Environmental Aspects of the Electrochemical Recovery of Tellurium by Electrochemical Deposition-Redox Replacement (EDRR)

The current study investigates the energy consumption and corresponding global warming potential (GWP) of tellurium recovery from multimetal solution by use a tailored electrochemical approach based on electrodeposition-redox replacement (EDRR). A three-electrode cell was used to recover Te synthetically prepared pregnant leach similar PLS leached Doré slag (30% aqua regia, [Cu] = 3.9 g/L, [Bi] 4.6 [Fe] 1.4 [Te] 100–500 ppm). enrichment electrode (with 100 EDRR cycles) had calculated 3.7 CO2 -eqv with 500 ppm Finnish mix. In comparison, decrease concentration increased environmental impact 16.9 -eqv. Overall, GWP shown be highly dependent geographical area, i.e. dominating production methods.