Method for preparing mullite multiphase ceramic by low-temperature sintering of bauxite tailings
A technology of bauxite tailings and composite ceramics, which is applied in the fields of high-value tailings utilization and ceramic preparation, and can solve problems such as polluting the environment and difficulty in high-value utilization
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Embodiment 1
[0012] Raw materials: bauxite tailings are industrial solid waste, the main components are 44.5% alumina content, 35.2% silica content, 10.4% iron oxide content, 4.1% potassium oxide content, 2.8% titanium dioxide content, and a small amount of oxide Calcium, magnesium oxide and other impurities.
[0013] The main components of lithium china stone are 65% silica, 20% alumina, 2% lithium oxide, 8% potassium oxide and calcium oxide, and less than 5% other impurities.
[0014] The main components of bauxite clinker are 65% alumina, 28% silica, 4% titanium dioxide and iron oxide, and no more than 3% other impurities.
[0015] The above three raw materials are batched according to mass ratio, wherein bauxite tailings account for 30%, lithium china stone accounts for 35%, and bauxite clinker accounts for 45.5%. According to the ingredients: grinding balls: water = 1:1.5:2, weighed and put into the ball mill jar, wet milled for 3 hours, dried at 90°C for 48 hours, put into the mold ...
Embodiment 2
[0018] Raw materials: bauxite tailings are industrial solid waste, the main components are 44.5% alumina content, 35.2% silica content, 10.4% iron oxide content, 4.1% potassium oxide content, 2.8% titanium dioxide content, and a small amount of oxide Calcium, magnesium oxide and other impurities.
[0019] The main components of lithium china stone are 65% silica, 20% alumina, 2% lithium oxide, 8% potassium oxide and calcium oxide, and less than 5% other impurities.
[0020] The main components of bauxite clinker are 65% alumina, 28% silica, 4% titanium dioxide and iron oxide, and no more than 3% other impurities.
[0021] The above-mentioned three kinds of raw materials are batched according to mass ratio, wherein bauxite tailings account for 50%, lithium china stone accounts for 17.5%, and bauxite clinker accounts for 32.5%. According to the ingredients: grinding balls: water = 1:1.5:2, weighed and put into the ball mill jar, wet milled for 3 hours, dried at 90°C for 48 hour...
Embodiment 3
[0024] Raw materials: bauxite tailings are industrial solid waste, the main components are 44.5% alumina content, 35.2% silica content, 10.4% iron oxide content, 4.1% potassium oxide content, 2.8% titanium dioxide content, and a small amount of oxide Calcium, magnesium oxide and other impurities.
[0025] The main components of lithium china stone are 65% silica, 20% alumina, 2% lithium oxide, 8% potassium oxide and calcium oxide, and less than 5% other impurities.
[0026] The main components of bauxite clinker are 65% alumina, 28% silica, 4% titanium dioxide and iron oxide, and no more than 3% other impurities.
[0027] The above-mentioned three kinds of raw materials are batched according to mass ratio, wherein bauxite tailings account for 70%, lithium china stone accounts for 10.5%, and bauxite clinker accounts for 19.5%. According to the ingredients: grinding balls: water = 1:1.5:2, weighed and put into the ball milling tank, after wet grinding for 3 hours, dry at 90°C f...
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