多尺寸超细血中协同花的机制和动态调节:实验性表征和动态建模
Zhangke Kang1, Yanbai Shen1, Baoyu Cui1
1School of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning 110003, PR China.
Water research
|June 27, 2025
概括
超细血中的颗粒大小异质性显著影响花和沉积. 涉及粗,中和细颗粒的多层次机制优化了花结构,并提高了矿物加工中的脱水效率.
科学领域:
- 矿物加工 矿物加工
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
背景情况:
- 在矿物加工过程中,超精细的血花和沉积是至关重要的.
- 粒子大小的异质性是影响这些过程的关键因素.
- 了解不同颗粒大小之间的协同机制对于优化回收至关重要.
研究的目的:
- 根据颗粒大小异质性,阐明超细血中花和沉积的多尺度协同机制.
- 研究不同粒子大小类 (粗,中,细) 在形成和稳定性中的作用.
- 开发一种优化花和脱水过程的模型.
主要方法:
- 粒子大小的分类和表征.
- 测量泽塔电位和吸附分析.
- 里埃变换红外光谱法 (FTIR) 和X射线光电子光谱法 (XPS).
- 扩展的德贾金 - 兰道 - 维维 - 奥弗比克 (DLVO) 理论.
- 实验室花沉积试验和工业数据分析.
- 开发一个多颗粒度化模型 (MGFM).
主要成果:
- 粗颗粒通过结和范德瓦尔斯力形成一个耐切削骨架.
- 细颗粒通过吸附和化学结合填充毛孔,而中型颗粒使用阳离子聚烯胺 (APAM) 弥合颗粒.
- 不同质的粒子相互作用增强了范德瓦尔斯的吸引力,导致密集,稳定的.
- MGFM (R2 = 0.7328) 量化描述了颗粒大小的作用,显示过度细微阻碍和中等颗粒桥梁.
- 优化的多尺寸策略改善了脱水动力学和水回收.
结论:
- 一个多层次的协同作用机制控制了超细的血花和沉积.
- 颗粒大小异质性,当优化时,增强了花稳定性和脱水性能.
- 开发的MGFM为矿产加工中的有针对性的战略提供了定量基础,以有效地回收资源.
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