ENVEX offers toll recovery services to primary base metal producers. The company employs novel hydrometallurgical technologies under license from IPEX for:
 

• Cost-effective recovery of base metals from current and discontinued tailings facilities, process effluents, contaminated groundwaters, spent catalysts, fly ash, etc. 

• Production of valuable metal salts employing selective leaching and ion exchange purification techniques

• Conversion of recovered metals into high-purity compounds including ammonium metavanadate, vanadium sulphate/chloride (VRB electrolyte), base metal sulphates/hydroxides and others. 

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The technology finds application in recovery of various metals (V, Cu, Co, Zn, Pb, Ni, Li, Mo, etc...)