| 氧化铝生产中“硅渣”的组成和结构研究 |
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| 引用本文： | 邓红梅,曾文明,陈念贻. 氧化铝生产中“硅渣”的组成和结构研究[J]. 金属学报, 1996, 32(12): 1248-1251 |
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| 作者姓名： | 邓红梅 曾文明 陈念贻 |
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| 作者单位： | 中国科学院上海冶金研究所 |
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| 摘 要： | 综合运用Ｘ射线衍射,红外光谱,差热分析等方法,研究氧化铝生产脱Ｓｉ反应生成物－－水合铝硅酸钠渣的组成和结构,证明其为有硅原子缺位的羟基方钠石,ＳｉＯ２与Ａｌ２Ｏ３摩尔比小于２．０主要系方钠石晶格骨架上硅原子缺位所致。
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| 关 键 词： | 硅渣 羟基方钠石 氧化铝 水合铝硅酸钠 |
COMPOSITION AND CRYSTAL STRUCTURE OF Na-Al SILICATE SLIME IN ALUMINA PRODUCTION |
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| DENG Hongmei,ZENG Wenming,CHEN Hianyi. COMPOSITION AND CRYSTAL STRUCTURE OF Na-Al SILICATE SLIME IN ALUMINA PRODUCTION[J]. Acta Metallurgica Sinica, 1996, 32(12): 1248-1251 |
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| Authors: | DENG Hongmei ZENG Wenming CHEN Hianyi |
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| Abstract: | The composition and crystal structure of the" White mud" ,or the Na-Al silicate slime in alumina production, is investigated by X-ray diffraction,IR spectra,differential thermal analysis, density detemination and chemical analysis concurrently. The chief phase, containing sodium aluminosilicate hydrate, has been identified to be hydroxy-sodalite crystals, usually having defect structure with vacancies of silicon atoms on the skeleton of sodalite lattice. |
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| Keywords: | Na-Al silicate slime hydroxy-sodalite silicon atom vacancy |
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