Separation and Recovery of Phosphorus from Steelmaking Slags with the Aid of a Strong Magnetic Field

摘要: In order to make sure the great potential of steelmaking slag as a new phosphorus resource, domestic material flow in Japan including iron and steel industry has been investigated based on statistical data 2002. It demonstrated that is almost equivalent with imported phosphate rock view points amount concentration. Phosphorus exists mainly form calcium-phosphate or its solid solution calcium-silicate rather than FetO rich liquid phase exhibits remarkable segregation solidified slag. If strong magnetic field applied crushed slag, precipitated can be separated from matrix due large difference each property. also indicated by Waste Input–Output model recovery process proposed present work environmental economical benefits.