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本文阐述的是用锥面双极性多室电解槽制取轻金属的新方法。该法是以碱金属或碱土金属氯化物作电解质制取金属或合金,例如电解 AlCl_3制取金属铝。通过流体循环模型的比较,阐明锥面双极性多室电解的优越性。选择适当的控制参数,可以获得较高的电流效率ηi。以电压方程式 E_(平均)=α+βD 和 E-D 伏安特性曲线,来说明平均槽电压E_(平均)与电流密度 D 之间的线性关系。利用减少电压梯度β的办法降低 E_(平均),提高双极多室电解槽的电压效率ηv,进而达到降低电耗 W 的目的。适于采用高电流密度操作的锥面双极性多室电解槽,产能增大 M(N+1)倍。这种电解槽也可用于 MgCl_2电解制取金属镁,以及混合电解 AlCl_3、MgCl_2等制取铝镁基合金。
This article describes a new method for making light metals from a cone-bipolar multi-compartment cell. The law is based on alkali metal or alkaline earth metal chloride as electrolyte preparation of metal or alloy, such as electrolytic AlCl_3 Preparation of aluminum. By comparing the fluid circulation model, the advantages of cone bipolar multi-chamber electrolysis are clarified. Select the appropriate control parameters, you can get a higher current efficiency ηi. The linear relationship between the average cell voltage E_ (average) and the current density D is shown by the voltage equation E_ (average) = α + βD and E-D volt-ampere characteristics. By reducing the voltage gradient β way to reduce E_ (average), increase the bipolar multi-room cell voltage efficiency ηv, and thus achieve the purpose of reducing power consumption W. Conical bipolar multi-cell electrolyzers for operation at high current densities increase M (N + 1) times. The electrolyzer can also be used for preparing magnesium chloride by electrolysis of MgCl 2, and mixing the electrolyzed AlCl 3, MgCl 2 and the like to prepare the aluminum-magnesium-based alloy.