Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines

Fu Nianxin; Zhang Shengbi

doi:10.13374/j.issn1001-053x.1995.05.013

Volume 17 Issue 5

Sep. 2021

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Fu Nianxin, Zhang Shengbi. Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines[J]. Chinese Journal of Engineering, 1995, 17(5): 464-468. doi: 10.13374/j.issn1001-053x.1995.05.013

Citation:

Fu Nianxin, Zhang Shengbi. Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines[J]. Chinese Journal of Engineering, 1995, 17(5): 464-468. doi: 10.13374/j.issn1001-053x.1995.05.013

Fu Nianxin, Zhang Shengbi. Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines[J]. Chinese Journal of Engineering, 1995, 17(5): 464-468. doi: 10.13374/j.issn1001-053x.1995.05.013

Citation:

Fu Nianxin, Zhang Shengbi. Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines[J]. Chinese Journal of Engineering, 1995, 17(5): 464-468. doi: 10.13374/j.issn1001-053x.1995.05.013

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Isothermal Reduction for Composites of Iron Ore Fines and Coal Fines

doi: 10.13374/j.issn1001-053x.1995.05.013

Department of Physical Chemistry, USTB, Beijing 100083, PRC

Received Date: 1995-01-11
Available Online: 2021-09-06

Abstract

Abstract

A composite cylindrical column of iron ore fines and coal fines was reduced isothermally at 1 100~1 250℃.The effects of temperature,time and W_coal/W_ore ratio on degree of reduction were studied and suitable additions of coal fines were determined.Activation energy values of the redution at different levels of fracational reaction were calculated with the help of an integration method.The reduction homogeneity of the composite cylindrical column in the radial directions were examined by chemical analysis and SEM observation.
- direct redution,
- degree of reduction,
- iron ore