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Method for synthesizing magnesium aluminate spinel from waste magnesium and alumina carbon bricks and magnesium-containing alumina spinel
The invention discloses a method for synthesizing magnesium aluminate spinel from waste magnesium and alumina carbon bricks. The method specifically comprises the following steps in sequence: impurity removal of waste magnesium and alumina carbon bricks, crushing, addition of a sintering aid and a water-based adhesive, stirring, pelletizing, primary calcination synthesis, secondary crushing, secondary addition of the aid and the water-based adhesive, secondary stirring, secondary pelletizing and secondary calcination synthesis. Mixed bricks of waste magnesia carbon bricks and alumina carbon bricks do not need to be sorted; the treatment difficulty caused by unstable manual component selection is greatly reduced; the value of the used magnesia carbon brick and alumina carbon brick can be greatly improved; the rotary kiln has the advantage of environmental protection; the method is suitable for treating waste magnesia carbon bricks and alumina carbon bricks; the transfer cost is reduced; and synthesizing magnesium-aluminum-containing spinel, magnesium-rich spinel or aluminum-rich spinel according to the components of the mixed brick.
本发明公开了一种废镁、铝碳砖合成镁铝尖晶石的方法，具体包括以下依次进行的步骤：废镁、铝碳砖除杂‑破碎‑添加烧结助剂、水性粘接剂‑搅拌‑造球‑第一次煅烧合成‑二次破碎‑二次添加助剂、水性粘接剂‑二次搅拌‑二次造球‑二次煅烧合；不用分选废镁碳砖、铝碳砖的混合砖；大大减少人工挑选成份不稳定带来的处理难度；可大大提高用后镁碳砖、铝碳砖价值；用回转窑有环保的优点；适合在废镁碳砖、铝碳砖产生地处理；减少转运等费用；根据混合砖成份合成含镁铝尖晶石、富镁或富铝尖晶石。
Method for synthesizing magnesium aluminate spinel from waste magnesium and alumina carbon bricks and magnesium-containing alumina spinel
The invention discloses a method for synthesizing magnesium aluminate spinel from waste magnesium and alumina carbon bricks. The method specifically comprises the following steps in sequence: impurity removal of waste magnesium and alumina carbon bricks, crushing, addition of a sintering aid and a water-based adhesive, stirring, pelletizing, primary calcination synthesis, secondary crushing, secondary addition of the aid and the water-based adhesive, secondary stirring, secondary pelletizing and secondary calcination synthesis. Mixed bricks of waste magnesia carbon bricks and alumina carbon bricks do not need to be sorted; the treatment difficulty caused by unstable manual component selection is greatly reduced; the value of the used magnesia carbon brick and alumina carbon brick can be greatly improved; the rotary kiln has the advantage of environmental protection; the method is suitable for treating waste magnesia carbon bricks and alumina carbon bricks; the transfer cost is reduced; and synthesizing magnesium-aluminum-containing spinel, magnesium-rich spinel or aluminum-rich spinel according to the components of the mixed brick.
本发明公开了一种废镁、铝碳砖合成镁铝尖晶石的方法，具体包括以下依次进行的步骤：废镁、铝碳砖除杂‑破碎‑添加烧结助剂、水性粘接剂‑搅拌‑造球‑第一次煅烧合成‑二次破碎‑二次添加助剂、水性粘接剂‑二次搅拌‑二次造球‑二次煅烧合；不用分选废镁碳砖、铝碳砖的混合砖；大大减少人工挑选成份不稳定带来的处理难度；可大大提高用后镁碳砖、铝碳砖价值；用回转窑有环保的优点；适合在废镁碳砖、铝碳砖产生地处理；减少转运等费用；根据混合砖成份合成含镁铝尖晶石、富镁或富铝尖晶石。
Method for synthesizing magnesium aluminate spinel from waste magnesium and alumina carbon bricks and magnesium-containing alumina spinel
一种废镁、铝碳砖合成镁铝尖晶石的方法及含镁铝尖晶石
YE QINGQUAN (author) / YAN CHONG (author) / MAO PENG (author) / YAO ZENGYUAN (author) / YUAN BING (author) / ZHANG LEI (author)
2022-03-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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