一种新型金红石选择性捕收剂的应用研究

Application of a New Selective Collector for Rutile Flotation

以水杨羟肟酸(SHA)和TPRO作捕收剂,进行了金红石、石英的单矿物浮选和混合矿浮选试验。试验表明,与SHA相比,TPRO具有更强的捕收性能和极高的选择性,且无需活化。在最佳的浮选条件下,金红石单矿物的浮选回收率可以达到97.5%;混合矿浮选精矿中金红石的品位大于80%,回收率大于97%。紫外和红外检测结果表明,TPRO可以与金红石矿物表面发生化学吸附和螯合作用,从而使其具有较强的捕收性能。推测了TPRO在金红石矿物表面作用产物的结构。这是TPRO首次被用作钛矿物的捕收剂,对TPRO在金红石实际矿石浮选中的应用具有理论指导和现实意义。

Two different pure minerals, rutile and quartz, and a mixed ore of them, were used to study the effect of some collectors in rutile flotation, and a series of experiments were performed with salieyl hydroxamie acid （SHA） and another reagent Titanium-Promoter （TPRO） as collectors. The results indicated that, compared with SHA, TPRO shows much stronger collecting capacity and much better selectivity for rutile flotation and no activation is needed. Under the optimum condition, the recovery of pure rutile mineral flotation reached 97.5%, and for the mixed ore flotation, a recovery higher than 97% with a ruffle content of over 80% was achieved. IR spectrum, UV-V is absorption spectrum and further theory analysis indicated that TPRO is chemically adsorbed and probably chelated on rutile surface. The structure of the absorbed material after TPRO adsorption onto rutile surface was inferred. TPRO is reported to float titaniummineral for the first time.