Though the positive role of ultrasound has been confirmed in the mineral extraction, its potential towards fiercely mechanically-activated mineral was not yet mentioned. In this study, as a novel mechanical activation style, bead milling (BM) was presented and ZnO ore was selected to determine its effectiveness. Results showed that median particle size of ZnO ore could be pulverized to as low as 1/164 of its original value (from ∼29.2 μm to ∼178 nm), indicating much higher activation potential of BM than that of conventional ball milling. Besides, structure destruction, even phase transformation with the direct participation of airborne CO₂ occurred. All these processes rendered the superior activation capacity of BM. In view of the extraction promotion, the combination of ultrasound and BM exerted more pronounced effect than those of individual ones, indicating the synergistic effect between extra energy input (by ultrasound) and inner energy storage (by fierce BM). The classic shrinking core model with the product layer diffusion as the rate-controlling step was found to well model the extraction kinetics. The modeling disclosed high capability of ultrasound and BM combination in decreasing the activation energy (E_a) (from 54.6 kJ/mol to 26.4 kJ/mol), while ultrasound, BM could only decrease the E_a to 44.9 kJ/mol, 41.5 kJ/mol, respectively. The dual roles of ultrasound were specially highlighted: (i) participation in the extraction process via direct energy input, (ii) regulation of the aggregation that the activated ore suspension was confronted with.

尽管在矿物质提取中已经确认了超声波的积极作用，但尚未提及其对剧烈机械活化的矿物质的潜力。在这项研究中，作为一种新颖的机械活化方式，提出了珠磨（BM）并选择了ZnO矿石以确定其有效性。结果表明，ZnO矿石的中值粒径可以低至其原始值的1164（从29.2μm到178 nm），这表明BM的活化潜能比常规球磨高得多。此外，在机载CO ₂的直接参与下，结构破坏，甚至相变发生了。所有这些过程都赋予了BM出色的活化能力。考虑到提取的促进作用，超声和BM的结合比单独的结合具有更明显的作用，表明额外的能量输入（通过超声）和内部能量存储（通过剧烈的BM）之间具有协同作用。发现以产品层扩散为速率控制步骤的经典收缩核模型可以很好地模拟萃取动力学。该模型揭示了超声和BM组合在降低活化能（E _a）（从54.6 kJ / mol到26.4 kJ / mol）方面的高能力，而超声，BM只能降低E _a分别为44.9 kJ / mol，41.5 kJ / mol。特别强调了超声波的双重作用：（i）通过直接能量输入参与提取过程，（ii）调节活化矿悬浮液所面临的聚集。