫度、變溫氧化鋁溶解能力和變溫密度的研究，首次得到了氧化鋁溶解能力為6%，8%和10%時(shí)溫度范圍在 910 ～950 ℃的等溶初晶溫度和密度在2.04～2.20g/cm3之間的等溶變溫密度。分析了分子比、LiF添加量和CaF2添加量對(duì)這兩種性質(zhì)的影響規(guī)律，為鋁電解工業(yè)選擇適宜的電解質(zhì)成分提供了具有可比性的科學(xué)的理論依據(jù)。
關(guān)鍵字: 鋁電解質(zhì)；等溶初晶溫度；等溶變溫密度
（1. General Research Institute for Nonferrous Metals, Beijing 100088, P.R.China;
2. Northeastern University, Shenyang 110006, P.R.China）
Abstract:According to the regression equations of initial crystallization temperature(ICT), the solubility of alumina and density at the temperature of 20 ℃ above its ICT of (2.23～3.0)NaF·AlF3-(0～5%)LiF-(0～15%)CaF2 system, the ICT isograms within the range of 910～950℃ and the density isograms at nonequal temperature within the range of 2.04～2.20g/cm3 under the 6%, 8%, 10% solubility of alumina were first obtained respectively. The effects of bath ratio, concentration of LiF and CaF2 were discussed. It can provide the scientific theoretical basis for choosing suitable aluminium electrolyte composition.
Key words: aluminium electrolytes; initial crystallization temperature; density at nonequal temperature
