Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing calcium sulphoaluminate modified portland cement clinker and co-producing potash fertilizer from tailings
The invention discloses a method for preparing calcium sulphoaluminate modified Portland cement clinker and co-producing a potash fertilizer from tailings, and belongs to the technical field of industrial waste resource reutilization. The invention provides a method for preparing calcium sulphoaluminate modified Portland cement clinker and co-producing a potash fertilizer by using tailings, so that comprehensive utilization of the tailings containing feldspar, mica and the like and phosphogypsum is realized. Calcium oxide, tailings and ardealite are mixed in proportion and then homogenized and levigated to prepare a raw material, the raw material is roasted, cooled and levigated at a certain temperature to obtain a final product cement clinker, meanwhile potassium salt and sodium salt in the tailings react with high-temperature flue gas and then are recycled through an efficient recycling device, and the cement clinker is processed into a potassium fertilizer. Therefore, comprehensive utilization and zero emission of the molybdenum tailings and the ardealite containing mineral resources such as feldspar and mica are realized.
尾矿制备硫铝酸钙改性硅酸盐水泥熟料联产钾肥的方法，属于工业废物资源化再利用技术领域。提供利用尾矿制备硫铝酸钙改性硅酸盐水泥熟料联产钾肥的方法，实现含长石、云母等尾矿和磷石膏综合利用。通过将氧化钙、尾矿、磷石膏按照比例混合后均化、磨细、配成生料，将生料在一定温度下进行焙烧、冷却、磨细，最终产物得到水泥熟料，同时尾矿中的钾盐、钠盐与高温烟气反应后通过高效回收装置进行回收，将其加工成钾肥，从而实现了含长石、云母等矿物资源的钼尾矿、磷石膏的综合利用、零排放。
Method for preparing calcium sulphoaluminate modified portland cement clinker and co-producing potash fertilizer from tailings
The invention discloses a method for preparing calcium sulphoaluminate modified Portland cement clinker and co-producing a potash fertilizer from tailings, and belongs to the technical field of industrial waste resource reutilization. The invention provides a method for preparing calcium sulphoaluminate modified Portland cement clinker and co-producing a potash fertilizer by using tailings, so that comprehensive utilization of the tailings containing feldspar, mica and the like and phosphogypsum is realized. Calcium oxide, tailings and ardealite are mixed in proportion and then homogenized and levigated to prepare a raw material, the raw material is roasted, cooled and levigated at a certain temperature to obtain a final product cement clinker, meanwhile potassium salt and sodium salt in the tailings react with high-temperature flue gas and then are recycled through an efficient recycling device, and the cement clinker is processed into a potassium fertilizer. Therefore, comprehensive utilization and zero emission of the molybdenum tailings and the ardealite containing mineral resources such as feldspar and mica are realized.
尾矿制备硫铝酸钙改性硅酸盐水泥熟料联产钾肥的方法，属于工业废物资源化再利用技术领域。提供利用尾矿制备硫铝酸钙改性硅酸盐水泥熟料联产钾肥的方法，实现含长石、云母等尾矿和磷石膏综合利用。通过将氧化钙、尾矿、磷石膏按照比例混合后均化、磨细、配成生料，将生料在一定温度下进行焙烧、冷却、磨细，最终产物得到水泥熟料，同时尾矿中的钾盐、钠盐与高温烟气反应后通过高效回收装置进行回收，将其加工成钾肥，从而实现了含长石、云母等矿物资源的钼尾矿、磷石膏的综合利用、零排放。
Method for preparing calcium sulphoaluminate modified portland cement clinker and co-producing potash fertilizer from tailings
尾矿制备硫铝酸钙改性硅酸盐水泥熟料联产钾肥的方法
ZHU TIANMING (Autor:in) / ZHANG RUIJIE (Autor:in) / ZHANG ZHUOFENG (Autor:in) / LI SHUAI (Autor:in) / CAO SHUANG (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
Synthesis and Properties of Portland Cement Clinker Containing Calcium Sulphoaluminate
| British Library Online Contents | 1996
| Europäisches Patentamt | 2015
Chemical additive for calcium sulphoaluminate-modified portland cement
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CHEMICAL ADDITIVE FOR CALCIUM SULPHOALUMINATE-MODIFIED PORTLAND CEMENT
| Europäisches Patentamt | 2017