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Method for preparing high-alumina refractory material from aluminum ash
The invention discloses a method for preparing a high-alumina refractory material from aluminum ash. The method is characterized by comprising the following steps: washing aluminum ash with water to remove soluble salt, and carrying out filtering and drying to obtain filter residues; adding concentrated sulfuric acid into the filter residues, carrying out uniform stirring in a physical field stirrer, and performing filtering and washing to obtain purified residues; and molding and sintering the purified residues to obtain the high-alumina refractory material. The method is low in production cost and high in efficiency, and high-quality cyclic utilization of resources is achieved.
本专利公开了一种铝灰制备高铝质耐火材料的方法,其特征在于,将铝灰用水洗去可溶盐后,过滤、烘干得到滤渣;在滤渣中加入浓硫酸,在物理场搅拌器中搅拌均匀、过滤、洗涤后得到净化渣;将净化渣成型、烧结得到高铝质耐火材料。本方法生产成本低,效率高,实现资源高质循环利用。
Method for preparing high-alumina refractory material from aluminum ash
The invention discloses a method for preparing a high-alumina refractory material from aluminum ash. The method is characterized by comprising the following steps: washing aluminum ash with water to remove soluble salt, and carrying out filtering and drying to obtain filter residues; adding concentrated sulfuric acid into the filter residues, carrying out uniform stirring in a physical field stirrer, and performing filtering and washing to obtain purified residues; and molding and sintering the purified residues to obtain the high-alumina refractory material. The method is low in production cost and high in efficiency, and high-quality cyclic utilization of resources is achieved.
本专利公开了一种铝灰制备高铝质耐火材料的方法,其特征在于,将铝灰用水洗去可溶盐后,过滤、烘干得到滤渣;在滤渣中加入浓硫酸,在物理场搅拌器中搅拌均匀、过滤、洗涤后得到净化渣;将净化渣成型、烧结得到高铝质耐火材料。本方法生产成本低,效率高,实现资源高质循环利用。
Method for preparing high-alumina refractory material from aluminum ash
一种铝灰制备高铝质耐火材料的方法
TAN HONGBIN (Autor:in) / MA XIAOLING (Autor:in) / DONG FAQIN (Autor:in) / YANG FEIHUA (Autor:in) / LI YUXIANG (Autor:in) / ZHANG JIXIU (Autor:in) / LI FANG (Autor:in) / WANG JINMING (Autor:in) / DENG QIULIN (Autor:in) / WANG JIN (Autor:in)
22.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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