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Large original crystal magnesium oxide powder as well as preparation method and application thereof
The invention belongs to the technical field of powder material preparation, and particularly relates to large primary crystal magnesium oxide powder and a preparation method and application thereof.A high-temperature calcination technology is adopted, a composite mineralizer and light calcined magnesia are blended and calcined, preparation of the large primary crystal magnesium oxide powder is achieved, the composite mineralizer is a high-valence oxide, and the composite mineralizer is a high-valence oxide. The high-valence oxide forms a liquid phase at high temperature, growth of magnesium oxide powder original crystals is accelerated, and the sphericity degree of the powder is improved. The purity of the prepared large primary crystal magnesium oxide powder is greater than 99%, the average particle size is 20-40 [mu] m, the problem that the average particle size of magnesium oxide powder crystals in a direct calcination method in the prior art is difficult to reach 5 [mu] m or above, so that the water absorption rate is large is solved, and the preparation method has the advantages of simple preparation process, environmental friendliness and low cost, and is suitable for industrial production. And large-scale production is facilitated.
本发明属于粉体材料制备技术领域，具体来说是一种大原晶氧化镁粉体及其制备方法和应用，本发明采用高温煅烧工艺，通过采用复合矿化剂与轻烧氧化镁共混煅烧，实现大原晶氧化镁粉体的制备，复合矿化剂为高价氧化物，高价氧化物在高温下形成液相，加速氧化镁粉体原晶的长大并提升粉体的球形度。本发明制备的大原晶氧化镁粉体纯度大于99％，平均粒径为20‑40μm，本发明克服了现有技术直接煅烧法存在的氧化镁粉体晶体平均粒径难以达到5μm以上而导致的吸水率较大的问题，而且具有制备工艺简单、环境友好、成本低的优点，便于大规模生产。
Large original crystal magnesium oxide powder as well as preparation method and application thereof
The invention belongs to the technical field of powder material preparation, and particularly relates to large primary crystal magnesium oxide powder and a preparation method and application thereof.A high-temperature calcination technology is adopted, a composite mineralizer and light calcined magnesia are blended and calcined, preparation of the large primary crystal magnesium oxide powder is achieved, the composite mineralizer is a high-valence oxide, and the composite mineralizer is a high-valence oxide. The high-valence oxide forms a liquid phase at high temperature, growth of magnesium oxide powder original crystals is accelerated, and the sphericity degree of the powder is improved. The purity of the prepared large primary crystal magnesium oxide powder is greater than 99%, the average particle size is 20-40 [mu] m, the problem that the average particle size of magnesium oxide powder crystals in a direct calcination method in the prior art is difficult to reach 5 [mu] m or above, so that the water absorption rate is large is solved, and the preparation method has the advantages of simple preparation process, environmental friendliness and low cost, and is suitable for industrial production. And large-scale production is facilitated.
本发明属于粉体材料制备技术领域，具体来说是一种大原晶氧化镁粉体及其制备方法和应用，本发明采用高温煅烧工艺，通过采用复合矿化剂与轻烧氧化镁共混煅烧，实现大原晶氧化镁粉体的制备，复合矿化剂为高价氧化物，高价氧化物在高温下形成液相，加速氧化镁粉体原晶的长大并提升粉体的球形度。本发明制备的大原晶氧化镁粉体纯度大于99％，平均粒径为20‑40μm，本发明克服了现有技术直接煅烧法存在的氧化镁粉体晶体平均粒径难以达到5μm以上而导致的吸水率较大的问题，而且具有制备工艺简单、环境友好、成本低的优点，便于大规模生产。
Large original crystal magnesium oxide powder as well as preparation method and application thereof
一种大原晶氧化镁粉体及其制备方法和应用
XU JIE (author) / WANG HENGCHANG (author) / LIN LANG (author) / GAO FENG (author) / WEI YI (author) / LU TAIRONG (author) / WEN ZHIPENG (author)
2023-08-22
Patent
Electronic Resource
Chinese
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
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