Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1997-11-05
1999-10-05
Husar, John M.
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 2415, 241 27, B02C 2308
Patent
active
059610557
ABSTRACT:
The present invention relates to upgrading iron ore to decrease the amount of nonferrous materials therein, and to thereby increase the iron content thereof. More particularly, the invention relates to a process utilizing magnetic fields to separate a significant amount of non-magnetic material, such as silica or pyrolusite, from valuable iron oxide in an iron ore or iron ore concentrate. The invention therefore finds advantageous use to provide an improved source of iron oxides for high purity uses such as, for example, direct reduction processes and heavy media coal beneficiation processes.
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Husar John M.
Iron Dynamics, Inc.
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