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Studies in magnetochemical engineering. Part III: Experimental applications of a practical model for high‐gradient magnetic separation to pilot‐scale coal beneficiation
Author(s) -
Liu Y. A.,
Oak M. J.
Publication year - 1983
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690290511
Subject(s) - beneficiation , magnetic separation , pulverized coal fired boiler , slurry , coal , process engineering , sulfur , environmental science , waste management , separation method , engineering , materials science , metallurgy , chemistry , environmental engineering , chromatography
The computer implementation and experimental verification of the practical model for high‐gradient magnetic separation (HGMS) based on particle buildup and feed characteristic, developed in Part II, are described. It is shown that the new model can be used to satisfactorily predict the grade, recovery and concentration breakthrough observed in pilot‐scale experimental studies of HGMS for the removal of sulfur and ash from water slurries of several pulverized Eastern coals. The experimentally verified model can be used to quantitatively identify the tradeoff of separation variables so as to optimize the magnetic removal of sulfur and ash from pulverized coal. The model can also be used to assess the technical and economical feasibility of the magnetic beneficiation of pulverized coal without extensive experimental tests.