In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 1092-1093 ( 2015-3), p. 1041-1045
Abstract:
Based on Shandong Renping Bayer red mud as the raw material, analyzing its basic characteristics, the result is that the content of total iron in red mud is 29.55%. Gas-based high-temperature direct reduction experiments are made by using a gas mixture of CO and H 2 O as a reducing agent. And then the reduction effect was investigated by magnetic separation experiments, to realize that separation of iron minerals from red mud. The results show that the consequent of the magnetic separation is improved obviously with the temperature rising. Under these conditions, namely, the roasting temperature being 1050°C, the roasting time lasting 90 minutes, the reduction gas rate being 0.7 m 3 /min, the magnetic field being 2.2A, and three magnetic separations, the iron recovery ratio in red mud is over 97%.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.1092-1093
DOI:
10.4028/www.scientific.net/AMR.1092-1093.1041
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2015
detail.hit.zdb_id:
2265002-7
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