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Date of Award
Campus Access Master's Thesis
Master of Science in Chemical Engineering (MS)
Administrative Home Department
Department of Chemical Engineering
S. Komar Kawatra
Committee Member 1
Committee Member 2
Committee Member 3
The replacement of bentonite as the standard iron ore binder is an important factor in the future of iron processing. Bentonite adds 0.7%-1.0% unwanted silica to the final iron product. Bentonite replacement requires an in-depth understanding of how alternative binders affect the agglomeration process. One such alternative binder is starch, which can be modified in a multitude of ways. It has been observed that the use of a highly soluble starch can greatly increase the dry compressive strength of a hematite concentrate pellet. By heating a starch solution or extruding a starch, its solubility can be altered. When using starch along with bentonite, a suitable pellet can be produced that can withstand all aspects of pellet handling. It was observed that at the highest solubility of starch there was a strength increase of approximately 15 lbf.
McDonald, Jacob, "REDUCTION OF SILICA FROM HEMATITE ORE CONCENTRATE PELLETS BY SUPPLEMENTING BENTONITE CLAY WITH STARCH", Campus Access Master's Thesis, Michigan Technological University, 2017.