Bauxite separation flocculant and preparation method thereof
A flocculant and bauxite technology, which is applied in the field of bauxite beneficiation flocculant and its preparation, can solve the problems of increased dosage of chemicals, poor effect, and difficulty in press filtration of beneficiation products
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Embodiment 1
[0038] A high-grade flocculant for processing bauxite beneficiation products, the preparation method of which is as follows:
[0039] Weigh 90g of acrylamide, 5g of acrylic acid, 2g of acrylhydroxamic acid, and 3g of acrylsulfonic acid, adjust the pH to 6.5 with sodium carbon solution, configure a solution with a monomer concentration of 30%, stir and add urea with a mass fraction of 10g and 0.5g of NdCl 3 -PrOH, blow nitrogen gas to remove oxygen for 20 minutes, add 1 g of initiator sodium persulfate / sodium bisulfite at one time, keep the temperature at 35~40°C, add 2% sodium propylene hydroxamate and sodium propylene sulfonate solution dropwise (drop Adding time is 0.5h), react for 2h, and the synthesized colloid is washed, granulated, dried, etc. to finally obtain a white granular flocculant product.
[0040] Configure 1‰ flocculant solution, take 2000ml of high-sulfur bauxite dressing tailings, the slurry concentration is about 10%, and the amount of flocculant added is a...
Embodiment 2
[0042] A high-grade flocculant for processing bauxite beneficiation products, the preparation method of which is as follows:
[0043] Weigh 40g of acrylamide, 52g of acrylic acid, 3g of acrylhydroxamic acid, and 5g of acrylsulfonic acid, adjust the pH to 8 with sodium carbon solution, configure a solution with a monomer concentration of 25%, stir and add urea with a mass fraction of 10g and 0.5g of NdCl 3-PrOH, blow nitrogen gas to remove oxygen for 20 minutes, add 1 g of initiator sodium persulfate / sodium bisulfite at one time, keep the temperature at 35~40°C, add 2% sodium propylene hydroxamate and sodium propylene sulfonate solution dropwise (drop Adding time is 1h), react for 3h, and the synthesized colloid is washed, granulated, dried, etc. to finally obtain a white granular flocculant product.
[0044] Configure 1‰ flocculant solution, take 2000ml of high-iron bauxite dressing tailings, the slurry concentration is about 6%, and the amount of flocculant added is about 15...
Embodiment 3
[0046] A high-grade flocculant for processing bauxite beneficiation products, the preparation method of which is as follows:
[0047] Weigh 57g of acrylamide, 40g of acrylic acid, 1g of acrylhydroxamic acid, and 3g of acrylsulfonic acid, adjust the pH to 8.0 with sodium carbon solution, configure a solution with a monomer concentration of 25%, stir and add urea with a mass fraction of 10g and 0.6g of NdCl 3 -PrOH, blow nitrogen gas to remove oxygen for 20 minutes, add 1 g of initiator sodium persulfate / sodium bisulfite at one time, keep the temperature at 35~40°C, add 2% sodium propylene hydroxamate and sodium propylene sulfonate solution dropwise (drop Adding time is 0.5h), react for 2h, and the synthesized colloid is washed, granulated, dried, etc. to finally obtain a white granular flocculant product.
[0048] Configure 1‰ flocculant solution, take 2000ml of high-silicon bauxite concentrate, the pulp concentration is about 12%, and the amount of flocculant added is about 6...
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