Effect of reduction process on size of iron grain
Abstract：When reduction technology is key to control iron grain size in order to used for the fine-grained refractory iron ore, it obtain qualified separation product. As the iron is the grams from the reduction materials were spherical, the effects of different reduction processes on iron particles were qualitatively described by measuring the two-dimensional cross-section parame- ters of iron grains for the accumulative characteristic curve. The results indicate that properly increasing the reduction temperature and time, extending the coefficient of carbon, were con- ducive to the iron particles to grow up. However, when reduction temperature with a coeffi- cient of carbon was exorbitant high, the reduction temperature would prevent the growth of i- ron particles. The suitable process conditions of reducing temperature of 1 225 ℃, reducing time of 30 min, distribution coefficient of carbon of 2.0 were achieved. The d50 of iron particles of 278.88μm was obtained.
Keywords：refractory iron orereductioniron grainsize
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 817-820 )