PRODUCTION OF AQUEOUS SLURRY OF ACTIVATED ALUMINA AND ACTIVATED ALUMINA ADSORPTION COLUMN

摘要

PURPOSE:To obtain the title slurry excellent in fluidity by dispersing activated alumina particles in water and adjusting the pH level of the resultant aqueous slurry to a specified value to prevent flocculation of the activated alumina particles in the slurry. CONSTITUTION:Firstly, activated alumina particles are dispersed in water to produce an aqueous slurry of said alumina particles. Thence, the pH level of this slurry is adjusted to 2-6 to prevent flocculating the activated alumina particles in the slurry. And, this aqueous slurry is introduced into an adsorption column using e.g. a slurry pump to make the objective adsorption column packed with the activated alumina for use in purification. Thus, because of excellent fluidity of the above aqueous slurry, said adsorption column can be made in good workability. When such activated alumina as to be =8 in surface acidity is used, the present method will be particularly effective.