Abstract
High molecular weight polyacrylamides were synthesized and successfully modified to contain up to 8·3% hydroxamate functional groups. The selective flocculation tests carried out on 1:1 iron oxide/kaolin mixtures using parent polyacrylamide, polyacrylic acid and the modified polyacrylamide, confirm the possibility of enhancing selectivity through introduction of iron chelating functional groups in commercially available polymers. Starting with a feed grade of 35% iron, 92% recovery with acceptable grade of 60% iron has been achieved using the modified polyacrylamide.
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NCL communication No. 4415
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Ravi Shankar, S.A., Pradip, Deo, M.G. et al. Selective flocculation of iron oxide-kaolin mixtures using a modified polyacrylamide flocculant. Bull. Mater. Sci. 10, 423–433 (1988). https://doi.org/10.1007/BF02744655
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DOI: https://doi.org/10.1007/BF02744655