Patent ID: 9315878
Filing Date: 2016-04-19
CPC Classification: B02C,B03B,B07B,C22B

Claim Text:
1. A method for separating iron from a byproduct material of a direct reduction process of iron ore comprising the steps of: receiving the byproduct material of a direct reduction process of iron ore; processing the byproduct material using an air aspirator to generate a heavy fraction byproduct material and a light fraction byproduct material; sizing the heavy fraction byproduct material from the air aspirator, wherein the particles comprising the sized heavy fraction byproduct material are within a discrete size range; and separating an iron fraction from the sized heavy fraction byproduct material using a gravity separation table; and sizing the sized heavy fraction byproduct material from the gravity separation table, wherein the iron fraction from the sized heavy fraction byproduct material is not separated using a magnetic separator; the sizing of the sized heavy fraction byproduct material occurs after the separation of the iron fraction from the sized heavy fraction byproduct material using a gravity separation table; and the heavy fraction is separately sized from the sized heavy iron fraction.