en2015-08-18 18:13 PM CESThttp://inspire.ec.europa.eu/codelist/ProcessingActivityTypeValue/electrolysis:1http://inspire.ec.europa.eu/codelist/ProcessingActivityTypeValue/electrolysisElectrolysis: Electrowinning and electrorefining respectively involve the recovery and purification of metals using electrodeposition of metals at the cathode, and either metal dissolution or a competing oxidation reaction at the anode.