09-06-2023 дата публикации
Номер: CN116239123A
Принадлежит:
The invention discloses a white carbon black pore-forming process. The white carbon black pore-forming process specifically comprises the following steps: S1, reacting and precipitating; s2, filter pressing of the solution; s3, carrying out pulpifying treatment; s4, spray drying; the invention relates to the technical field of material preparation. According to the white carbon black pore-forming process, white carbon black is prepared by utilizing a precipitation method, after a white carbon black filter cake is prepared, the white carbon black filter cake is pulpified by utilizing an ammonium bicarbonate solution, and ammonium bicarbonate is separated out in a spray drying machine in a manner of ammonia gas, water and carbon dioxide in cooperation with a spray drying manner, so that the pore diameter of the white carbon black is increased, and meanwhile, the pore diameter of the white carbon black is increased. The method has the advantages that impurity residues in the white carbon black ...
Подробнее