A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing active magnesium oxide from magnesium slag and preparation method of magnesium cement
The invention discloses a method for preparing active magnesium oxide from magnesium slag and a preparation method of magnesium cement, wherein the method for preparing the active magnesium oxide fromthe magnesium slag comprises the steps: calcining the magnesium slag at the calcination temperature of 400-800 DEG C to obtain a calcined product, wherein the magnesium slag is a byproduct magnesiumslag of a calcination lithium extraction process, and the magnesium slag also contains magnesium borate impurities. The preparation method for the magnesium cement from the magnesium slag comprises the steps: calcining the magnesium slag at the calcining temperature of 400-800 DEG C to obtain a calcined product; and mixing the calcined product, magnesium chloride and water, and curing to obtain the magnesium cement. According to the method for preparing the active magnesium oxide from the magnesium slag, the lithium-extracted magnesium slag containing more impurity ions is used as a raw material, a magnesium oxide product with higher activity is obtained by adjusting calcining conditions, and the magnesium oxide is further used for preparing the magnesium cement, so that the purpose of converting a large number of waste low-value byproducts into practical industrial raw materials is achieved.
本发明公开了一种镁渣制备活性氧化镁的方法及镁水泥的制备方法，该镁渣制备活性氧化镁的方法，包括在400～800℃煅烧温度下煅烧镁渣，获得煅烧产物；其中，镁渣是煅烧提锂工艺的副产镁渣，镁渣中还包含硼酸镁杂质。前述镁渣制备镁水泥的方法，包括在400～800℃煅烧温度下煅烧镁渣，获得煅烧产物；将煅烧产物、氯化镁和水混合，养护后得到镁水泥。本发明提供的镁渣制备活性氧化镁的方法以含有较多杂质离子的提锂镁渣作为原料，经过调节煅烧条件获得了活性较高的氧化镁产物，并进一步利用该氧化镁制备镁水泥，实现了将大量废弃的低价值副产物转化成实用工业原料的目的。
Method for preparing active magnesium oxide from magnesium slag and preparation method of magnesium cement
The invention discloses a method for preparing active magnesium oxide from magnesium slag and a preparation method of magnesium cement, wherein the method for preparing the active magnesium oxide fromthe magnesium slag comprises the steps: calcining the magnesium slag at the calcination temperature of 400-800 DEG C to obtain a calcined product, wherein the magnesium slag is a byproduct magnesiumslag of a calcination lithium extraction process, and the magnesium slag also contains magnesium borate impurities. The preparation method for the magnesium cement from the magnesium slag comprises the steps: calcining the magnesium slag at the calcining temperature of 400-800 DEG C to obtain a calcined product; and mixing the calcined product, magnesium chloride and water, and curing to obtain the magnesium cement. According to the method for preparing the active magnesium oxide from the magnesium slag, the lithium-extracted magnesium slag containing more impurity ions is used as a raw material, a magnesium oxide product with higher activity is obtained by adjusting calcining conditions, and the magnesium oxide is further used for preparing the magnesium cement, so that the purpose of converting a large number of waste low-value byproducts into practical industrial raw materials is achieved.
本发明公开了一种镁渣制备活性氧化镁的方法及镁水泥的制备方法，该镁渣制备活性氧化镁的方法，包括在400～800℃煅烧温度下煅烧镁渣，获得煅烧产物；其中，镁渣是煅烧提锂工艺的副产镁渣，镁渣中还包含硼酸镁杂质。前述镁渣制备镁水泥的方法，包括在400～800℃煅烧温度下煅烧镁渣，获得煅烧产物；将煅烧产物、氯化镁和水混合，养护后得到镁水泥。本发明提供的镁渣制备活性氧化镁的方法以含有较多杂质离子的提锂镁渣作为原料，经过调节煅烧条件获得了活性较高的氧化镁产物，并进一步利用该氧化镁制备镁水泥，实现了将大量废弃的低价值副产物转化成实用工业原料的目的。
Method for preparing active magnesium oxide from magnesium slag and preparation method of magnesium cement
一种镁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) / LI YING (author) / DONG JINMEI (author) / ZHENG WEIXIN (author) / CHANG CHENGGONG (author) / ZHANG ZHIHONG (author)
2020-09-08
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
| European Patent Office | 2020
Method for preparing magnesium phosphate cement paste from magnesium ore powder
| European Patent Office | 2021
Ferronickel slag-based magnesium oxychloride cement and preparation method thereof
| European Patent Office | 2023