关于从煤河中去除碳的研究,以通过使用不同收集器的浮动来净化高
Xiaoling Ren1, Xinqian Shu1, Yue Wu2
1China University of Mining and Technology-Beijing, Beijing 100083, China.
ACS omega
|April 28, 2025
概括
较长的碳链和含有氧气的群体改善了煤浮动. 含有氧基组的采集器提高了回收率并降低了灰含量,这是由于与煤炭带的结合更强.
科学领域:
- 矿物加工和材料科学 矿物加工和材料科学
- 表面化学 表面化学
- 环境工程 环境工程
背景情况:
- 煤浮动对于资源回收和减少废物至关重要.
- 了解收集器化学的作用是优化漂浮效率的关键.
- 煤的表面特性影响其与漂浮试剂的相互作用.
研究的目的:
- 调查碳化合物链长度和极性功能群对煤浮动的影响.
- 为了确定最佳的采集器特征,以提高煤炭沟分离.
- 为了阐明收集器和煤管组件之间的表面相互作用.
主要方法:
- 使用不同碳链长度和功能组的和碳化合物的漂浮实验.
- 分析煤炭和高的回收率和灰含量.
- 使用红外 (IR) 和X射线光电谱 (XPS) 进行煤的表面表征.
- 固态核磁共振 (NMR) 测试以确定散装成分.
主要成果:
- 当碳化合物链长度超过13个碳原子时,漂浮性能显著提高.
- 含有氧的功能组表现出优越的电子负性和极性,导致更好的漂浮.
- 采用氧基组的采集器实现了71.67%的可燃体回收率和88.34%的灰从高中去除.
- 煤呈现出高比例的碳氧结构 (表面超过60%,散装约20%),促进了与含氧收集器的结合.
结论:
- 收集器链的长度和含有氧的功能组的存在是煤漂浮的关键因素.
- 基于氧的功能组通过结增强了采集器 - 环相互作用,提高了分离效率.
- 煤中的高碳氧含量使其易于使用含氧收集器进行漂浮,为有效的废物回收提供了一条途径.
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