Application of an inhibitor acrylic acid-maleic acid copolymer sodium salt in phosphate rock flotation magnesium removal
A technology of acrylic acid and acrylic acid copolymer, which is applied in the field of salt mineral flotation separation and phosphate rock flotation demagnesia, which can solve the problems affecting the comprehensive utilization of low-grade phosphate rock and the low separation efficiency of apatite and dolomite , High magnesium impurity content in phosphate concentrate, achieve good selective inhibition, easy commercial acquisition, and improve the effect of sorting indicators
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Embodiment 1
[0044] The application of a kind of inhibitor acrylic acid maleic acid copolymer sodium salt in phosphate rock flotation demagnesia, the process flow chart of its implementation is as follows figure 1 As shown, it specifically includes the following steps:
[0045] Step 1: Grinding
[0046] The high-magnesium and low-grade phosphate ore lumps are crushed by the jaw crusher and then by the roller crusher to less than 2mm, and then ground by a ceramic ball mill to obtain phosphate rock powder; among them, for phosphate rock powder , the mass of phosphate rock powder less than 74 μm accounts for 70% of the total mass of phosphate rock powder;
[0047] Step 2: Blending
[0048] Under the condition of 22°C, put the above-mentioned phosphate rock powder into the flotation equipment-flotation machine, add deionized water, stir and adjust the slurry for 2 minutes, and obtain the phosphate rock slurry; wherein, in the phosphate rock slurry, the phosphate rock The mass percentage con...
Embodiment 2
[0055] The application of a kind of inhibitor acrylic acid maleic acid copolymer sodium salt in phosphate rock flotation demagnesia, specifically comprises the following steps:
[0056] Step 1: Grinding
[0057] The high-magnesium and low-grade phosphate ore lumps are crushed by the jaw crusher and then by the roller crusher to less than 2mm, and then ground by a ceramic ball mill to obtain phosphate rock powder; among them, for phosphate rock powder , the mass of phosphate rock powder less than 74 μm accounts for 80% of the total mass of phosphate rock powder;
[0058] Step 2: Blending
[0059] Under the condition of 23°C, put the above-mentioned phosphate rock powder into the flotation equipment-flotation machine, add deionized water, stir and adjust the slurry for 2 minutes, and obtain the phosphate rock slurry; wherein, in the phosphate rock slurry, the phosphate rock The mass percentage concentration is 25%; then add a strong alkali NaOH aqueous solution with a mass per...
Embodiment 3
[0066] The application of a kind of inhibitor acrylic acid maleic acid copolymer sodium salt in phosphate rock flotation demagnesia, specifically comprises the following steps:
[0067] Step 1: Grinding
[0068] The high-magnesium and low-grade phosphate ore lumps are crushed by the jaw crusher and then by the roller crusher to less than 2mm, and then ground by a ceramic ball mill to obtain phosphate rock powder; among them, for phosphate rock powder , the mass of phosphate rock powder particles smaller than 74 μm accounts for 75% of the total mass of phosphate rock powder;
[0069] Step 2: Blending
[0070] Under the condition of 20°C, put the above-mentioned phosphate rock powder into the flotation equipment-flotation machine, add deionized water, stir and adjust the slurry for 2 minutes, and obtain the phosphate rock slurry; wherein, in the phosphate rock slurry, the phosphate rock The mass percentage concentration is 30%; then add a strong alkali NaOH aqueous solution wi...
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Abstract
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