Granulated metallic iron superior in rust resistance and...

B - Operations – Transporting – 22 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B22F 1/00 (2006.01) C21B 11/08 (2006.01) C21C 5/06 (2006.01)

Patent

CA 2642896

An object of the present invention is to provide a method for producing granulated metallic iron superior in rust resistance. Another object of the present invention is to provide a method for producing such granulated metallic iron. In the method, the granulated metallic iron is produced by agglomerating a material mixture including an iron- oxide - containing material and a carbonaceous reducing agent; charging and heating the agglomerated material mixture in a moving hearth- type reducing furnace to reduce the iron oxide in the material mixture with the carbonaceous reducing agent to obtain hot granulated metallic iron; and cooling the hot granulated metallic iron, wherein the hot granulated metallic iron is cooled while its relative position is changed; and an oxide coating is formed on the surface of the hot granulated metallic iron by bringing moisture into contact with almost the entire surface of the hot granulated metallic iron.

Un objet de la présente invention est de fournir un procédé de fabrication de fer métallique granulé de résistance à la rouille accrue. Un autre objet de la présente invention est de fournir un procédé de fabrication d'un tel fer métallique granulé. Selon le procédé, le fer métallique granulé s'obtient par agglomération d'un mélange de matériaux comprenant un matériau contenant de l'oxyde de fer et un agent réducteur carboné ; chargement et chauffage du mélange de matériaux aggloméré dans un four de réduction à sole mobile pour réduire l'oxyde de fer dans le mélange de matériaux avec l'agent réducteur carboné pour obtenir du fer métallique granulé chaud ; et refroidissement du fer métallique granulé chaud, caractérisé en ce que le fer métallique granulé chaud est refroidi pendant le changement de sa position relative ; et un revêtement d'oxyde est formé à la surface du fer métallique granulé chaud en mettant pratiquement toute la surface du fer métallique granulé chaud au contact de l'humidité.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Granulated metallic iron superior in rust resistance and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Granulated metallic iron superior in rust resistance and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Granulated metallic iron superior in rust resistance and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1799192

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.