Process for producing an alumina fiber aggregate and alumina fiber aggregate obtainable therefrom

摘要

Process for producing an alumina fiber aggregate comprising spinning with a spinning solution by blowing method to obtain an alumina short fiber precursor aggregate and calcining the alumina short fiber precursor aggregate, characterized in that the scatter of gas flow velocity per slit from an air nozzle is within ± 15 % and the scatter of liquid flow rate per spinning solution supply nozzle is within ± 5 %.