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Magnesium aluminate spinel refractory material and preparation method thereof
The invention discloses a magnesium aluminate spinel refractory material and a preparation method thereof, and relates to the technical field of refractory materials, and the preparation method comprises the following steps: weighing raw materials according to formula parts; uniformly mixing the raw materials in a mixer to obtain a mixture A; putting the mixture A into a calcining furnace for heating reaction; taking the heated mixture A out, subjecting to standing cooling and putting into a mixing mill to be ground, and obtaining a mixture B; placing the mixture B in an acid solution to be subjected to acid pickling for 15 min, and obtaining a precipitate; and taking out the precipitate, and drying the precipitate in a drying oven to obtain the magnesium aluminate spinel powder. The magnesium powder, the aluminum powder, the titanium dioxide powder, the diboron trioxide powder and the like are used as raw materials, the mixture of the magnesium aluminate spinel and the titanium diboride is synthesized through combustion and chemical reaction, then the titanium diboride is removed through the acid solution, and the obtained magnesium aluminate spinel is higher in purity, lower in air hole, higher in volume density, smaller in expansion rate and better in stability.
本发明公开一种镁铝尖晶石质耐火材料及其制备方法，涉及耐火材料技术领域，包括以下步骤：按照配方份数称取原料；原料放入混料机中混合均匀，得到混合料A；将混合料A放入煅烧炉中进行加热反应；将加热后的混合料A取出并静置冷却，放入混磨机中研磨，得到混合料B；将混合料B置于酸溶液中酸洗15min，得到沉淀物；取出沉淀物，置于干燥箱中干燥，得到镁铝尖晶石粉体。本发明以镁粉、铝粉、二氧化钛粉体和三氧化二硼粉体等为原料，通过燃烧和化学反应合成镁铝尖晶石和二硼化钛混合物，再利用酸溶液把二硼化钛去除，得到的镁铝尖晶石纯度更高，气孔更低，体密更高，拥有更小的膨胀率，稳定性更好。
Magnesium aluminate spinel refractory material and preparation method thereof
The invention discloses a magnesium aluminate spinel refractory material and a preparation method thereof, and relates to the technical field of refractory materials, and the preparation method comprises the following steps: weighing raw materials according to formula parts; uniformly mixing the raw materials in a mixer to obtain a mixture A; putting the mixture A into a calcining furnace for heating reaction; taking the heated mixture A out, subjecting to standing cooling and putting into a mixing mill to be ground, and obtaining a mixture B; placing the mixture B in an acid solution to be subjected to acid pickling for 15 min, and obtaining a precipitate; and taking out the precipitate, and drying the precipitate in a drying oven to obtain the magnesium aluminate spinel powder. The magnesium powder, the aluminum powder, the titanium dioxide powder, the diboron trioxide powder and the like are used as raw materials, the mixture of the magnesium aluminate spinel and the titanium diboride is synthesized through combustion and chemical reaction, then the titanium diboride is removed through the acid solution, and the obtained magnesium aluminate spinel is higher in purity, lower in air hole, higher in volume density, smaller in expansion rate and better in stability.
本发明公开一种镁铝尖晶石质耐火材料及其制备方法，涉及耐火材料技术领域，包括以下步骤：按照配方份数称取原料；原料放入混料机中混合均匀，得到混合料A；将混合料A放入煅烧炉中进行加热反应；将加热后的混合料A取出并静置冷却，放入混磨机中研磨，得到混合料B；将混合料B置于酸溶液中酸洗15min，得到沉淀物；取出沉淀物，置于干燥箱中干燥，得到镁铝尖晶石粉体。本发明以镁粉、铝粉、二氧化钛粉体和三氧化二硼粉体等为原料，通过燃烧和化学反应合成镁铝尖晶石和二硼化钛混合物，再利用酸溶液把二硼化钛去除，得到的镁铝尖晶石纯度更高，气孔更低，体密更高，拥有更小的膨胀率，稳定性更好。
Magnesium aluminate spinel refractory material and preparation method thereof
一种镁铝尖晶石质耐火材料及其制备方法
ZHENG ZEPING (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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