公开(公告)号：US20160145753A1

公开(公告)日：2016-05-26

申请号：US14902947

申请日：2013-07-09

申请人： United Company RUSAL Engineering and Technology Centre, LLC

发明人： Dmitry Aleksandrovich SIMAKOV ,  Aleksandr Olegovich GUSEV

IPC分类号： C25C3/18

CPC分类号： C25C3/18

摘要： The invention concerns non-ferrous metallurgy, in particular the composition of an electrolyte for electrically obtaining aluminum by the electrolysis of fluoride melts. The electrolyte proposed contains, in % by weight: sodium fluoride 26-43, potassium fluoride up to 12, lithium fluoride up to 5, calcium fluoride 2-6, alumina 2-6, aluminum fluoride and admixtures—the remainder. The technical result is to increase the solubility of alumina in the electrolyte at a temperature of 830-930° C. In the electrolyte being applied for, the carbon and inert electrode materials are not destroyed, and the use of special methods to purify the aluminum of melt components is not required.

摘要翻译： 本发明涉及有色冶金，特别是通过电解氟化物熔体电解获得铝的电解质的组成。 提出的电解质含有：以重量计：氟化钠26-43，氟化钾高达12，氟化锂高达5，氟化钙2-6，氧化铝2-6，氟化铝及其混合物。 技术结果是在830-930℃的温度下提高氧化铝在电解液中的溶解度。在所用的电解液中，碳和惰性电极材料不会被破坏，而采用特殊方法来净化铝 的熔体组分不需要。