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 by microwave activation of magnesite
The invention discloses a method for preparing high-activity magnesium oxide by microwave activation of magnesite, which comprises the following steps: calcining a magnesite raw material in a high-temperature calcining furnace at the calcining temperature of 750-950 DEG C for 2.5-4.5 hours; light calcined magnesia powder obtained through calcination is put into a grinding machine, secondary smashing can be carried out, and the smashing effect can be guaranteed; the light calcined magnesia powder obtained after secondary crushing is put into deionized water, and a mixed solution is fed into a stirrer, so that the solution can be stirred and mixed for 1-2 h; according to the invention, the hydration product magnesium hydroxide slurry of magnesite is dried and then is subjected to microwave heating, and the activation and thermal decomposition processes are completed at the same time, so that the process is saved, the production efficiency is improved, the operation is simple and feasible, and the problem that the existing active magnesium oxide preparation method mainly adopts an ammonium salt method, a carbonation method and an acid leaching method, and the cost is low is solved. And the reaction process of the method is relatively complex.
本发明公开了一种利用菱镁矿微波活化制备高活性氧化镁的方法，其制备方法包括以下步骤：将菱镁矿原料放置在高温煅烧炉中进行煅烧，煅烧温度为750℃‑950℃，煅烧时间为2.5h‑4.5h；将煅烧获得的轻烧氧化镁粉放入研磨机中，可以进行二次粉碎，可以保证粉碎效果；将二次粉碎后的轻烧氧化镁粉放入去离子水中，并将混合溶液送入搅拌机中，从而可以对溶液进行搅拌混合，混合时间为1h‑2h。本发明通过对菱镁矿的水化产物氢氧化镁料浆干燥后进行微波加热，同时完成活化和热分解过程，节省工序，提高生产效率，且操作简单易行，解决了现在的活性氧化镁的制备方法主要采用铵盐法、碳酸化法和酸浸法，其方法反应过程较为复杂的问题。
Method for preparing high-activity magnesium oxide by microwave activation of magnesite
The invention discloses a method for preparing high-activity magnesium oxide by microwave activation of magnesite, which comprises the following steps: calcining a magnesite raw material in a high-temperature calcining furnace at the calcining temperature of 750-950 DEG C for 2.5-4.5 hours; light calcined magnesia powder obtained through calcination is put into a grinding machine, secondary smashing can be carried out, and the smashing effect can be guaranteed; the light calcined magnesia powder obtained after secondary crushing is put into deionized water, and a mixed solution is fed into a stirrer, so that the solution can be stirred and mixed for 1-2 h; according to the invention, the hydration product magnesium hydroxide slurry of magnesite is dried and then is subjected to microwave heating, and the activation and thermal decomposition processes are completed at the same time, so that the process is saved, the production efficiency is improved, the operation is simple and feasible, and the problem that the existing active magnesium oxide preparation method mainly adopts an ammonium salt method, a carbonation method and an acid leaching method, and the cost is low is solved. And the reaction process of the method is relatively complex.
本发明公开了一种利用菱镁矿微波活化制备高活性氧化镁的方法，其制备方法包括以下步骤：将菱镁矿原料放置在高温煅烧炉中进行煅烧，煅烧温度为750℃‑950℃，煅烧时间为2.5h‑4.5h；将煅烧获得的轻烧氧化镁粉放入研磨机中，可以进行二次粉碎，可以保证粉碎效果；将二次粉碎后的轻烧氧化镁粉放入去离子水中，并将混合溶液送入搅拌机中，从而可以对溶液进行搅拌混合，混合时间为1h‑2h。本发明通过对菱镁矿的水化产物氢氧化镁料浆干燥后进行微波加热，同时完成活化和热分解过程，节省工序，提高生产效率，且操作简单易行，解决了现在的活性氧化镁的制备方法主要采用铵盐法、碳酸化法和酸浸法，其方法反应过程较为复杂的问题。
Method for preparing high-activity magnesium oxide by microwave activation of magnesite
一种利用菱镁矿微波活化制备高活性氧化镁的方法
ZHOU YUANPENG (Autor:in) / PAN ZHENZHONG (Autor:in) / DONG JUNJIANG (Autor:in) / LIU WENZHE (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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