Understanding the nature of processes within a mineral processing plant in order to maintain efficiency is of great importance to mining operations. Given the complexities of a mineral processing plant and the interdependent nature of the many factors that affect performance, obtaining insights through the analysis and interpretation of available data resources can greatly aid the operation.
Electrowinning (EW) is the recovery of metals, such as gold, silver and copper, from a solution by passing a current through the solution. The current efficiency of an EW circuit describes the efficiency of the circuit in terms of how much metal is recovered for a given amount of electrical charge. Data Analysis Australia engaged with a mining company that had recently observed changes in the current efficiency of the EW circuit at one of their mines to investigate the issue. The initial aim was to confirm whether the observed change in efficiency was part of some longer-term trend or represented a discontinuity from past trends and patterns.