赤铁矿反浮选抑制剂研究

反浮选是提高铁精矿品位的有效方法,而抑制剂的选用是影响反浮选工艺的关键因素,本文从最常用的淀粉抑制剂入手,阐述了赤铁矿反浮选抑制剂的研究进展,综合分析了天然高分子和有机合成高分子各自的优缺点。结合有机小分子螯合抑制剂选择性好的特点以及聚合物分子量具有可控性的特点,有望研制大分子有机抑制剂以替代淀粉作为赤铁矿反浮选抑制剂,其前景较为光明。

Research on depressants for hematite in reverse-flotation

Reverse-flotation is an effective method of improving iron ore concentrates quality, and usually, the using of the appropriate depressant is very important in the reverse-flotation process. Therefore, this thesis will take the most commonly used starch depressant as an example, strive to discuss depressants for hematite in reverse-flotation, and try to compare the pros and cons of natural polymers and organic synthetic polymers. The prospects of macromolecule depressants seem promising in replacing the starch depressant, which have selectivity of small depressant molecules and are prone to be controllable about their molecular weights.