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Method for preparing silica gel by carbonating steel slag through liquid method
The invention provides a method for preparing silica gel by carbonating steel slag through a liquid method, and belongs to the field of building materials. The method comprises the following steps: firstly, crushing and grinding steel slag blocks, dispersing the ground steel slag blocks in water to form mixed slurry, continuously introducing industrial waste gas containing carbon dioxide into the mixed slurry, and carrying out carbonization reaction on the carbon dioxide contained in the industrial waste gas and the steel slag micro powder in the process; then, the carbonized steel slag micro powder is dried and then subjected to secondary grinding, the ground steel slag micro powder is mixed into water to be evenly mixed, ultrasonic dispersion treatment is conducted, and a silica gel solution is obtained. The steel slag micro powder is subjected to carbonization reaction in an aqueous solution, and the activity of calcium carbonate and silicon dioxide generated through carbonization is higher; the raw materials for preparing the silica gel are mainly industrial solid waste and industrial flue gas, waste resources generated in industrial production are optimized and recycled, waste accumulation and pollutant emission are reduced, the cementing material with excellent performance can be prepared, and the silica gel has the advantages of being low in cost, low in carbon and environmentally friendly in preparation method.
本发明提供一种液体法碳酸化钢渣制备硅胶的方法，属于建筑材料领域。该方法首先，将钢渣块破碎磨细后分散于水中形成混合浆液，于混合浆液内持续通入含二氧化碳的工业废气，在此过程中，其中工业废气中所含的二氧化碳与所述钢渣微粉发生碳化反应。然后，将碳化的钢渣微粉烘干后二次粉磨掺入水中混合均匀进行超声分散处理，得到硅胶溶液。本发明将钢渣微粉在水溶液中进行碳化反应，碳化生成的碳酸钙和二氧化硅活性更高；本发明制备硅胶所用的原料主要为工业固废和工业烟气，将工业生产所产生的废弃物资源优化，回收利用，既减少了废弃物堆积和污染物排放，又能制备出性能优良的胶凝材料，具有成本低廉，制备方法低碳环保的特点。
Method for preparing silica gel by carbonating steel slag through liquid method
The invention provides a method for preparing silica gel by carbonating steel slag through a liquid method, and belongs to the field of building materials. The method comprises the following steps: firstly, crushing and grinding steel slag blocks, dispersing the ground steel slag blocks in water to form mixed slurry, continuously introducing industrial waste gas containing carbon dioxide into the mixed slurry, and carrying out carbonization reaction on the carbon dioxide contained in the industrial waste gas and the steel slag micro powder in the process; then, the carbonized steel slag micro powder is dried and then subjected to secondary grinding, the ground steel slag micro powder is mixed into water to be evenly mixed, ultrasonic dispersion treatment is conducted, and a silica gel solution is obtained. The steel slag micro powder is subjected to carbonization reaction in an aqueous solution, and the activity of calcium carbonate and silicon dioxide generated through carbonization is higher; the raw materials for preparing the silica gel are mainly industrial solid waste and industrial flue gas, waste resources generated in industrial production are optimized and recycled, waste accumulation and pollutant emission are reduced, the cementing material with excellent performance can be prepared, and the silica gel has the advantages of being low in cost, low in carbon and environmentally friendly in preparation method.
本发明提供一种液体法碳酸化钢渣制备硅胶的方法，属于建筑材料领域。该方法首先，将钢渣块破碎磨细后分散于水中形成混合浆液，于混合浆液内持续通入含二氧化碳的工业废气，在此过程中，其中工业废气中所含的二氧化碳与所述钢渣微粉发生碳化反应。然后，将碳化的钢渣微粉烘干后二次粉磨掺入水中混合均匀进行超声分散处理，得到硅胶溶液。本发明将钢渣微粉在水溶液中进行碳化反应，碳化生成的碳酸钙和二氧化硅活性更高；本发明制备硅胶所用的原料主要为工业固废和工业烟气，将工业生产所产生的废弃物资源优化，回收利用，既减少了废弃物堆积和污染物排放，又能制备出性能优良的胶凝材料，具有成本低廉，制备方法低碳环保的特点。
Method for preparing silica gel by carbonating steel slag through liquid method
一种液体法碳酸化钢渣制备硅胶的方法
CHANG JUN (author) / ZHU XIAOYA (author) / DING XIAOLEI (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
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
/
C04B
Kalk
,
LIME
Method for preparing calcium carbonate seed crystal by carbonating steel slag through liquid method
| European Patent Office | 2024
| TIBKAT | 1989