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.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
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
关键词
SB粉
铝酸钠溶液
种分
拟薄水铝石
SB pseudoboehmite
sodium aluminate solution
seed precipitation
pseudoboehmite
