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A platform for research: civil engineering, architecture and urbanism
Carbonizable magnesium oxide cementing material produced by electrolyzing seawater and preparation method of carbonizable magnesium oxide cementing material
The invention relates to a carbonizable magnesium oxide cementing material produced by electrolyzing seawater and a preparation method of the carbonizable magnesium oxide cementing material, and the specific process comprises the following steps: (1) constructing an electrolytic tank with a cathode and an anode, and arranging an ion exchange membrane between the cathode and the anode in the electrolytic tank; (2) introducing seawater into the electrolytic tank, electrifying to electrolyze, ionizing the seawater to generate ions, and enriching Mg < 2 + > in a cathode region under the filtering action of an ion exchange membrane; (3) regulating and controlling the pH value of the cathode region, so that Mg < 2 + > is completely precipitated to form magnesium hydroxide; and (4) calcining the obtained magnesium hydroxide to obtain the target product carbonizable magnesium oxide cementing material. Compared with the prior art, the main raw material seawater utilized by the cementing material is wide in source and low in cost, and the obtained cementing material has high purity and high carbonization activity, can form a high-strength product by absorbing carbon dioxide, and is of great significance in carbon neutralization in the building material industry in China.
本发明涉及一种电解海水生产的可碳化氧化镁胶凝材料及其制备方法，具体工艺过程为：(1)构建装有阴极和阳极的电解池，且在电解池中还设有置于阴极和阳极之间的离子交换膜；(2)往电解池中引入海水，通电进行电解，使得海水电离产生离子，并经离子交换膜的过滤作用，在阴极区域富集Mg2+；(3)调控阴极区域的pH，使得Mg2+完全沉淀形成氢氧化镁；(4)将所得氢氧化镁煅烧后，即得到目标产物可碳化氧化镁胶凝材料。与现有技术相比，本发明的胶凝材料所利用的主要原材料海水来源广泛，成本低廉，且所得胶凝材料具有高纯度高碳化活性，可通过吸收二氧化碳形成高强度产品，对我国建材行业碳中和意义重大。
Carbonizable magnesium oxide cementing material produced by electrolyzing seawater and preparation method of carbonizable magnesium oxide cementing material
The invention relates to a carbonizable magnesium oxide cementing material produced by electrolyzing seawater and a preparation method of the carbonizable magnesium oxide cementing material, and the specific process comprises the following steps: (1) constructing an electrolytic tank with a cathode and an anode, and arranging an ion exchange membrane between the cathode and the anode in the electrolytic tank; (2) introducing seawater into the electrolytic tank, electrifying to electrolyze, ionizing the seawater to generate ions, and enriching Mg < 2 + > in a cathode region under the filtering action of an ion exchange membrane; (3) regulating and controlling the pH value of the cathode region, so that Mg < 2 + > is completely precipitated to form magnesium hydroxide; and (4) calcining the obtained magnesium hydroxide to obtain the target product carbonizable magnesium oxide cementing material. Compared with the prior art, the main raw material seawater utilized by the cementing material is wide in source and low in cost, and the obtained cementing material has high purity and high carbonization activity, can form a high-strength product by absorbing carbon dioxide, and is of great significance in carbon neutralization in the building material industry in China.
本发明涉及一种电解海水生产的可碳化氧化镁胶凝材料及其制备方法，具体工艺过程为：(1)构建装有阴极和阳极的电解池，且在电解池中还设有置于阴极和阳极之间的离子交换膜；(2)往电解池中引入海水，通电进行电解，使得海水电离产生离子，并经离子交换膜的过滤作用，在阴极区域富集Mg2+；(3)调控阴极区域的pH，使得Mg2+完全沉淀形成氢氧化镁；(4)将所得氢氧化镁煅烧后，即得到目标产物可碳化氧化镁胶凝材料。与现有技术相比，本发明的胶凝材料所利用的主要原材料海水来源广泛，成本低廉，且所得胶凝材料具有高纯度高碳化活性，可通过吸收二氧化碳形成高强度产品，对我国建材行业碳中和意义重大。
Carbonizable magnesium oxide cementing material produced by electrolyzing seawater and preparation method of carbonizable magnesium oxide cementing material
一种电解海水生产的可碳化氧化镁胶凝材料及其制备方法
JIANG ZHENGWU (author) / GAO WENBIN (author) / LI CHEN (author)
2022-09-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C25B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS
,
Elektrolytische oder elektrophoretische Verfahren für die Herstellung von Verbindungen oder von nichtmetallischen Elementen
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