基于数据分析的复杂铝电解质体系工艺优化研究

Study on process optimization of complex electrolyte system in aluminum reduction based on data analysis

在现行冰晶石—氧化铝熔盐铝电解工艺中,作为原料的氧化铝中均会含有一定的氧化锂,由于氧化铝原料中的锂盐含量的差异性,造成国内铝电解质体系较为复杂,直接影响铝电解系列的电流效率和能耗。本文通过分析不同铝电解系列的铝电解体系、工艺控制参数、生产技术指标数据,提出了最佳氟化锂浓度条件下、低锂盐铝电解质体系及高锂盐铝电解质体系的工艺参数优化方案。

Industrial production of primary aluminum is carried out in alumina reduction cells by the so-called Hall- Héroult process,alumina as a raw material containing difference lithia,caused the aluminum electrolyte to complex,influence current efficiency and energy consumption in aluminum reduction. In this paper analysis of aluminum electrolysis system,process control parameters and production technology indicators based on data analysis,the optimum process parameters for lithium fluoride electrolyte of optimum concentration,lithium-poor aluminum electrolyte system and lithium-rich aluminum electrolyte system are put forward.