Method for producing iron nickel-containing raw material and cobalt-containing raw material from petrochemical desulfurization catalyst recycling residue, method for producing stainless steel raw material using iron nickel-containing raw material, and method for producing ferronickel

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.