Method of Manufacturing Fe and Ni Containing Material and Co Containing Material Using Recycling Residue of Spent Catalyst and Method of Manufacturing Raw Material for Stainless Using the Fe and Ni Containing Material and Method of Manufacturing Fe-Ni Alloy

摘要

Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Co. The method includes: acid leaching of Fe and Co containing residue after theemoval of V and Mo; drying in reducing atmosphere at temperatures between 600 and 1300 °C; leaching with acid; filtering; blowing an oxidizing gas to precipitate ferric hydroxide; filtering and addition of alkali component to produce Co compound.