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首页> 外文期刊>Metallurgist >Progress on the Use of an Information-Technology-Based Method in Low-Waste Technologies for Aluminum Production
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Progress on the Use of an Information-Technology-Based Method in Low-Waste Technologies for Aluminum Production

机译：基于信息技术的方法在低废铝生产技术中的应用进展

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The use of information-technology-based methods is substantiated and a method based on systems analysis is developed with the use of computer models to optimize the conditions and parameters of the operations in aluminum production. The method of minimizing the Gibbs free energy of a thermodynamic system is used to create an algorithm which determines the order of metastable equilibrium of the components in the production process and the dynamics of the mobile heterogeneous phases. The physicochemical laws that govern structural changes in the composition of the condensed phases and the equilibrium phases are examined in relation to the cryolite ratio (NaF/AlF3). The results make it possible to correct the cryolitealumina melt (electrolyte) and predict the volume of emissions and waste products. A method of measuring and stabilizing the characteristic temperatures is also developed. The optimum conditions and parameters for the use of fluoride salts (fluoroaluminates) and the recycling of fluorine compounds and impurities in "dry" gas-cleaning and electrolysis are determined. Fluorine-bearing wastes are grouped in three different classes based on the proportions of the main phases and the impurities that are present. Thermochemical methods are proposed for their waste-free processing to obtain additional products and process additives that can serve as valuable components in the production of alumina and aluminum. Improved technologies for cleaning gases and recycling wastes can help make more thorough use of raw materials and reduce emissions of harmful substances during aluminum manufacturing.
机译：证实了基于信息技术的方法的使用，并使用计算机模型开发了基于系统分析的方法，以优化铝生产中的操作条件和参数。使用最小化热力学系统的吉布斯自由能的方法来创建一种算法，该算法确定生产过程中组件的亚稳态平衡的顺序以及流动非均相的动力学。根据冰晶石比率（NaF / AlF3）检查了控制凝结相和平衡相组成的结构变化的物理化学定律。结果可以纠正冰晶铝酸盐熔体（电解质）并预测排放量和废物的量。还开发了一种测量和稳定特征温度的方法。确定了使用氟化盐（氟铝酸盐）以及“干式”气体清洁和电解过程中氟化合物和杂质的循环利用的最佳条件和参数。含氟废物根据主相和存在的杂质的比例分为三类。提出了热化学方法进行无废处理的方法，以获得可作为氧化铝和铝生产中有价值的组分的其他产品和工艺添加剂。改进的清洁气体和回收废物技术可以帮助更充分地利用原材料，并减少铝制造过程中有害物质的排放。

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