A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing phosphorus building gypsum powder from phosphogypsum and phosphorus building gypsum powder
The invention belongs to the technical field of reutilization of ardealite, and provides a method for preparing phosphorus building gypsum powder from ardealite and the phosphorus building gypsum powder. According to the method disclosed by the invention, the phosphogypsum is neutralized by utilizing the limestone, so that residual acidic substances (such as H3PO4 and H2PO4 <->) in the phosphogypsum can be preliminarily removed. Meanwhile, a medium for wet grinding comprises water, and the water can be used for dissolving soluble impurities in the phosphogypsum, such as soluble phosphorus (H3PO4 and H2PO4 <->) and soluble fluorine (NaF); meanwhile, organic matters in the ardealite can be brought out, and the ardealite floats on the water surface, so that the removal rate of impurities in the ardealite is increased; and moreover, the wet ball milling can avoid flying dust and excessive machine loss, so that the energy consumption is saved. According to the method, soluble phosphorus, soluble fluorine and organic matters in the phosphogypsum can be removed through purification. The phosphorus building gypsum powder obtained by the method provided by the invention has the advantages of few impurities and high quality.
本发明属于磷石膏的再利用技术领域，提供了一种利用磷石膏制备磷建筑石膏粉的方法及磷建筑石膏粉。本发明利用石灰石对磷石膏进行中和，能够将磷石膏中的残留酸性物质(比如H3PO4、H2PO4‑)初步去除。同时，湿法研磨的介质包括水，水能够溶解磷石膏中的可溶性杂质，比如可溶性磷(H3PO4、H2PO4‑)和可溶氟(NaF)；同时，还可将磷石膏中的有机物带出，并浮于水面，提高磷石膏中杂质的去除率；而且，湿法球磨能够避免飞尘和过大的机器损耗，节约了能耗。本发明利用净化能够去除磷石膏中的可溶性磷、可溶氟和有机物。利用本发明的方法得到的磷建筑石膏粉的杂质少，品质高。
Method for preparing phosphorus building gypsum powder from phosphogypsum and phosphorus building gypsum powder
The invention belongs to the technical field of reutilization of ardealite, and provides a method for preparing phosphorus building gypsum powder from ardealite and the phosphorus building gypsum powder. According to the method disclosed by the invention, the phosphogypsum is neutralized by utilizing the limestone, so that residual acidic substances (such as H3PO4 and H2PO4 <->) in the phosphogypsum can be preliminarily removed. Meanwhile, a medium for wet grinding comprises water, and the water can be used for dissolving soluble impurities in the phosphogypsum, such as soluble phosphorus (H3PO4 and H2PO4 <->) and soluble fluorine (NaF); meanwhile, organic matters in the ardealite can be brought out, and the ardealite floats on the water surface, so that the removal rate of impurities in the ardealite is increased; and moreover, the wet ball milling can avoid flying dust and excessive machine loss, so that the energy consumption is saved. According to the method, soluble phosphorus, soluble fluorine and organic matters in the phosphogypsum can be removed through purification. The phosphorus building gypsum powder obtained by the method provided by the invention has the advantages of few impurities and high quality.
本发明属于磷石膏的再利用技术领域，提供了一种利用磷石膏制备磷建筑石膏粉的方法及磷建筑石膏粉。本发明利用石灰石对磷石膏进行中和，能够将磷石膏中的残留酸性物质(比如H3PO4、H2PO4‑)初步去除。同时，湿法研磨的介质包括水，水能够溶解磷石膏中的可溶性杂质，比如可溶性磷(H3PO4、H2PO4‑)和可溶氟(NaF)；同时，还可将磷石膏中的有机物带出，并浮于水面，提高磷石膏中杂质的去除率；而且，湿法球磨能够避免飞尘和过大的机器损耗，节约了能耗。本发明利用净化能够去除磷石膏中的可溶性磷、可溶氟和有机物。利用本发明的方法得到的磷建筑石膏粉的杂质少，品质高。
Method for preparing phosphorus building gypsum powder from phosphogypsum and phosphorus building gypsum powder
一种利用磷石膏制备磷建筑石膏粉的方法及磷建筑石膏粉
LI XIAOQIN (author) / HU LIANGCAN (author)
2024-06-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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