Patent ID: 8119096
Filing Date: 2012-02-21
Classification: C01F,C01P,C09K

Abstract:
1. A method for the industrial production of boehmite comprising the steps of: A) mixing aluminum monohydrate, having a boehmite crystal structure, in water and thereby forming a first aqueous dispersion having a solid fraction of said boehmitic aluminum monohydrate in a range of 5 to 50 percent; B) grinding said first aqueous dispersion while maintaining said first aqueous dispersion in a pH range of 2 to 4 and forming boehmite seed crystals; C) mixing Al(OH) D) heating said second aqueous dispersion in a temperature range of 110 degrees Celsius to 180 degrees Celsius for a time in a range between 4 to 24 hours to autocatalytically convert at least a substantial portion or essentially all of said Al(OH)