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Preparation method of modified cordierite-mullite refractory material
The invention belongs to the technical field of refractory material preparation, and mainly provides a preparation method of a modified cordierite-mullite refractory material. The preparation method of the modified cordierite-mullite refractory material comprises the following steps: placing a cordierite-mullite refractory material in a vacuum tank for vacuumization, and then injecting aluminum-magnesium sol or a mixture of aluminum oxide sol and magnesium oxide-containing powder into the vacuum tank to serve as a precursor of the cordierite-mullite refractory material; and drying the cordierite-mullite refractory material containing the precursor in a drying oven at 120 DEG C, and repeating the drying procedure 2-5 times to form the modified cordierite-mullite refractory material, whereina cordierite-mullite-based material is used as a matrix, the total content of cordierite and mullite in the matrix is not less than 50 wt%, and a weight ratio of aluminum oxide to magnesium oxide inthe precursor is not less than 2.6. According to the invention, permeation of a positive electrode material into a sagger is reduced, and the service life of the sagger is prolonged.
本发明属于耐火材料制备技术领域，主要提出一种改性堇青石‑莫来石耐火材料的制备方法。提出的一种改性堇青石‑莫来石耐火材料的制备方法，首先将堇青石‑莫来石耐火材料置于真空罐中抽真空，随后将铝镁溶胶或氧化铝溶胶和含氧化镁粉体的混合物注入真空罐中作为堇青石‑莫来石耐火材料的前驱体；然后将含前驱体的堇青石‑莫来石耐火材料在烘箱中120℃烘干，上述过程重复2‑5次，形成一种改性的堇青石‑莫来石耐火材料，其中堇青石‑莫来石基材料作为基体，基体中堇青石和莫来石总含量不小于50wt%；先驱体中氧化铝和氧化镁的重量之比不小于2.6。本发明减少了正极材料向匣钵内部的渗透，提高了匣钵的使用寿命。
Preparation method of modified cordierite-mullite refractory material
The invention belongs to the technical field of refractory material preparation, and mainly provides a preparation method of a modified cordierite-mullite refractory material. The preparation method of the modified cordierite-mullite refractory material comprises the following steps: placing a cordierite-mullite refractory material in a vacuum tank for vacuumization, and then injecting aluminum-magnesium sol or a mixture of aluminum oxide sol and magnesium oxide-containing powder into the vacuum tank to serve as a precursor of the cordierite-mullite refractory material; and drying the cordierite-mullite refractory material containing the precursor in a drying oven at 120 DEG C, and repeating the drying procedure 2-5 times to form the modified cordierite-mullite refractory material, whereina cordierite-mullite-based material is used as a matrix, the total content of cordierite and mullite in the matrix is not less than 50 wt%, and a weight ratio of aluminum oxide to magnesium oxide inthe precursor is not less than 2.6. According to the invention, permeation of a positive electrode material into a sagger is reduced, and the service life of the sagger is prolonged.
本发明属于耐火材料制备技术领域，主要提出一种改性堇青石‑莫来石耐火材料的制备方法。提出的一种改性堇青石‑莫来石耐火材料的制备方法，首先将堇青石‑莫来石耐火材料置于真空罐中抽真空，随后将铝镁溶胶或氧化铝溶胶和含氧化镁粉体的混合物注入真空罐中作为堇青石‑莫来石耐火材料的前驱体；然后将含前驱体的堇青石‑莫来石耐火材料在烘箱中120℃烘干，上述过程重复2‑5次，形成一种改性的堇青石‑莫来石耐火材料，其中堇青石‑莫来石基材料作为基体，基体中堇青石和莫来石总含量不小于50wt%；先驱体中氧化铝和氧化镁的重量之比不小于2.6。本发明减少了正极材料向匣钵内部的渗透，提高了匣钵的使用寿命。
Preparation method of modified cordierite-mullite refractory material
一种改性堇青石-莫来石耐火材料的制备方法
LIU GUOQI (author) / QIAN FAN (author) / LI HONGXIA (author) / WANG LONGGUANG (author) / YANG WENGANG (author) / YU JIANBIN (author) / MA WEIKUI (author)
2020-09-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
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