Enhanced Iron Ore Pelletization Using Water Dispersive Acrylate Polymer- Resol Composite Binder: A Sustainable Alternative to Bentonite
발표자
애니켓 (국립부경대학교)
연구책임자
이원기 (국립부경대학교)
공동저자
애니켓 (국립부경대학교), 이원기 (국립부경대학교)
초록
내용
Iron ore pelletization requires binders that simultaneously provide green strength, high cured strength, and water stability, which conventional binders rarely achieve. Here, a hybrid binder system combining a water-dispersive acrylate polymer (AP) and a phenolic resol resin was developed to exploit their complementary functions. Resol resins synthesized at different formaldehyde-to-phenol ratios were evaluated, and the F:P = 2:1 composition was selected due to its lowest free phenol content and higher network conversion. Pellets prepared with AP-only, resol-only, and hybrid binders were thermally cured at 150 °C. FTIR analysis indicated hydrogen-bonding interactions between acrylate and phenolic groups, suggesting enhanced crosslinking after curing. Hybrid binders with 3 wt% total solids achieved an optimal balance, showing strong potential as sustainable alternatives to bentonite.