通过复合聚合工艺 (CAP) - 高炉方法来排毒和回收渣和含C的灰尘
Yikang Tu1, Zijian Su1, Yuanbo Zhang1
1School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.
Waste management (New York, N.Y.)
|September 4, 2023
概括
本研究介绍了一种复合聚合工艺 (CAP),用于处理渣和含C的灰尘,有效减少有毒六价 (Cr(VI)) 并允许从钢铁行业废物中回收.
科学领域:
- 金工程 金工程 金工程
- 环境科学 环境科学
- 废物管理 废物管理
背景情况:
- 渣和含C的灰尘是重要的工业废物,需要有效利用.
- 直接将这些废物添加到烧结过程中,面临容量和Cr (VI) 排毒的限制.
研究的目的:
- 开发和研究渣和含C的灰尘的创新共处理技术.
- 评估复合聚合工艺 (CAP) 与高炉方法相结合的可行性,用于废物处理和资源回收.
主要方法:
- 复合颗粒由使用CAP的渣和含C的灰尘形成.
- 这些复合颗粒与矩阵料共同结.
- 经过处理的材料进行了分析,以检测的特异化和烧结质量.
- 随后进行了高炉炼,以回收.
主要成果:
- 在不影响烧结质量的情况下,实现了20%的渣和5%的含C粉尘的共处置.
- 六价 (Cr(VI)) 完全降解为三价 (Cr(III)) 或金属.
- 主要以金属Cr的形式被发现,或被纳入螺旋和铁结构中.
- 在高炉炼后,烧结器中的90%以上的成功地回收成不钢母液.
结论:
- CAP高炉方法为共处理渣和含C的灰尘提供了有效的解决方案.
- 这项技术有助于Cr6的排毒和从工业废物中回收有价值的资源.
- 该过程在回收过程中表现出高效率,为可持续的钢铁行业实践做出了贡献.
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