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COMPOSITION AND CRYSTAL STRUCTURE OF Na-Al SILICATE SLIME IN ALUMINA PRODUCTION |
DENG Hongmei;ZENG Wenming;CHEN Hianyi (Shanghai Institute of Metallurgy;Chinese Academy of Sciences;Shanghai 200050)(Manuscript received 1995-10-23; in revised form 1996-08-26) |
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Cite this article:
DENG Hongmei;ZENG Wenming;CHEN Hianyi (Shanghai Institute of Metallurgy;Chinese Academy of Sciences;Shanghai 200050)(Manuscript received 1995-10-23; in revised form 1996-08-26). COMPOSITION AND CRYSTAL STRUCTURE OF Na-Al SILICATE SLIME IN ALUMINA PRODUCTION. Acta Metall Sin, 1996, 32(12): 1248-1251.
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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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1陈念贻.氧化铝生产的物理化学.上海:上海科学技术出版社,19622FuldaW,GinsbergH.TonerdeundAluminium.Berlin:WalterdeGruyter&Co,19513BA,TA,1975;3:6594RegisAJ,SandLB,CalmonC,GilwoodME.JPhyschem,1960;64:15675LiuMiaoxiu,ZhouPeifang,ChenNianyi,LiYu,KeJiajun.ActaMeiallSin,1990;3B:43d |
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