Patent ID: 9121104
Filing Date: 2015-09-01
Classification: C25C

Abstract:
1. A system comprising: (a) an alumina storage unit comprising an alumina feedstock; (b) an alumina supply member in communication with the alumina storage unit and an aluminum electrolysis cell containing an electrolyte, wherein the alumina feedstock of the alumina storage unit periodically flows through the alumina supply member and into the electrolyte in the aluminum electrolysis cell; and (c) a measurement device in communication with the alumina supply member, wherein the measurement device is configured to measure a supply member property indicative of a property of the alumina feedstock passing through the supply member prior to discharge of the feedstock into the electrolyte and transmit a first signal to a processor, wherein the processor is configured to receive the first signal and produce supply member property data based, at least in part, on the first signal.