Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of high-activity magnesium oxide
The invention provides a preparation process of high-activity magnesium oxide, and relates to the technical field of chemical preparation. The preparation process of the high-activity magnesium oxide comprises the following steps: S1, taking magnesite of more than four grades, and crushing; s2, concentrate pulp is purified through direct flotation and reverse flotation, and dewatering and drying are conducted; s3, carrying out primary light burning under the condition of 800 to 850 DEG C; s4, screening and separating out impurities; s5, carrying out secondary light burning under the condition of 800 to 850 DEG C; s6, carrying out drying treatment under the condition of 500-800 DEG C, and then cooling; and S7, performing vacuum packaging after grinding and crushing. The method comprises the following steps: crushing magnesite, dissolving the crushed magnesite in water to prepare ore pulp, adding an amine cation trapping agent and a foaming agent, carrying out direct flotation and reverse flotation, carrying out primary purification on the magnesite, carrying out primary light burning under specific process conditions, screening and separating impurities in the magnesite out, and carrying out secondary light burning by the same process adjustment to obtain the high-purity magnesite. Therefore, high-purity and high-activity magnesium oxide can be prepared, and the preparation process is simpler and more feasible.
本发明提供高活性氧化镁制备工艺，涉及化学品制备技术领域。该高活性氧化镁制备工艺，包括以下步骤：S1.取四级以上菱镁矿粉碎；S2.经过正浮选和反浮选提纯出精矿浆，并进行脱水、烘干；S3.在800‑850℃条件下进行一次轻烧；S4.筛选分离出杂质；S5.在800‑850℃条件下进行二次轻烧；S6.在500‑800℃条件下干燥处理，然后冷却；S7.研磨粉碎后进行真空包装。通过先将菱镁矿粉碎后溶于水中制成矿浆，并加入胺类阳离子捕获剂和起泡剂进行正浮选和反浮选，对菱镁矿进行一次提纯，然后通过特定的工艺条件一次轻烧后，再将其中的杂质筛选分离出去，之后以同样的工艺调节进行二次轻烧，从而可以制取高纯度、高活性的氧化镁，而且制备工艺更加简单易行。
Preparation process of high-activity magnesium oxide
The invention provides a preparation process of high-activity magnesium oxide, and relates to the technical field of chemical preparation. The preparation process of the high-activity magnesium oxide comprises the following steps: S1, taking magnesite of more than four grades, and crushing; s2, concentrate pulp is purified through direct flotation and reverse flotation, and dewatering and drying are conducted; s3, carrying out primary light burning under the condition of 800 to 850 DEG C; s4, screening and separating out impurities; s5, carrying out secondary light burning under the condition of 800 to 850 DEG C; s6, carrying out drying treatment under the condition of 500-800 DEG C, and then cooling; and S7, performing vacuum packaging after grinding and crushing. The method comprises the following steps: crushing magnesite, dissolving the crushed magnesite in water to prepare ore pulp, adding an amine cation trapping agent and a foaming agent, carrying out direct flotation and reverse flotation, carrying out primary purification on the magnesite, carrying out primary light burning under specific process conditions, screening and separating impurities in the magnesite out, and carrying out secondary light burning by the same process adjustment to obtain the high-purity magnesite. Therefore, high-purity and high-activity magnesium oxide can be prepared, and the preparation process is simpler and more feasible.
本发明提供高活性氧化镁制备工艺，涉及化学品制备技术领域。该高活性氧化镁制备工艺，包括以下步骤：S1.取四级以上菱镁矿粉碎；S2.经过正浮选和反浮选提纯出精矿浆，并进行脱水、烘干；S3.在800‑850℃条件下进行一次轻烧；S4.筛选分离出杂质；S5.在800‑850℃条件下进行二次轻烧；S6.在500‑800℃条件下干燥处理，然后冷却；S7.研磨粉碎后进行真空包装。通过先将菱镁矿粉碎后溶于水中制成矿浆，并加入胺类阳离子捕获剂和起泡剂进行正浮选和反浮选，对菱镁矿进行一次提纯，然后通过特定的工艺条件一次轻烧后，再将其中的杂质筛选分离出去，之后以同样的工艺调节进行二次轻烧，从而可以制取高纯度、高活性的氧化镁，而且制备工艺更加简单易行。
Preparation process of high-activity magnesium oxide
高活性氧化镁制备工艺
WANG XIAOMING (Autor:in)
18.03.2022
Patent
Elektronische Ressource
Chinesisch
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