OuYang ShunLi, Zhang YuXuan, Chen YuXin, Zhao ZengWu, Wen Ming, Li BaoWei, Shi Yu, Zhang MingZhe, Liu ShiLiang
Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou, 014010, China.
Sci Rep. 2019 Feb 13;9(1):1964. doi: 10.1038/s41598-018-37996-4.
It is a useful way to stabilize the elements of heavy metal in the glass-ceramics with the form of ions due to the environmental pollution of heavy metal, such as Cr. The glass-ceramics of excellent combination properties were prepared, and the effect of stabilizing Cr-containing stainless steel slag with different concentrations of nitric acid leaching test were investigated. It was found that the major crystalline phase was diopside or anorthite with or without the amount stainless steel slag. Moreover, the continuous refinement of grains exhibited with the increase of amount of stainless steel slag. The results indicated that the excellent physical and mechanical properties, including density (2.9 g/cm), hardness (729.27HV0.3), bending strength (222.9 MPa), and the solid solution of Cr in excess of 0.00057% for the glass-ceramics were related to the change of microstructure and phase structure. There showed the potential for reusing and detoxifying stainless steel slag.
由于重金属（如铬）对环境的污染，以离子形式稳定微晶玻璃中重金属元素是一种有用的方法。制备了具有优异综合性能的微晶玻璃，并研究了不同浓度硝酸浸出试验对含铬不锈钢渣的稳定化效果。结果发现，主要晶相为透辉石或钙长石，有无不锈钢渣的量。此外，随着不锈钢渣用量的增加，晶粒不断细化。结果表明，微晶玻璃优异的物理和力学性能，包括密度（2.9g/cm）、硬度（729.27HV0.3）、抗弯强度（222.9MPa）以及Cr的固溶度超过0.00057%，与微观结构和相结构的变化有关。这显示了不锈钢渣再利用和解毒的潜力。
