新型捕收剂BK416对锡石的捕收性能研究

为了实现细粒锡石的高效回收,新研制了一种捕收剂BK416.为了检测BK416的性能、揭示BK416的作用机理,对锡石单矿物进行了pH值试验、捕收剂用量试验、动电位检测和红外光谱分析.结果表明:BK416具有药剂用量少、浮选pH值范围广、对锡石捕收效果好的优良特性,在pH=7、捕收剂用量10 mg/L情况下,锡石回收率可...

RESEARCH ON THE COLLECTING PROPERTY OF CASSITERITE BY A NEW COLLECTOR BK416

In order to realize the efficient recovery of fine cassiterite, a new collector BK416 was developed. In order to test the performance of BK416 and reveal the action mechanism of BK416, pH test, collector dosage test, the Zeta potential measurement and infrared spectrum analysis were conducted on the cassiterite single ore. The results show that BK416 has the excellent characteristics of less reagent dosage, wide pH range in flotation and good collection effect. Under the condition of pH = 7 and collector dosage of 10 mg / L, the recovery of cassiterite can reach 91.32%. The mechanism research shows that BK416 is chemically bonds with the tin particles on the surface of cassiterite through the nitrogen and oxygen atoms in its hydroxamic acid group. It provides a new reagent selection for cassiterite flotation, at the same time it provides a reference for the popularization and application of BK416 in cassiterite flotation.