Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-activity magnesium oxide based on low-grade magnesite
The invention discloses a method for preparing high-activity magnesium oxide based on low-grade magnesite, which is characterized by comprising the following steps: (1) magnesite is sampled, and the content of magnesium oxide is 40-42.5%; (2) calcining the magnesite sample, and preserving heat; and (3) carrying out ball milling on the sample obtained in the step (2) by adopting a planetary ball mill, and screening to obtain the product. The low-grade magnesite is used as the raw material, waste is turned into wealth, the method is green and environment-friendly, and the raw material cost is effectively reduced. According to the invention, high-activity magnesium oxide can be prepared through combination of calcination, ball milling and screening processes. Compared with a carbonization method, a precipitation method and other chemical methods for producing high-activity magnesium oxide, the process steps are greatly simplified, the production period is effectively shortened, and the production cost can be reduced. The magnesium oxide prepared by the method is high in activity and can be used for preparing a cementing material.
本发明公开了一种基于低品位菱镁矿制备高活性氧化镁的方法，其特征在于，包括以下步骤：(1)菱镁矿取样，其中氧化镁的含量为40‑42.5％；(2)将菱镁矿样品煅烧处理后保温；(3)对步骤(2)的样品采用行星式球磨机进行球磨，再经筛分即得。本发明以低品位菱镁矿为原料，变废为宝，绿色环保，有效降低原料成本。本发明通过煅烧结合球磨和筛分工艺，即可制备高活性的氧化镁。同碳化法、沉淀法等化学法生产高活性氧化镁相比，大幅简化工艺步骤，有效缩短生产周期，并可以降低生产成本。本发明所制备的氧化镁活性高，可用于制备胶结材料。
Method for preparing high-activity magnesium oxide based on low-grade magnesite
The invention discloses a method for preparing high-activity magnesium oxide based on low-grade magnesite, which is characterized by comprising the following steps: (1) magnesite is sampled, and the content of magnesium oxide is 40-42.5%; (2) calcining the magnesite sample, and preserving heat; and (3) carrying out ball milling on the sample obtained in the step (2) by adopting a planetary ball mill, and screening to obtain the product. The low-grade magnesite is used as the raw material, waste is turned into wealth, the method is green and environment-friendly, and the raw material cost is effectively reduced. According to the invention, high-activity magnesium oxide can be prepared through combination of calcination, ball milling and screening processes. Compared with a carbonization method, a precipitation method and other chemical methods for producing high-activity magnesium oxide, the process steps are greatly simplified, the production period is effectively shortened, and the production cost can be reduced. The magnesium oxide prepared by the method is high in activity and can be used for preparing a cementing material.
本发明公开了一种基于低品位菱镁矿制备高活性氧化镁的方法，其特征在于，包括以下步骤：(1)菱镁矿取样，其中氧化镁的含量为40‑42.5％；(2)将菱镁矿样品煅烧处理后保温；(3)对步骤(2)的样品采用行星式球磨机进行球磨，再经筛分即得。本发明以低品位菱镁矿为原料，变废为宝，绿色环保，有效降低原料成本。本发明通过煅烧结合球磨和筛分工艺，即可制备高活性的氧化镁。同碳化法、沉淀法等化学法生产高活性氧化镁相比，大幅简化工艺步骤，有效缩短生产周期，并可以降低生产成本。本发明所制备的氧化镁活性高，可用于制备胶结材料。
Method for preparing high-activity magnesium oxide based on low-grade magnesite
一种基于低品位菱镁矿制备高活性氧化镁的方法
LIN AN (Autor:in) / LIU XIAOWEI (Autor:in) / CHEN BO (Autor:in) / ZHAO ZHENDONG (Autor:in)
18.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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