Patent ID: 9150939
Filing Date: 2015-10-06
Classification: C21B,F27B

Abstract:
1. A method for the production of iron from an iron oxide-containing material, the method including feeding a pre-determined quantity of an iron oxide-containing material with a particle size distribution range with a δ contacting the iron-oxide-containing material and the carbon-containing material in the externally heated rotating cylindrical reactor or rotary kiln at a temperature of between 900° C. and 1200° C. for a contact time of between 30 minutes and 360 minutes to reduce the iron oxide to iron powder, the feed rates of the iron oxide-containing material and the carbon-containing material and the operating temperature of the reactor being selected so that a superficial gas flow rate through the reactor caused by the release of gases resulting from the reduction is less than 2 ms magnetically separating product iron powder from excess carbon-containing material.