Direct Production of Al-Mn Alloys During the Electrodeposition of Aluminum in a Laboratory Cell

This study reportsAluminum the directAlloys production of aluminum–manganese alloysAluminum–manganese alloys during the electrodeposition of aluminumAluminum in cryolitic melts. For the purpose of measuring current efficiencyCurrent efficiency, experiments were conducted in a laboratory cellCell. The temperature was changed between 960 and 980 °C at a cryolite ratio (CR) of 2.2 and a cathodic current density (CCD) of 0.9 A/cm2. Up to 3.0 weight percent of manganese was present. Mn2O3 was used as a methodMethod of manganese addition. To track the dissolutionDissolution of manganese during electrolysisElectrolysis, bath samples were routinely taken, and ICP-MS was examined. Al-Mn alloyAlloys electrodeposition current efficiencyCurrent efficiency was estimated to be in the region of above 90%. Estimates of aluminumAluminum's current efficiencyCurrent efficiency were made. The metal deposits’Deposits' hardened surfacesSurface were essentially flat, but some were deformed.