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METHOD FOR PREPARING REFRACTORY FROM SECONDARY ALUMINUM DROSS
A method for preparing a refractory from a secondary aluminum dross, the secondary aluminum dross including silica and alumina, and the refractory including a basic magnesium-aluminum refractory or an acidic magnesium-aluminum-silicon refractory; when the secondary aluminum dross includes less than 5% by mass of silica, the refractory is the basic magnesium-aluminum refractory, and the method includes: subjecting a secondary aluminum dross powder, an aluminum source, a magnesium source and a magnesia-alumina spinel seed crystal to first mixing, and subjecting a resulting first mixture to one-step sintering to obtain the basic magnesium-aluminum refractory; when the secondary aluminum dross includes not less than 5% by mass of silica, the refractory is the acidic magnesium-aluminum-silicon refractory, and the method includes: subjecting a secondary aluminum dross powder, a silicon source, and a magnesium source to second mixing, and subjecting a resulting second mixture to one-step sintering to obtain the acidic magnesium-aluminum-silicon refractory.
METHOD FOR PREPARING REFRACTORY FROM SECONDARY ALUMINUM DROSS
A method for preparing a refractory from a secondary aluminum dross, the secondary aluminum dross including silica and alumina, and the refractory including a basic magnesium-aluminum refractory or an acidic magnesium-aluminum-silicon refractory; when the secondary aluminum dross includes less than 5% by mass of silica, the refractory is the basic magnesium-aluminum refractory, and the method includes: subjecting a secondary aluminum dross powder, an aluminum source, a magnesium source and a magnesia-alumina spinel seed crystal to first mixing, and subjecting a resulting first mixture to one-step sintering to obtain the basic magnesium-aluminum refractory; when the secondary aluminum dross includes not less than 5% by mass of silica, the refractory is the acidic magnesium-aluminum-silicon refractory, and the method includes: subjecting a secondary aluminum dross powder, a silicon source, and a magnesium source to second mixing, and subjecting a resulting second mixture to one-step sintering to obtain the acidic magnesium-aluminum-silicon refractory.
METHOD FOR PREPARING REFRACTORY FROM SECONDARY ALUMINUM DROSS
LIU WANCHAO (author) / WANG RIXIN (author) / LIAN YICHENG (author) / HU QIANG (author)
2024-10-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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