| 摘要 |
<p>Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Ni or Fe and Co, manufacturing raw material for stainless steel using the Fe and Ni-containing material, and manufacturing ferro- nickel using the Fe and Ni-containing material. The method of manufacturing Ni and Fe- containing material includes acid-treating Ni and Fe-containing residue to remove alkali therefrom; drying the residue and heat treating the residue in a temperature range from 600°C(degree Centigrade) to 1300°C(degree Centigrade) in a reducing atmosphere to reduce Ni and Fe oxides in the residue into metal state; leaching a resultant product obtained by the reduction using acid to selectively dissolve Ni and Fe; filtering the acid leached product to obtain a solution containing Ni and Fe ions; neutralizing the solution containing Ni and Fe ions using alkali to produce Fe,Ni hydroxide; and filtering and drying a resultant product obtained by the neutralization.</p> |
