Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for improving gelling activity of ardealite
The invention discloses a method for improving the gelling activity of ardealite. The method comprises the following steps: (1) ageing phosphogypsum with water to obtain aged phosphogypsum; (2) carrying out wet grinding on the aged phosphogypsum to obtain wet-ground phosphogypsum; (3) roasting the wet-ground phosphogypsum, and cooling to obtain roasted phosphogypsum; and (4) respectively carryingout two-stage dump leaching on the roasted ardealite by using a medicament 1 and a medicament 2 to obtain the ardealite with improved gelling activity. The method has the advantages that the process is simple, the cost is low, the gelling activity of the phosphogypsum can be greatly improved, a building material prepared from the treated phosphogypsum is high in strength and strong in water leaching resistance, the doping amount can be larger than 70%, and a way is provided for large-scale use and comprehensive utilization of the phosphogypsum.
本发明公开了一种提高磷石膏胶凝活性的方法。本方法包括如下步骤：(1)用水陈化磷石膏，得陈化后磷石膏；(2)将陈化后磷石膏湿磨，得湿磨后磷石膏；(3)将湿磨后磷石膏焙烧、冷却，得焙烧后磷石膏；(4)将焙烧后磷石膏分别用药剂1和药剂2进行两段堆浸，得胶凝活性提高的磷石膏。本发明具有工艺简单，成本较低，可大大提高磷石膏的胶凝活性，处理后磷石膏制成的建材强度高，抗水浸能力强，掺入量能够大于70％，为磷石膏的大量使用和综合利用提供了途径。
Method for improving gelling activity of ardealite
The invention discloses a method for improving the gelling activity of ardealite. The method comprises the following steps: (1) ageing phosphogypsum with water to obtain aged phosphogypsum; (2) carrying out wet grinding on the aged phosphogypsum to obtain wet-ground phosphogypsum; (3) roasting the wet-ground phosphogypsum, and cooling to obtain roasted phosphogypsum; and (4) respectively carryingout two-stage dump leaching on the roasted ardealite by using a medicament 1 and a medicament 2 to obtain the ardealite with improved gelling activity. The method has the advantages that the process is simple, the cost is low, the gelling activity of the phosphogypsum can be greatly improved, a building material prepared from the treated phosphogypsum is high in strength and strong in water leaching resistance, the doping amount can be larger than 70%, and a way is provided for large-scale use and comprehensive utilization of the phosphogypsum.
本发明公开了一种提高磷石膏胶凝活性的方法。本方法包括如下步骤：(1)用水陈化磷石膏，得陈化后磷石膏；(2)将陈化后磷石膏湿磨，得湿磨后磷石膏；(3)将湿磨后磷石膏焙烧、冷却，得焙烧后磷石膏；(4)将焙烧后磷石膏分别用药剂1和药剂2进行两段堆浸，得胶凝活性提高的磷石膏。本发明具有工艺简单，成本较低，可大大提高磷石膏的胶凝活性，处理后磷石膏制成的建材强度高，抗水浸能力强，掺入量能够大于70％，为磷石膏的大量使用和综合利用提供了途径。
Method for improving gelling activity of ardealite
一种提高磷石膏胶凝活性的方法
WANG JIAWEI (Autor:in) / WANG HAIFENG (Autor:in) / CHEN YANBING (Autor:in) / LONG ZHAOFENG (Autor:in) / LI SHIYU (Autor:in) / ZENG QINGGUO (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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