多源石化废物的协同烧结用于高强度陶:过程优化和环境安全
Yang Liu1, Teng Wang2, Jiayan Dang1
1State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
Materials (Basel, Switzerland)
|February 27, 2026
概括
这项研究提出了一种新的烧结方法,可以从危险的石化废物,如油污和催化剂中制造高强度陶石. 优化的工艺产生了坚固,环保的结构材料,具有出色的重金属固定性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 废物管理 废物管理
背景情况:
- 石化危险废物,包括油污 (OS),废液催化裂变催化剂 (SFCC) 和石化污染土壤 (PCS),存在重大处置挑战.
- 可持续的管理策略对于减轻这些工业副产品对环境的影响至关重要.
研究的目的:
- 开发一个协同的烧结策略,将OS,SFCC和PCS转化为高强度,环保的陶材料.
- 优化陶矿生产过程,以获得最大的聚合物强度和理想的物理性能.
主要方法:
- 使用了协同烧结方法,将OS (有机来源),SFCC/PCS (酸框架) 和废玻璃粉 (流动剂) 结合起来.
- 进行单因素实验,以评估OS内容,烧结温度和持续时间的影响.
- 采用了Box-Behnken设计,以优化工艺,最大限度地提高陶矿聚合物的强度.
主要成果:
- 确定了最佳条件:OS含量为30.5%,烧结温度为1142°C,烧结时间为32分钟.
- 获得的陶石的压力强度为23.12 MPa,散装密度为1012.50 kg/m3,吸水率为1.61%.
- 微观结构分析显示了石英,安诺石固体溶液,血石和白石,具有相互锁定的安诺石玻璃状矩阵结构.
结论:
- 开发的协同烧结战略有效地将危险的石化废物转化为高性能结构陶.
- 由此产生的陶石符合中国的结构材料标准,并表现出优异的重金属固定性,确保环境安全.
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