Development of a highly efficient selective flocculant based on functionalized β‐cyclodextrin toward beneficiation of low‐quality iron ore

The present work is focused on the development of a novel flocculant for selective flocculation of iron ore using functionalized β‐cyclodextrin (β CD). β CD has been modified by esterification reaction with methacrylic anhydride (MAh) to form β CD methacrylate (CD‐Meth). After that, a three‐dimensio...

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Bibliographic Details
Published in:Polymers for advanced technologies 2021-05, Vol.32 (5), p.2169-2175
Main Authors: Patra, Priyapratim, Patra, Abhay Shankar, Mukherjee, Asim Kumar, Pal, Sagar
Format: Article
Language:English
Subjects:
Acrylamide
Acrylic acid
Beneficiation
copolymer
Cyclodextrins
Esterification
Flocculants
Flocculation
Free radical polymerization
Free radicals
Graft copolymers
Hematite
Iron compounds
Iron ores
Selectivity
β‐cyclodextrin
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Summary:The present work is focused on the development of a novel flocculant for selective flocculation of iron ore using functionalized β‐cyclodextrin (β CD). β CD has been modified by esterification reaction with methacrylic anhydride (MAh) to form β CD methacrylate (CD‐Meth). After that, a three‐dimensional polymeric network structure has been prepared by free radical polymerization of CD‐Meth with copolymeric chain of poly (acrylamide‐co‐acrylic acid) through grafting. The synthesized material has been characterized in detail. It has been found that the developed material has promising selectivity toward the hematite particles and also demonstrates faster settling of hematite particles. The developed material is found to be superior in all aspects than that of conventional selective flocculant used for iron ore beneficiation (i.e., starch).
ISSN:1042-7147
1099-1581
DOI:10.1002/pat.5247