Method and system for processing slag material

摘要

A method and system is used to process slag material to yield by-products including a finished iron rich product and a finished low iron fines product. The by-products may include a finished high iron product and a finished medium iron product. The method and system include size classifying the material into a plurality of sized groups prior to using magnetic separation to separate at least one of the sized groups into two portions having differing magnetic susceptibilities. The method and system may include more than one phase of size classifying the material into a plurality of sized groups and using magnetic separation to separate at least one of the sized groups into portions, where the average size of the material remaining after one phase is reduced prior to the subsequent phase.

主权项

1. A method for separating slag material, the method comprising:
size classifying the slag material into a first plurality of sized groups; magnetically separating at least one of the first plurality of sized groups to provide a first magnetic portion and a first non-magnetic portion, wherein the first non-magnetic portion is a finished low iron product; reducing the size of at least a portion of the slag material of the first magnetic portion to provide crushed material; size classifying the crushed material into a second plurality of sized groups; magnetically separating each of the second plurality of sized groups to provide a second magnetic portion and a second non-magnetic portion wherein the second magnetic portion includes an iron rich product.