In this work, the sulfidation-dodecylamine flotation effects of smithsonite using sodium sulfosalicylate activation were investigated by micro-flotation, atomic force microscopy (AFM), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and fourier transform infrared spectrometer (FTIR). The micro-flotation results showed that the sodium sulfosalicylate significantly promoted the sulfidation flotation of smithsonite using dodecylamine as a collector and increased the flotation recovery by around 26 %. The AFM analysis showed that the enhanced sulfurized smithsonite surface roughness R_q increased from 3.80 to 5.82, and the height of the hill-shaped materials on the smithsonite surface was greatly increased after enhanced sulfidation, reaching 41.4 nm. The SEM-EDS analysis revealed that the concentration of sulfur atoms on the sulfurized smithsonite surface enhanced by sodium sulfosalicylate was almost twice that of the direct sulfurized smithsonite surface. The ToF-SIMS analysis indicated that more ZnS was generated on the smithsonite surface and penetrated the smithsonite interior after enhanced sulfidation than after direct sulfidation. The results of FTIR indicated that the addition of sodium sulfosalicylate increased the adsorption of dodecylamine on the smithsonite surface after sulfidation by Na₂S·9H₂O. The mechanism by which sodium sulfosalicylate activated the smithsonite surface was proposed and verified. In this mechanism, the sulfosalicylic acid ion chelated with Zn²⁺ to form Zn(SSA)₂²⁺ complexes. These complexes react with S ions to form ZnS, which is adsorbed on the smithsonite surface, increasing the sulfide content on the mineral surface, and finally promoting the collection of dodecylamine.

在这项工作中，使用微浮选，原子力显微镜（AFM），扫描电子显微镜 - 能量色散光谱（SEM-EDS），飞行时间二次离子研究了使用磺基水杨酸钠活化的菱锌矿的硫化 - 十二胺浮选效果质谱法 (ToF-SIMS) 和傅里叶变换红外光谱仪 (FTIR)。微浮选结果表明，磺基水杨酸钠显着促进以十二烷基胺为捕收剂的菱锌矿的硫化浮选，使浮选回收率提高约26%。AFM分析表明，增强的硫化菱锌矿表面粗糙度R _q由 3.80 增加到 5.82，强化硫化后菱锌矿表面山丘状物质的高度大大增加，达到 41.4 nm。SEM-EDS 分析表明，磺基水杨酸钠增强的硫化菱锌矿表面硫原子浓度几乎是直接硫化菱锌矿表面的两倍。ToF-SIMS 分析表明，与直接硫化相比，强化硫化后在菱锌矿表面生成更多的 ZnS 并渗透到菱锌矿内部。FTIR结果表明，磺基水杨酸钠的加入增加了Na ₂ S·9H _{2硫化后菱锌矿表面十二胺的吸附量}O. 提出并验证了磺基水杨酸钠活化菱锌矿表面的机理。在该机制中，磺基水杨酸离子与Zn ²⁺螯合形成Zn(SSA) ₂ ²⁺络合物。这些络合物与S离子反应形成ZnS，吸附在菱锌矿表面，增加矿物表面硫化物含量，最终促进十二胺的收集。