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相关概念视频

Surface Tension of Fluid01:22

Surface Tension of Fluid

183
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
183
Centrifugation01:05

Centrifugation

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Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...
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相关实验视频

Updated: May 14, 2025

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)&#8211;Cell Interaction and the Resultant Bioeffects at the Single-cell Level
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关于在流化床浮动中粒子-泡相互作用和分离的研究.

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  • 1State Key Laboratory of Coking Coal Resources Green Exploitation, Pingdingshan 467000, Henan, China.

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概括
此摘要是机器生成的。

液化床浮动有效地利用甲基酸盐回收粗煤. 这种方法与柱式浮动相比,显著提高了清洁煤的产量,优化了分离参数,提高了效率.

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科学领域:

  • 矿物加工 矿物加工
  • 化学工程是化学工程的重要组成部分.
  • 材料科学 材料科学 材料科学

背景情况:

  • 粗矿物回收与传统漂浮具有挑战性.
  • 液化床浮动为提高效率提供了潜在的潜力.

研究的目的:

  • 研究粗煤的流化床漂浮机制.
  • 为增强分离优化参数.
  • 将液化床浮动与柱浮动进行比较.

主要方法:

  • 在流化床浮动中研究了粒子-泡相互作用.
  • 使用甲基酸盐作为煤的收集器.
  • 确定最佳的收集器剂量和水速度.
  • 将分离效率与柱浮动相比较.

主要成果:

  • 降低颗粒沉速度和增强的疏水性改善了回收.
  • 液化床漂浮实现了超过30%的清洁煤产量,显著优于柱式漂浮 (<10%).
  • 在最佳条件下 (2000 g/t甲基酸盐,87 mm/s水速) 产生了32.71%的清洁煤,9.89%的灰.

结论:

  • 使用甲基酸盐的液化床浮动对于粗煤回收是有效的.
  • 优化的参数提高了分离效率和产量.
  • 这种方法为粗煤的列漂浮提供了一个优质的替代方案.