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Updated: Feb 23, 2026

Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments
Published on: January 23, 2018
Energy transfer and kinetics in mechanochemistry
Zhiliang Chen1, Shengyong Lu2, Qiongjing Mao3
1State Key Laboratory for Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, China.
Mechanochemistry effectively degrades persistent organic pollutants (POPs). A new model using total effective impact energy and reagent ratio accurately predicts degradation kinetics for industrial applications.
Area of Science:
- Environmental Chemistry
- Materials Science
Background:
- Mechanochemistry (MC) shows promise for degrading persistent organic pollutants (POPs).
- Limited understanding of reaction kinetics hinders MC application for POPs.
- Planetary ball mill dynamics and energy transfer require detailed investigation.
Purpose of the Study:
- To investigate ball motion and energy transfer in planetary ball mills.
- To establish and model mechanochemical kinetics for POP degradation.
- To identify key parameters controlling POP degradation efficiency.
Main Methods:
- Detailed analysis of ball motion and energy transfer in a planetary ball mill.
- Development of a mechanochemical kinetic model for hexachlorobenzene degradation using calcium oxide/Al.
- Experimental validation of the model under various operating conditions.
Main Results:
- Total effective impact energy unifies milling parameters.
- Total effective impact energy and reagent ratio determine POP degradation.
- Reaction rate constants correlate with reactant chemical properties, indicating additive quality.
Conclusions:
- A predictive model for mechanochemical POP degradation was developed.
- The model successfully forecasts reaction rates across different conditions.
- This approach is applicable to mechanochemical reactions in various reactors.
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