Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of cement retarder with long retarding time
The invention provides a production method of a cement retarder with long retarding time, and relates to the field of novel building materials. The production method of the cement retarder with the long retarding time comprises the following steps: by taking a byproduct phosphogypsum in a semi-hydrated wet-process phosphoric acid production process as a main material, modifying the phosphogypsum, so that various indexes of the phosphogypsum serving as the cement retarder can meet the requirements of cement manufacturers; the main material semi-hydrated gypsum is calcium sulfate generated by reaction of sulfuric acid and phosphorite in a wet-process phosphoric acid production process. According to the production method of the cement retarder with the long retarding time, the cement retarder with the long retarding time can be obtained by adding a small amount of modified substances into the byproduct phosphogypsum in the wet-process phosphoric acid production process, and meanwhile, compared with other production methods, the cement retarder has the advantages of being adjustable in retarding time, high in retarding efficiency and the like. The main production raw materials are industrial solid wastes.
本发明提供一种长缓凝时间水泥缓凝剂的生产方法，涉及新型建筑材料领域。该长缓凝时间水泥缓凝剂的生产方法，包括采用半水法湿法磷酸生产过程副产磷石膏为主要材料，通过对磷石膏进行改性，让磷石膏用作水泥缓凝剂的各项指标均能满足水泥生产厂家的要求，所述主要材料半水石膏为湿法磷酸生产过程硫酸与磷矿反应生成的硫酸钙。该长缓凝时间水泥缓凝剂的生产方法，所涉及的生产方法，是利用湿法磷酸生产过程副产磷石膏添加少量的改性物质便可得到一种具有较长缓凝时间的水泥缓凝剂，同时本发明专利与其他生产方法相比，具有缓凝时间可调节，主要生产原料为工业固体废物。
Production method of cement retarder with long retarding time
The invention provides a production method of a cement retarder with long retarding time, and relates to the field of novel building materials. The production method of the cement retarder with the long retarding time comprises the following steps: by taking a byproduct phosphogypsum in a semi-hydrated wet-process phosphoric acid production process as a main material, modifying the phosphogypsum, so that various indexes of the phosphogypsum serving as the cement retarder can meet the requirements of cement manufacturers; the main material semi-hydrated gypsum is calcium sulfate generated by reaction of sulfuric acid and phosphorite in a wet-process phosphoric acid production process. According to the production method of the cement retarder with the long retarding time, the cement retarder with the long retarding time can be obtained by adding a small amount of modified substances into the byproduct phosphogypsum in the wet-process phosphoric acid production process, and meanwhile, compared with other production methods, the cement retarder has the advantages of being adjustable in retarding time, high in retarding efficiency and the like. The main production raw materials are industrial solid wastes.
本发明提供一种长缓凝时间水泥缓凝剂的生产方法，涉及新型建筑材料领域。该长缓凝时间水泥缓凝剂的生产方法，包括采用半水法湿法磷酸生产过程副产磷石膏为主要材料，通过对磷石膏进行改性，让磷石膏用作水泥缓凝剂的各项指标均能满足水泥生产厂家的要求，所述主要材料半水石膏为湿法磷酸生产过程硫酸与磷矿反应生成的硫酸钙。该长缓凝时间水泥缓凝剂的生产方法，所涉及的生产方法，是利用湿法磷酸生产过程副产磷石膏添加少量的改性物质便可得到一种具有较长缓凝时间的水泥缓凝剂，同时本发明专利与其他生产方法相比，具有缓凝时间可调节，主要生产原料为工业固体废物。
Production method of cement retarder with long retarding time
一种长缓凝时间水泥缓凝剂的生产方法
YANG BIN (Autor:in) / DING YONGMING (Autor:in) / LIAO BO (Autor:in) / LIU LI (Autor:in) / LIU ZHILI (Autor:in)
28.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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