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

作　　者：刘冬 叶志良 曹晶 王志斌[2] 许艺 吴沛成 沈文霞[2] 周钰明[3] 

机构地区：[1]金陵石化有限责任公司研究院,南京210046 [2]南京大学化学系,南京210093 [3]东南大学化学化工系,南京210096

出　　处：《化工时刊》2003年第7期29-32,共4页Chemical Industry Times

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NH_4HCO_3或(NH_4)_2/CO_3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。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.

关 键 词：铝盐沉淀法 制备 低堆比 假-水软铝石 晶种 

分 类 号：O614.31[理学—无机化学]