化工学报 ›› 2003, Vol. 54 ›› Issue (12): 1783-1786.
• 材料科学与工程 • 上一篇 下一篇
高建峰;徐春彦;王建中;王久芬;庄源益
出版日期:
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GAO Jianfeng;XU Chunyan;WANG Jianzhong;WANG Jiufen;ZHUANG Yuanyi
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关键词: 脱钠剂, 超深度脱硅剂, 拟薄水铝石, SB粉, 比表面
脱钠剂,
Abstract: The purification of mother liquor containing sodium aluminate by using desilication agent and the preparation of high pure pseudo-boehmite and gamma alumina are reported. The sodium aluminate in the mother liquor coming from Shanxi Aluminium Plant is treated with home-made desilication agent, the ratios of SiO2/Al2O3 and Fe2O3/Al2O3 in treated-solution are below 0.01%. The pseudo-boehmite is obtained with buffer solution deposition in which ammonia gas acts as a circulating medium. The specific surface area of pseudo-boehime powder reaches up to 300m28226;g-1 and pore volume reaches about 0.7ml8226;g-1.The content of sodium in pseudo-boehime is below 0.005% after treating the pseudo-boehime with a sodium removal agent.The quality of this product is comparable to the SB powder made in Germany.Gamma alumina with a larger specific surface area and pore volume is obtained by temperature programmed calcination of pseudo-boehmite.
Key words: 脱钠剂, 超深度脱硅剂, 拟薄水铝石, SB粉, 比表面
高建峰, 徐春彦, 王建中, 王久芬, 庄源益. 由偏铝酸钠直接制取高纯γ-Al2O3 [J]. 化工学报, 2003, 54(12): 1783-1786.
GAO Jianfeng, XU Chunyan, WANG Jianzhong, WANG Jiufen, ZHUANG Yuanyi. DIRECT PREPARATION OF HIGH PURE γ-ALUMINA FROM SODIUM ALUMINATE[J]. CIESC Journal, 2003, 54(12): 1783-1786.
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H2O2沉淀铝酸钠溶液法制备大孔容纳米γ-Al2O3纤维粒子