| Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences | Host |
| Citation: |
Cheng Zhihong. Application of Surface Modification and New Reagents in Low-Rank Coal Flotation under "Double Carbon Target"[J]. Multipurpose Utilization of Mineral Resources, 2022, (2): 15-21. doi: 10.3969/j.issn.1000-6532.2022.02.003
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Application of Surface Modification and New Reagents in Low-Rank Coal Flotation under "Double Carbon Target"
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Abstract
The energy structure characteristics of "rich coal, poor oil and less gas" in China determine the main energy status of coal resources, but its occurrence conditions are poor. With the reduction of the reserves of high-quality coal resources, the development and utilization scale of low-grade coal is expanding year by year. While providing high-quality clean coal, it has gradually realized the green comprehensive utilization of coal resources. Low rank coal has large reserves, low metamorphic degree and complex impurity composition. It is very important for the efficient and clean utilization of low rank coal in China to realize the separation of low rank coal, especially the high-efficiency separation of fine-grained low rank coal. Aiming at the characteristics of strong hydrophilicity, large porosity and complex gangue composition and embedding characteristics of low-order coal, the improvement effect of low-order coal flotation through surface modification, reagent synthesis and compounding and adsorption characteristics was systematically discussed, and the future development direction of low-order coal flotation enhancement was predicted. It provides reference for the efficient and clean utilization of China’s coal resources and the smooth implementation of the strategic goal of “double carbon".
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Keywords:
- Low rank coal /
- double carbon /
- surface modification /
- flotation /
- adsorption
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References
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Cheng Zhihong. Application of Surface Modification and New Reagents in Low-Rank Coal Flotation under "Double Carbon Target"[J]. Multipurpose Utilization of Mineral Resources, 2022, (2): 15-21. doi: 10.3969/j.issn.1000-6532.2022.02.003
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