A Novel Technology of Molybdenum Extraction from Spent HDS Catalysts

Spent HDS catalyst is an important secondary resource for extracting molybdenum. This study aimed to introduce a comprehensive process separating and recovering molybdenum from the roasted spent catalysts. The brief flow of novel technology contains pressure Na2CO3 liquor leaching, selective extraction using N263, circulating leaching raffinate. in catalysts can be leached by with 95.4%. Methyl trioctyl ammonium carbonate (N263) effectively separate leach liquor, stripping Mo were 99.8% 99.5%, respectively. raffinate returned recycling, was 94.3%. Compared currently applied technologies, characterized higher recovery circulation leaching.