Method for industrially preparing aluminum hydroxide, alumina and aluminum fluoride from andalusite sericite phyllite as raw material
A technology of aluminum hydroxide and andalusite, which is applied in the direction of aluminum fluoride, alumina/hydroxide preparation, aluminum halide, etc., can solve the problem of unusable ore and achieve the elimination of grinding process, simple process and low cost Effect
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Embodiment 1
[0070] Step 1: Pelletizing
[0071] Using a pulverizer to crush the andalusite sericite phyllite ore to below 0.1 mm to obtain sericite phyllite powder;
[0072] Use a crusher to crush the limestone ore to less than 0.1mm to obtain limestone powder;
[0073] Sericite phyllite powder, limestone powder and sodium carbonate are put into the pelletizing machine to make pellets with a particle size of 40mm;
[0074] Dosage: Add 30g of limestone powder and 5g of sodium carbonate to 100g of sericite phyllite powder;
[0075] The second step: pulping
[0076] Calcining the pellets prepared in the first step in a rotary kiln at a temperature of 1250°C for 60 minutes to obtain a calcined material;
[0077] Then the calcined material is moved out of the kiln with the rotation of the rotary kiln and enters the ball mill, and tap water is added to obtain the sericite phyllite slurry;
[0078] Dosage: Add 500ml of tap water to 100g of roasting material;
[0079] The third step: impurit...
Embodiment 2
[0100] Step 1: Pelletizing
[0101] Using a pulverizer to crush the andalusite sericite phyllite ore to below 0.1 mm to obtain sericite phyllite powder;
[0102] Use a crusher to crush the limestone ore to less than 0.1mm to obtain limestone powder;
[0103] Put sericite phyllite powder, limestone powder and sodium carbonate into the pellet machine to make pellets with a particle size of about 20mm;
[0104] Dosage: Add 40g of limestone powder and 7g of sodium carbonate to 100g of sericite phyllite powder;
[0105] The second step: pulping
[0106] Calcining the pellets prepared in the first step in a rotary kiln at a temperature of 1300°C for 40 minutes to obtain a calcined material;
[0107] Then the calcined material is moved out of the kiln with the rotation of the rotary kiln and enters the ball mill, and tap water is added to obtain the sericite phyllite slurry;
[0108] Dosage: Add 400ml of tap water to 100g of roasting material;
[0109] The third step: impurity r...
Embodiment 3
[0130] Step 1: Pelletizing
[0131] Using a pulverizer to crush the andalusite sericite phyllite ore to below 0.1 mm to obtain sericite phyllite powder;
[0132] Use a crusher to crush the limestone ore to less than 0.1mm to obtain limestone powder;
[0133] Sericite phyllite powder, limestone powder and sodium carbonate are put into the pelletizing machine to obtain pellets with a particle size of 60mm;
[0134] Dosage: Add 35g of limestone powder and 3g of sodium carbonate to 100g of sericite phyllite powder;
[0135] The second step: pulping
[0136] Calcining the pellets prepared in the first step in a rotary kiln at a temperature of 1250°C for 50 minutes to obtain a calcined material;
[0137] Then the calcined material is moved out of the kiln with the rotation of the rotary kiln and enters the ball mill, and tap water is added to obtain the sericite phyllite slurry;
[0138] Dosage: Add 600ml of tap water to 100g of roasting material;
[0139] The third step: impur...
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