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Shape-controllable magnesium-based refractory material impurity modification method
The invention relates to a shape-controllable magnesium-based refractory material impurity modification method. The method comprises the following steps: 1) preparing low-melting-point impurity phase calcium forsterite of a magnesium-based refractory material; (2) adding a modifier La2O3 into the calcium forsterite powder obtained in the step (1), mixing, and drying; (3) putting the mixed materials into a tablet press for compression molding and drying; and 4) putting the dried sample into a high-temperature furnace at the temperature of 1300 DEG C or above for reaction sintering. The method has the advantages that the technological process is simple, the cost is low, the morphology is controllable, the low-grade magnesite is subjected to impurity modification treatment, the comprehensive utilization rate of the low-grade magnesite is increased, and energy is saved.
本发明涉及一种可控形貌的镁基耐火材料杂质改性方法，包括以下步骤：1)制备镁基材耐火材料的低熔点杂质相钙镁橄榄石；2)在步骤1)的钙镁橄榄石粉体中加入改性剂La2O3进行混合，并干燥；3)将混合好的物料放入压片机中压制成型并干燥；4)将干燥后的试样，置入1300℃以上的高温炉中反应烧结。本发明的优点是：工艺流程简单，成本低，形貌可控制，对低品位菱镁矿进行杂质改性处理，提高了其综合利用率，节约能源。
Shape-controllable magnesium-based refractory material impurity modification method
The invention relates to a shape-controllable magnesium-based refractory material impurity modification method. The method comprises the following steps: 1) preparing low-melting-point impurity phase calcium forsterite of a magnesium-based refractory material; (2) adding a modifier La2O3 into the calcium forsterite powder obtained in the step (1), mixing, and drying; (3) putting the mixed materials into a tablet press for compression molding and drying; and 4) putting the dried sample into a high-temperature furnace at the temperature of 1300 DEG C or above for reaction sintering. The method has the advantages that the technological process is simple, the cost is low, the morphology is controllable, the low-grade magnesite is subjected to impurity modification treatment, the comprehensive utilization rate of the low-grade magnesite is increased, and energy is saved.
本发明涉及一种可控形貌的镁基耐火材料杂质改性方法，包括以下步骤：1)制备镁基材耐火材料的低熔点杂质相钙镁橄榄石；2)在步骤1)的钙镁橄榄石粉体中加入改性剂La2O3进行混合，并干燥；3)将混合好的物料放入压片机中压制成型并干燥；4)将干燥后的试样，置入1300℃以上的高温炉中反应烧结。本发明的优点是：工艺流程简单，成本低，形貌可控制，对低品位菱镁矿进行杂质改性处理，提高了其综合利用率，节约能源。
Shape-controllable magnesium-based refractory material impurity modification method
一种可控形貌的镁基耐火材料杂质改性方法
2022-02-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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