| abstract |
Electrolytic cell for the production of aluminum by alumina reduction, said tank having a side wall comprising at least one side block, said side block comprising an aluminous material having an open porosity of less than 10%, and a composition, mass percentage on the basis of the aluminous material and for a total of 100%, such that: Al 2 O 3> 50%, beta alumina representing less than 20% of the mass of the aluminous material, oxides less reducible than 1000 ° alumina C: <50%, Na2O <3.9%, other components <5%. |