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Method for preparing active magnesium oxide from carbide slag and preparation method of magnesium cement
The invention discloses a method for preparing active magnesium oxide from carbide slag and a preparation method of magnesium cement. The method for preparing the active magnesium oxide from carbide slag comprises the following steps of: S1, preparing carbide slag and magnesium chloride into slurry, and carrying out reaction to generate a precursor; and S2, calcining the precursor at 500-900DEG Cfor less than 60min to obtain a calcined product, wherein the activity of magnesium oxide in the calcined product is 80% or more. The preparation method of magnesium cement comprises the following steps of: conducting the above steps of preparing the active magnesium oxide from the carbide slag; then mixing the calcined product, magnesium chloride and water according to a certain ratio to obtain magnesium cement; wherein the mass ratio of the active magnesium oxide to the magnesium chloride is 5-8:1, and the mass ratio of the magnesium chloride to water is 1:8-19. The two processes have greatsignificance in solving the treatment problem of salt lake by-products magnesium chloride and carbide slag.
本发明公开了一种电石渣制备活性氧化镁的方法及镁水泥的制备方法，该电石渣制备活性氧化镁的方法包括步骤：S1、将电石渣与氯化镁配成浆料，反应生成前驱体；S2、在500～900℃条件下煅烧前驱体小于60min，获得煅烧产物，其中，煅烧产物中氧化镁的活性在80％以上。镁水泥的制备方法包括：前述电石渣制备活性氧化镁的方法的步骤；然后将所述煅烧产物、氯化镁和水按照一定的比例混合，获得镁水泥；其中，活性氧化镁与氯化镁的物质的量之比为5～8:1，氯化镁与水的物质的量之比为1:8～19。前述的两项工艺对于解决盐湖副产氯化镁和电石渣的处理难题具有极大的意义。
Method for preparing active magnesium oxide from carbide slag and preparation method of magnesium cement
The invention discloses a method for preparing active magnesium oxide from carbide slag and a preparation method of magnesium cement. The method for preparing the active magnesium oxide from carbide slag comprises the following steps of: S1, preparing carbide slag and magnesium chloride into slurry, and carrying out reaction to generate a precursor; and S2, calcining the precursor at 500-900DEG Cfor less than 60min to obtain a calcined product, wherein the activity of magnesium oxide in the calcined product is 80% or more. The preparation method of magnesium cement comprises the following steps of: conducting the above steps of preparing the active magnesium oxide from the carbide slag; then mixing the calcined product, magnesium chloride and water according to a certain ratio to obtain magnesium cement; wherein the mass ratio of the active magnesium oxide to the magnesium chloride is 5-8:1, and the mass ratio of the magnesium chloride to water is 1:8-19. The two processes have greatsignificance in solving the treatment problem of salt lake by-products magnesium chloride and carbide slag.
本发明公开了一种电石渣制备活性氧化镁的方法及镁水泥的制备方法，该电石渣制备活性氧化镁的方法包括步骤：S1、将电石渣与氯化镁配成浆料，反应生成前驱体；S2、在500～900℃条件下煅烧前驱体小于60min，获得煅烧产物，其中，煅烧产物中氧化镁的活性在80％以上。镁水泥的制备方法包括：前述电石渣制备活性氧化镁的方法的步骤；然后将所述煅烧产物、氯化镁和水按照一定的比例混合，获得镁水泥；其中，活性氧化镁与氯化镁的物质的量之比为5～8:1，氯化镁与水的物质的量之比为1:8～19。前述的两项工艺对于解决盐湖副产氯化镁和电石渣的处理难题具有极大的意义。
Method for preparing active magnesium oxide from carbide slag and preparation method of magnesium cement
一种电石渣制备活性氧化镁的方法及镁水泥的制备方法
XIAO XUEYING (author) / WEN JING (author) / CHANG CHENGGONG (author) / ZHENG WEIXIN (author) / DONG JINMEI (author) / LI YING (author)
2020-09-11
Patent
Electronic Resource
Chinese
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