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Magnesium-calcium material and preparation method thereof
The invention relates to a magnesium-calcium material and a preparation method thereof. The preparation method comprises the following steps: mixing 60-70 wt% of magnesia-calcia particles, 20-30 wt% of magnesia-calcia fine powder, 2-5 wt% of cerium phosphate and 3-6 wt% of phosphotitanate, uniformly stirring, carrying out compression molding, and naturally drying for 20-30 h; and drying for 8-16 hat the temperature of 110 DEG C, firing for 2-5 h at the temperature of 1500-1700 DEG C, and cooling to obtain the magnesium-calcium material, wherein the MgO content of the magnesia-calcia is greater than or equal to 40 wt%, the particle size of magnesia-calcia particles is 0.2-11 mm, and the particle size of the magnesia-calcia fine powder is 3-200 [mu]m; the particle size of the cerium phosphate is 3-200 [mu]m; and the content of P2O5 in the phosphotitanateis greater than or equal to 1wt%, and the content of TiO2 in the phosphotitanate is greater than or equal to 1 wt%. The method is simple in process, low in cost and environmentally friendly, and the prepared magnesium-calcium material is excellent in hydration resistance, remarkable in metal melt purification effect and suitable forpurifying refractory materials for smelting.
本发明涉及一种镁钙材料及其制备方法。其技术方案是：将60～70wt％的镁钙砂颗粒、20～30wt％的镁钙砂细粉、2～5wt％的磷酸铈和3～6wt％的磷钛酸酯混合，搅拌均匀，压制成形，自然干燥20～30小时；再于110℃条件下干燥8～16小时，然后在1500～1700℃条件下烧成2～5小时，冷却，制得镁钙材料。其中：所述镁钙砂的MgO含量均≥40wt％，镁钙砂颗粒的粒径为0.2～11mm，所述镁钙砂细粉的粒径为3～200μm；所述磷酸铈的粒径为3～200μm；所述磷钛酸脂中的PO含量≥1wt％，TiO的含量≥1wt％。本发明工艺简单、成本低和环境友好，所制备的镁钙材料抗水化能力优异和净化金属熔体效果显著，适合于纯净化冶炼用耐火材料。
Magnesium-calcium material and preparation method thereof
The invention relates to a magnesium-calcium material and a preparation method thereof. The preparation method comprises the following steps: mixing 60-70 wt% of magnesia-calcia particles, 20-30 wt% of magnesia-calcia fine powder, 2-5 wt% of cerium phosphate and 3-6 wt% of phosphotitanate, uniformly stirring, carrying out compression molding, and naturally drying for 20-30 h; and drying for 8-16 hat the temperature of 110 DEG C, firing for 2-5 h at the temperature of 1500-1700 DEG C, and cooling to obtain the magnesium-calcium material, wherein the MgO content of the magnesia-calcia is greater than or equal to 40 wt%, the particle size of magnesia-calcia particles is 0.2-11 mm, and the particle size of the magnesia-calcia fine powder is 3-200 [mu]m; the particle size of the cerium phosphate is 3-200 [mu]m; and the content of P2O5 in the phosphotitanateis greater than or equal to 1wt%, and the content of TiO2 in the phosphotitanate is greater than or equal to 1 wt%. The method is simple in process, low in cost and environmentally friendly, and the prepared magnesium-calcium material is excellent in hydration resistance, remarkable in metal melt purification effect and suitable forpurifying refractory materials for smelting.
本发明涉及一种镁钙材料及其制备方法。其技术方案是：将60～70wt％的镁钙砂颗粒、20～30wt％的镁钙砂细粉、2～5wt％的磷酸铈和3～6wt％的磷钛酸酯混合，搅拌均匀，压制成形，自然干燥20～30小时；再于110℃条件下干燥8～16小时，然后在1500～1700℃条件下烧成2～5小时，冷却，制得镁钙材料。其中：所述镁钙砂的MgO含量均≥40wt％，镁钙砂颗粒的粒径为0.2～11mm，所述镁钙砂细粉的粒径为3～200μm；所述磷酸铈的粒径为3～200μm；所述磷钛酸脂中的PO含量≥1wt％，TiO的含量≥1wt％。本发明工艺简单、成本低和环境友好，所制备的镁钙材料抗水化能力优异和净化金属熔体效果显著，适合于纯净化冶炼用耐火材料。
Magnesium-calcium material and preparation method thereof
一种镁钙材料及其制备方法
WEI YAOWU (author) / LI BINGRONG (author) / XIAO JUNLI (author)
2020-06-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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