Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-purity high-density sintered magnesium aluminate spinel and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to high-purity and high-density sintered magnesium aluminate spinel and a preparation method thereof.The preparation method comprises the following steps that industrial aluminum oxide and light calcined magnesium oxide are pretreated through a low-temperature and high-pressure carbonization method, and a high-purity industrial aluminum oxide filter material and a high-purity basic magnesium carbonate filter material are obtained; uniformly mixing the high-purity industrial alumina filter material and the high-purity basic magnesium carbonate filter material, and calcining at high temperature to obtain high-purity magnesium aluminate spinel light calcined powder; the high-purity magnesium aluminate spinel light-burned powder is subjected to pressing and ultra-high-temperature calcination in sequence, and the high-purity and high-density sintered magnesium aluminate spinel is obtained. The sintered magnesia-alumina spinel prepared by the method is adjustable in magnesium-alumina ratio, high in purity and high in compactness, and the light-burned magnesia-alumina spinel micro powder with high sintering activity can be used for preparing transparent ceramic high-performance refractory materials.
本发明涉及耐火材料技术领域，尤其是涉及一种高纯高致密烧结镁铝尖晶石及其制备方法，包括以下步骤：采用低温高压碳化法分别对工业氧化铝和轻烧氧化镁进行预处理，得到高纯工业氧化铝滤料和高纯碱式碳酸镁滤料；将高纯工业氧化铝滤料和高纯碱式碳酸镁滤料混合均匀后，高温煅烧，得到高纯镁铝尖晶石轻烧粉；将高纯镁铝尖晶石轻烧粉依次进行压制、超高温煅烧，得到高纯高致密烧结镁铝尖晶石。本发明所制备得到的烧结镁铝尖晶石镁铝比可调，并且纯度高、致密性高，该高烧结活性的轻烧镁铝尖晶石微粉可用于制备透明陶瓷高性能耐火材料。
High-purity high-density sintered magnesium aluminate spinel and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to high-purity and high-density sintered magnesium aluminate spinel and a preparation method thereof.The preparation method comprises the following steps that industrial aluminum oxide and light calcined magnesium oxide are pretreated through a low-temperature and high-pressure carbonization method, and a high-purity industrial aluminum oxide filter material and a high-purity basic magnesium carbonate filter material are obtained; uniformly mixing the high-purity industrial alumina filter material and the high-purity basic magnesium carbonate filter material, and calcining at high temperature to obtain high-purity magnesium aluminate spinel light calcined powder; the high-purity magnesium aluminate spinel light-burned powder is subjected to pressing and ultra-high-temperature calcination in sequence, and the high-purity and high-density sintered magnesium aluminate spinel is obtained. The sintered magnesia-alumina spinel prepared by the method is adjustable in magnesium-alumina ratio, high in purity and high in compactness, and the light-burned magnesia-alumina spinel micro powder with high sintering activity can be used for preparing transparent ceramic high-performance refractory materials.
本发明涉及耐火材料技术领域，尤其是涉及一种高纯高致密烧结镁铝尖晶石及其制备方法，包括以下步骤：采用低温高压碳化法分别对工业氧化铝和轻烧氧化镁进行预处理，得到高纯工业氧化铝滤料和高纯碱式碳酸镁滤料；将高纯工业氧化铝滤料和高纯碱式碳酸镁滤料混合均匀后，高温煅烧，得到高纯镁铝尖晶石轻烧粉；将高纯镁铝尖晶石轻烧粉依次进行压制、超高温煅烧，得到高纯高致密烧结镁铝尖晶石。本发明所制备得到的烧结镁铝尖晶石镁铝比可调，并且纯度高、致密性高，该高烧结活性的轻烧镁铝尖晶石微粉可用于制备透明陶瓷高性能耐火材料。
High-purity high-density sintered magnesium aluminate spinel and preparation method thereof
一种高纯高致密烧结镁铝尖晶石及其制备方法
GAO JIN (Autor:in) / NIE WANGFA (Autor:in) / SUN BO (Autor:in) / ZHANG ZHENGGANG (Autor:in)
24.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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