The mixed BHA/NaOL collector was studied to improve the floatability of ilmenite in the presence of lead ions. The mechanism was discussed through surface tension measurements, zeta potential measurements, adsorption amount measurements, and XPS analysis. Microflotation results show that the mixed BHA/NaOL collector exhibited a better performance on the floatability of ilmenite than single BHA and NaOL collector. The recovery of ilmenite was 92.9% when the molar ratio of BHA/NaOL was set to 7:3. The adsorption amount of mixed collectors on the ilmenite surface was greater than that of equivalent single BHA and NaOL. The results of surface tension suggest that there was synergism between BHA and NaOL in aqueous solution. Zeta potential results indicate that mixed BHA/NaOL adsorbed onto ilmenite surface and had a more negative shift than single BHA. XPS results further confirm that BHA and NaOL adsorbed onto the ilmenite surface through chemisorption and hydrogen bonds.

研究了混合 BHA/NaOL 捕收剂以提高钛铁矿在铅离子存在下的可浮性。通过表面张力测量、zeta 电位测量、吸附量测量和 XPS 分析讨论了该机制。微浮选结果表明，混合 BHA/NaOL 捕收剂对钛铁矿的可浮性比单一 BHA 和 NaOL 捕收剂表现出更好的性能。BHA/NaOL摩尔比为7:3时钛铁矿的回收率为92.9%。钛铁矿表面混合捕收剂的吸附量大于等效的单一BHA和NaOL。表面张力的结果表明BHA和NaOL在水溶液中存在协同作用。Zeta 电位结果表明，混合 BHA/NaOL 吸附在钛铁矿表面，比单一 BHA 具有更大的负移。