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作者研究了电硅热法生产金属锰的废渣的相组成和结构。渣样是在工业熔炼时的渣罐中取出的。认为硅酸二钙的各种同质多品变体的比例取决于炉渣成分及其冷却条件。以前认为硅酸二钙在0—1600℃下有6种变体,现在认为有5种、即α,α′_H、α′_L、β、γ。不稳定的单斜晶形β—Ca_2SiO_4在405℃时转化为正交晶形γ—CaSiO_3,同时体积扩大12%。所以炉渣冷却时,由于发生了β→γ转化,变成了细弥散状。X 射线影图研究渣粉表明,γ—Ca_2SiO_4、α和α′—Ca_2SiO_4、MnO 是其中的主要相。图示了废渣的显微
The authors studied the phase composition and structure of the waste slag produced by electrical silicon thermal process. Slag samples are taken out of the slag pot during the smelting process. The proportions of various homogeneous multi-strain variants of dicalcium silicate are believed to depend on the slag composition and its cooling conditions. It was previously thought that dicalcium silicate has 6 variants at 0-1600 ° C, and now it is considered that there are 5 kinds of α, α’_H, α’_L, β, γ. The unstable monoclinic β-Ca 2 SiO 4 transforms to orthorhombic γ-CaSiO 3 at 405 ° C with a 12% increase in volume. Therefore, the slag cooling, due to the occurrence of β → γ conversion, into a fine dispersion. X-ray diffraction patterns of slag showed that γ-Ca 2 SiO 4, α and α’-Ca 2 SiO 4, MnO were the main phases. The waste microscopy is illustrated