Recovery of iron products from waste material streams

Details Recovery of iron products from waste material streams Recovery of iron products from waste material streams

C - Chemistry, Metallurgy

22

B

C22B 7/02 (2006.01) C01G 9/02 (2006.01) C22B 5/10 (2006.01) C22B 7/00 (2006.01) C22B 19/30 (2006.01)

Patent

CA 2257910

A method for the recovery of iron products, specifically direct reduced iron and iron oxide suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by treating the waste streams with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron feedstocks.

L'invention concerne un procédé pour la récupération de produits à base de fer, en particulier le fer de réduction directe et l'oxyde de fer pouvant être utilisés comme charge dans les aciéries, à partir de flux de déchets industriels contenant du fer. On traite ces flux avec une liqueur d'attaque au chlorure d'ammonium et on dissocie ensuite de cette liqueur les précipités non dissous renfermant les composés ferreux, puis on traite de nouveau lesdits précipités par grillage à température élevée, ce qui permet d'obtenir la ou les charges de fer.

Affiliated with

Also associated with

Rating

Recovery of iron products from waste material streams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery of iron products from waste material streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of iron products from waste material streams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1665473