Method for producing low-iron limestone
A production method and limestone technology, applied in the direction of calcium/strontium/barium oxide/hydroxide, etc., can solve the problems of low production efficiency, complicated procedures, and high processing cost, and achieve improved production efficiency, accelerated reaction speed, and excellent quality. Effect
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Embodiment 1
[0030] A method for producing low-iron limestone, comprising the following steps:
[0031] 1. Crush limestone minerals, pass through a 16-mesh sieve, and then pass through a 12000GS permanent magnet rod to obtain limestone powder;
[0032] 2. Take the raw materials in the following parts by weight: 20% by weight of hydrochloric acid 120kg, 35% by weight of acetic acid 150kg, and 15% by weight of phosphorus trichloride 20kg, mix to obtain mixture A;
[0033] 3. Mix mixture A and water at a weight ratio of 1:200, and stir evenly to obtain mixture B;
[0034] 4. Heat the limestone powder to a temperature of 90°C under a thermostat, put the limestone powder into the upper layer of the mixing box, mix the mineral powder and the mixture B at a weight ratio of 1:4, stir for 3 minutes, and put it into a stirring tank with a sieve at the bottom. In the middle layer of the box, filter, the filtered solution is placed in the lower layer of the mixing box, the mineral powder is placed on t...
Embodiment 2
[0038] A method for producing low-iron limestone, comprising the following steps:
[0039] 1. Crush the limestone, pass through a 10-mesh sieve, and then pass through a 10,000GS permanent magnet rod to obtain limestone powder;
[0040] 2. Take the raw materials in the following parts by weight: 100 kg of hydrochloric acid 15% by weight, 120 kg of acetic acid 120 kg of 30% by weight, 12 kg of phosphorus trichloride 8% by weight, and mix to obtain mixture A;
[0041] 3. Mix mixture A and water at a weight ratio of 1:100, and stir evenly to obtain mixture B;
[0042] 4. Heat the limestone powder to a temperature of 80°C under the thermostat, put the limestone powder into the upper layer of the mixing box, mix the mineral powder and the mixture B at a weight ratio of 1:3, stir for 2 minutes, and put it into the stirring tank with a sieve at the bottom. The middle layer of the box is filtered, and the filtered solution is placed in the lower layer of the stirring box, and the mine...
Embodiment 3
[0045] A method for producing low-iron limestone, comprising the following steps:
[0046] 1. Crush the limestone, pass it through an 8-mesh sieve, and then pass it through a 1000GS permanent magnet drum to obtain limestone powder;
[0047] 2. Take the raw materials in the following parts by weight: 85 kg of 12% hydrochloric acid by weight, 95 kg of 28% acetic acid by weight, and mix to obtain mixture A;
[0048] 3. Mix mixture A and water at a weight ratio of 1:80, and stir evenly to obtain mixture B;
[0049] 4. Heat the limestone powder to a temperature of 75°C under a thermostat, put the limestone powder into the upper layer of the mixing box, mix the mineral powder and the mixture B at a weight ratio of 1:3.5, stir for 2 minutes, and put it into a stirring tank with a screen at the bottom. In the middle layer of the box, filter, the filtered solution is placed in the lower layer of the mixing box, the mineral powder is placed on the conveyor belt, and dried;
[0050] 5....
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