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A platform for research: civil engineering, architecture and urbanism
Dolomite treatment method
The invention relates to a dolomite treatment method which comprises the following steps: carrying out first calcination treatment on a dolomite raw material at 790-810 DEG C to obtain calcined dolomite; preparing the calcined dolomite and water into an emulsion; introducing carbon dioxide into the emulsion to obtain a carbonized solution; and filtering the carbonized solution to obtain the refined heavy magnesium water. The dolomite raw material is subjected to first calcination treatment at 790-810 DEG C, so that only a small part of calcium carbonate in the dolomite raw material is decomposed, the energy consumption and carbon dioxide consumption of the dolomite calcination process are reduced, and the cost is saved; in addition, in the carbonization process, the concentration of dissolved calcium ions can be always kept at a low level, and high-purity basic magnesium carbonate is easily obtained.
本申请涉及一种白云石的处理方法，所述白云石的处理方法包括如下步骤：对白云石原料在790～810℃下进行第一煅烧处理，得到煅后白云石；将所述煅后白云石与水配制成乳液；向所述乳液通入二氧化碳，得到碳化液；过滤所述碳化液，得到精制重镁水。本申请通过在790～810℃下对白云石原料进行第一煅烧处理，使得白云石原料中仅小部分碳酸钙发生分解，降低了白云石煅烧工艺的能耗和二氧化碳消耗量，节省成本；此外本申请碳化过程中溶态的钙离子浓度始终可以保持低水平，容易得到高纯度的碱式碳酸镁。
Dolomite treatment method
The invention relates to a dolomite treatment method which comprises the following steps: carrying out first calcination treatment on a dolomite raw material at 790-810 DEG C to obtain calcined dolomite; preparing the calcined dolomite and water into an emulsion; introducing carbon dioxide into the emulsion to obtain a carbonized solution; and filtering the carbonized solution to obtain the refined heavy magnesium water. The dolomite raw material is subjected to first calcination treatment at 790-810 DEG C, so that only a small part of calcium carbonate in the dolomite raw material is decomposed, the energy consumption and carbon dioxide consumption of the dolomite calcination process are reduced, and the cost is saved; in addition, in the carbonization process, the concentration of dissolved calcium ions can be always kept at a low level, and high-purity basic magnesium carbonate is easily obtained.
本申请涉及一种白云石的处理方法，所述白云石的处理方法包括如下步骤：对白云石原料在790～810℃下进行第一煅烧处理，得到煅后白云石；将所述煅后白云石与水配制成乳液；向所述乳液通入二氧化碳，得到碳化液；过滤所述碳化液，得到精制重镁水。本申请通过在790～810℃下对白云石原料进行第一煅烧处理，使得白云石原料中仅小部分碳酸钙发生分解，降低了白云石煅烧工艺的能耗和二氧化碳消耗量，节省成本；此外本申请碳化过程中溶态的钙离子浓度始终可以保持低水平，容易得到高纯度的碱式碳酸镁。
Dolomite treatment method
一种白云石的处理方法
BAI YANG (author) / LI HANYU (author) / MENG HAOJIE (author) / LI FENG (author) / CHEN QINGFENG (author) / MIAO ZHUANG (author)
2024-09-06
Patent
Electronic Resource
Chinese
DOLOMITE RESOURCE DEEP UTILIZATION COMPLETE TREATMENT SYSTEM AND METHOD
| European Patent Office | 2023