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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[0026] Example 1
[0027] A preparation process of superfine modified heavy calcium carbonate includes the following steps:
[0028] (1) Bubble slurry
[0029] Mix the stone powder, water, and sodium polyacrylate thoroughly, including 69kg of stone powder, 26kg of water, 7kg of dispersant, and 30min of soaking time;
[0030] (2) Grinding
[0031] A four-stage wet grinding method is adopted. In the first stage grinding, the slurry flow rate is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 20℃, and the grinding time is 60min; the second level grinding In the three-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 30°C, and the grinding time is 60min; in the three-stage grinding, the flow rate of the slurry is 6t / h, and In the grinding process, add 0.4kg of sodium polyacrylate, the grinding temperature is 30℃, and the grinding ti...
Example Embodiment
[0037] Example 2
[0038] A preparation process of superfine modified heavy calcium carbonate includes the following steps:
[0039] (1) Bubble slurry
[0040] Mix the stone powder, water, and sodium polyacrylate thoroughly, including 74kg of stone powder, 31kg of water, 13kg of dispersant, and 30min of soaking time;
[0041] (2) Grinding
[0042] A four-stage wet grinding method is adopted. In the first stage grinding, the slurry flow rate is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 20℃, and the grinding time is 60min; the second level grinding In the three-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 30°C, and the grinding time is 60min; in the three-stage grinding, the flow rate of the slurry is 6t / h, and In the grinding process, add 0.4kg of sodium polyacrylate, the grinding temperature is 30℃, and the grinding t...
Example Embodiment
[0048] Example 3
[0049] A preparation process of superfine modified heavy calcium carbonate includes the following steps:
[0050] (1) Bubble slurry
[0051] Mix the stone powder, water, and sodium polyacrylate thoroughly, including 72kg of stone powder, 29kg of water, 10kg of dispersant, and 30min of soaking time;
[0052] (2) Grinding
[0053] A four-stage wet grinding method is adopted. In the first stage grinding, the slurry flow rate is 6t / h, and 0.4kg of sodium polyacrylate is added during the grinding process, the grinding temperature is 20℃, and the grinding time is 60min; the second level grinding In the three-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 30°C, and the grinding time is 60min; in the three-stage grinding, the flow rate of the slurry is 6t / h, and In the grinding process, add 0.4kg of sodium polyacrylate, the grinding temperature is 30℃, and the grinding t...
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