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铝盐沉淀法制备低堆比假一水软铝石的研究
Study on Preparation of Low Bulk Density Pseudo - boehmite by Aluminum Salt Precipitation
【摘要】 研究了铝盐沉淀法制备假—水软铝石过程中各因素对水合产物物性的影响规律。提出了制备低堆比的高纯假—水软铝石的方法。用NH4HCO3或(NH4)2/CO3溶液做洗涤介质有效降低了假—水软铝石中的杂质含量。采用加入晶种的方法制备了低堆比、含有大孔的假—水软铝石。
【Abstract】 The effects of factors on hydrated products in the preparation of pseudo - boehmite by aluminum salt precipitation was studied.A method of preparing low bulk density and extremely pure pseudo - boehmite was introduced. Washing by NHtHCO3 or (NH4)2CO3 solution decreased the impurity in pseudo - boehmite significantly.The low bulk density and large porous pseudo - boehmite was obtained by the addition of crystal seeds.
- 【文献出处】 化工时刊 ,Chemical Industry Times , 编辑部邮箱 ,2003年07期
- 【分类号】O614.31
- 【被引频次】1
- 【下载频次】139