攀枝花某钒钛磁铁矿新型浮选捕收剂VTBJ-1制备及分选实验研究

Preparation and Flotation Separation Experiment of a Novel Flotation Collector VTBJ-1 for a Vanadium-Titanium Magnetite Ore in Panzhihua

摘要: 攀枝花地区作为我国重要的钒钛磁铁矿资源基地，其矿产资源丰富，但传统的选矿工艺存在回收率低、精矿品位不稳定、药剂成本居高不下等问题。本文针对性地提出并设计一种新型浮选捕收剂VTBJ-1，通过对其分子结构进行设计，引入胺类活性基团与有机酸辅助基团，实现了对钛铁矿表面的强吸附性与高选择性。实验表明，VTBJ-1捕收剂的分子结构稳定、可降解、纯度达到95%以上，且在水相中分散性优异；根据工艺流程确定其分选的最佳工艺条件为：捕收剂用量1750 g/t，矿浆浓度58%，粗选pH值为5~6，精选段pH值逐级降低。在此条件下，钛精矿回收率和品位均达到最佳。与传统捕收剂相比，VTBJ-1显著提高了钛精矿的回收率和品位，分别约为2.17%、2.10%。

Abstract: As an important vanadium-titanium magnetite resource base in China, the Panzhihua area is rich in mineral resources, but traditional mineral processing technologies suffer from problems such as low recovery rate, unstable concentrate grade, and persistently high reagent costs. This paper proposes and designs a new type of flotation collector VTBJ-1 in a targeted manner. By designing its molecular structure and introducing amine-based active groups and organic acid auxiliary groups, strong adsorption and high selectivity on the surface of ilmenite are achieved. Experiments show that the VTBJ-1 collector has a stable and degradable molecular structure, a purity of over 95%, and excellent dispersibility in the aqueous phase. Based on the process flow, the optimal separation conditions are determined as follows: collector dosage of 1750 g/t, pulp concentration of 58%, pH value of 5~6 for roughing, and a gradual decrease in pH value for the cleaning section. Under these conditions, both the recovery rate and grade of ilmenite concentrate reach the optimal level. Compared with traditional collectors, VTBJ-1 significantly improves the recovery rate and grade of ilmenite concentrate by approximately 2.17% and 2.10% respectively.