Reduction swelling behaviour of haematite/magnetite agglomerates with addition of MgO and CaO

Release time:2016-07-05

Affiliation of Author(s):Central South University

Journal:Ironmaking & Steelmaking

Key Words:PELLET, REDUCTION SWELLING, HAEMATITE, MAGNETITE

Abstract:The influence of three kinds of CaO and MgO additives (dolomite, burnt lime and serpentine) on the reduction swelling behaviour of haematite–magnetite (H–M) concentrates pellets was studied. Burnt lime and dolomite increased the reduction swelling index of H–M oxidised pellets, while the reduction swelling index was able to be reduced when serpentine was added. CaO accelerated the formation and growth of metallic iron whiskers and led to abnormal swelling of the magnetite briquettes, while MgO was able to be dissolved in wüstite and reduced the migration rate of Fe2+; therefore, there was no c

Co-author:T. Jiang, Z.X. Cui, Y.B. Zhang, Z.K. Tang, G.H. Li

Indexed by:Unit Twenty Basic Research

Discipline:冶金工程学

Document Type:J

Volume:37

Issue:6

Page Number:393-397

Translation or Not:no

Date of Publication:2013-07-18

Links to published journals:http://www.tandfonline.com/doi/abs/10.1179/030192310X12690127076352#.V3urtXqEAS4