Preparation method of superfine modified ground limestone
A technology for the preparation of heavy calcium carbonate, which is applied in the fields of dyeing physical treatment, dyeing low-molecular organic compound treatment, and fibrous fillers. low level problem
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Embodiment 1
[0027] A preparation process for superfine modified ground calcium carbonate, comprising the steps of:
[0028] (1) bubble paste
[0029] Fully mix stone powder, water, and sodium polyacrylate, including 69kg of stone powder, 26kg of water, 7kg of dispersant, and 30 minutes of soaking time;
[0030] (2) grinding
[0031] A four-stage wet grinding method is adopted. In the first-stage grinding, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process. The grinding temperature is 20°C and the grinding time is 60min; the second-level grinding In the process, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min; in the third-stage grinding, the flow rate of the slurry is 6t / h, and Add 0.4kg of sodium polyacrylate during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min; in th...
Embodiment 2
[0038] A kind of preparation technology of superfine modified ground calcium carbonate, comprises the steps:
[0039] (1) bubble paste
[0040] Fully mix stone powder, water, and sodium polyacrylate, including 74kg of stone powder, 31kg of water, 13kg of dispersant, and 30 minutes of soaking time;
[0041] (2) grinding
[0042] A four-stage wet grinding method is adopted. In the first-stage grinding, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process. The grinding temperature is 20°C and the grinding time is 60min; the second-level grinding In the process, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min; in the third-stage grinding, the flow rate of the slurry is 6t / h, and Add 0.4kg of sodium polyacrylate during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min...
Embodiment 3
[0049] A kind of preparation technology of superfine modified ground calcium carbonate, comprises the steps:
[0050] (1) bubble paste
[0051] Fully mix stone powder, water, and sodium polyacrylate, including 72kg of stone powder, 29kg of water, 10kg of dispersant, and 30 minutes of soaking time;
[0052] (2) grinding
[0053] A four-stage wet grinding method is adopted. In the first-stage grinding, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process. The grinding temperature is 20°C and the grinding time is 60min; the second-level grinding In the process, the flow rate of the slurry is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min; in the third-stage grinding, the flow rate of the slurry is 6t / h, and Add 0.4kg of sodium polyacrylate during the grinding process, the grinding temperature is 30°C, and the grinding time is 60min...
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