SB粉水热种分过饱和铝酸钠溶液制备拟薄水铝石  

Preparation of Pseudoboehmite from Hydrothermally Supersaturated Sodium Aluminate Solution with SB Seed

作　　者：蔡卫权[1] 李会泉[2] 张懿[2] 

机构地区：[1]武汉理工大学化工学院,武汉430070 [2]中国科学院过程工程研究所,北京100080

出　　处：《无机化学学报》2006年第7期1303-1306,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家高技术研究发展计划项目(No.2003AA647010;No.2004AA649230);国家自然科学基金项目(No.50234040)资助

摘　　要：A novel hydrothermal process for preparation of single-phase pseudoboehmite from supersaturated sodium aluminate solution with SB pseudoboehmite seed was presented. The process is characterized by precipitation for 3 h at temperature around 125 ℃ with a seed ratio of 1.0. Precipitation yield of Al2O3 over 20% could be reached and the specific surface area of precipitated products almost as high as SB seed could be obtained. The process suitable for preparing pseudoboehmite with any pseudoboehmite seed in principle comprises a highly variation of the current Bayer process and the latest boehmite process for the production of smelter grade alumina.A novel hydrothermal process for preparation of single-phase pseudoboehmite from supersaturated sodium aluminate solution with SB pseudoboehmite seed was presented. The process is characterized by precipitation for 3 h at temperature around 125℃ with a seed ratio of 1.0. Precipitation yield of Al2O3 over 20% could be reached and the specific surface area of precipitated products.almost as high as SB seed could be obtained. The process suitable for preparing pseudoboehmite with any pseudoboehmite seed in principle comprises a highly variation of the current Bayer process and the latest boehmite process for the production of smelter grade alumina.

关 键 词：SB粉 铝酸钠溶液 种分 拟薄水铝石 

分 类 号：O611.4[理学—无机化学]