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在冶金炉渣中,依附在固体尖晶石上的金属熔滴可有效阻止铜在炉渣中的沉积。为了理解这一现象,评估了尖晶石颗粒和铜及与炉渣的交互作用。分别以Pb O-Fe O-Si O_2-Ca O-Al_2O_3-Cu_2O-Zn O合成炉渣、纯铜和Mg Al_2O_4基体代表工业废渣、铜滴和固体尖晶石。用静滴法和显微组织分析研究铜-Mg Al_2O_4和炉渣-Mg Al_2O_4交互作用。另外,采用沉浸实验研究时间对炉渣-Mg Al_2O_4交互作用的影响。结果表明,铜在Mg Al_2O_4上不润湿,然而炉渣在Mg Al_2O_4上润湿并在界面处形成了(Mg,Fe,Zn)(Al,Fe)_2O_4尖晶石交互层,在浸出实验中也观察到了该现象。同时观察到了Mg O和Al_2O_3从尖晶石基体扩散到炉渣中。
In metallurgical slag, metal droplets attached to solid spinel effectively prevent the deposition of copper in the slag. To understand this phenomenon, spinel particles and copper and the interaction with the slag were evaluated. The industrial slag, copper droplets and solid spinel are represented by Pb O-Fe O-Si O 2 -Ca O-Al 2 O 3-Cu 2 O-Zn O synthetic slag, pure copper and Mg Al 2 O 4 respectively. The interaction between copper-MgAl 2 O 4 and slag-MgAl 2 O 4 was studied by the method of droplet and microstructure analysis. In addition, immersion experiments were used to study the effect of slag-MgAl2O4 interaction. The results show that copper is not wetted on MgAl 2 O 4. However, the slag is wetted on Mg Al 2 O 4 and formed an (ML, Fe, Zn) (Al, Fe) 2 O 4 spinel interaction layer at the interface. Observed this phenomenon. It was also observed that MgO and Al 2 O 3 diffused from the spinel matrix into the slag.