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Preparation method of superfine dolomite powder
The invention discloses a preparation method of superfine dolomite powder, which comprises the following steps: S1, separating to remove impurities in dolomite ore, and then carrying out crushing and ball milling treatment to obtain a dolomite powder crude product; s2, calcining the dolomite powder crude product, naturally cooling, and mixing with water according to a mass ratio of 1: 20 to obtain dolomite slurry; s3, mixing the dolomite slurry with the modified phosphorus slag powder, polyvinyl acetate, phosphoric acid ethylenediamine, nano silicon dioxide and sodium hexametaphosphate, and performing wet grinding to obtain a mixture; and S4, carrying out filter pressing on the mixture to obtain the superfine dolomite powder. The superfine dolomite powder prepared by the method is fine in particle size, 90% of the dolomite powder is less than 2 microns in particle size, and the superfine dolomite powder has a good market application prospect and can be used for enhancing the strength of concrete.
本发明公开了一种超细白云石粉的制备方法，包括以下步骤：S1、分离去除白云石矿中的杂质，再进行破碎、球磨处理，得到白云石粉粗品；S2、将所述白云石粉粗品进行煅烧，自然冷却后，按质量比1:20与水混合，得到白云石浆液；S3、将白云石浆液和改性磷渣粉、聚醋酸乙烯、磷酸乙二胺、纳米二氧化硅、六偏磷酸钠混合，进行湿法研磨，得混合料；S4、再将混合料进行压滤，得到所述超细白云石粉。采用本发明方法制备的超细白云石粉粒径细小，90％的粒径2μm以下，具有很好的市场应用前景，可用于增强混凝土强度。
Preparation method of superfine dolomite powder
The invention discloses a preparation method of superfine dolomite powder, which comprises the following steps: S1, separating to remove impurities in dolomite ore, and then carrying out crushing and ball milling treatment to obtain a dolomite powder crude product; s2, calcining the dolomite powder crude product, naturally cooling, and mixing with water according to a mass ratio of 1: 20 to obtain dolomite slurry; s3, mixing the dolomite slurry with the modified phosphorus slag powder, polyvinyl acetate, phosphoric acid ethylenediamine, nano silicon dioxide and sodium hexametaphosphate, and performing wet grinding to obtain a mixture; and S4, carrying out filter pressing on the mixture to obtain the superfine dolomite powder. The superfine dolomite powder prepared by the method is fine in particle size, 90% of the dolomite powder is less than 2 microns in particle size, and the superfine dolomite powder has a good market application prospect and can be used for enhancing the strength of concrete.
本发明公开了一种超细白云石粉的制备方法，包括以下步骤：S1、分离去除白云石矿中的杂质，再进行破碎、球磨处理，得到白云石粉粗品；S2、将所述白云石粉粗品进行煅烧，自然冷却后，按质量比1:20与水混合，得到白云石浆液；S3、将白云石浆液和改性磷渣粉、聚醋酸乙烯、磷酸乙二胺、纳米二氧化硅、六偏磷酸钠混合，进行湿法研磨，得混合料；S4、再将混合料进行压滤，得到所述超细白云石粉。采用本发明方法制备的超细白云石粉粒径细小，90％的粒径2μm以下，具有很好的市场应用前景，可用于增强混凝土强度。
Preparation method of superfine dolomite powder
一种超细白云石粉的制备方法
SHI WEIJUAN (author) / LI RUI (author)
2024-09-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Composite superfine slag powder and preparation method thereof
| European Patent Office | 2015