A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Phosphogypsum and modification method thereof, high-strength water-resistant gypsum plaster board and preparation method thereof
The embodiment of the invention provides ardealite and a modification method thereof, and a high-strength water-resistant gypsum plaster board and a preparation method thereof. The phosphogypsum modification method comprises the following steps: drying phosphogypsum to be modified to constant weight; mixing aluminum sulfate with phosphogypsum dried to constant weight, and performing microwave calcination, grinding and aging to obtain the modified anhydrous phosphogypsum. The phosphogypsum modification method can effectively reduce the content of soluble impurities in phosphogypsum, and the process is simple.
本申请实施例提供一种磷石膏及其改性方法、高强耐水纸面石膏板及其制备方法。所述磷石膏改性方法包括：将待改性的磷石膏烘干至恒重；将硫酸铝与烘干至恒重的磷石膏混合，微波煅烧，粉磨，陈化，得到改性无水磷石膏。该磷石膏改性方法可以有效降低磷石膏中的可溶性杂质含量，而且工艺简单。
Phosphogypsum and modification method thereof, high-strength water-resistant gypsum plaster board and preparation method thereof
The embodiment of the invention provides ardealite and a modification method thereof, and a high-strength water-resistant gypsum plaster board and a preparation method thereof. The phosphogypsum modification method comprises the following steps: drying phosphogypsum to be modified to constant weight; mixing aluminum sulfate with phosphogypsum dried to constant weight, and performing microwave calcination, grinding and aging to obtain the modified anhydrous phosphogypsum. The phosphogypsum modification method can effectively reduce the content of soluble impurities in phosphogypsum, and the process is simple.
本申请实施例提供一种磷石膏及其改性方法、高强耐水纸面石膏板及其制备方法。所述磷石膏改性方法包括：将待改性的磷石膏烘干至恒重；将硫酸铝与烘干至恒重的磷石膏混合，微波煅烧，粉磨，陈化，得到改性无水磷石膏。该磷石膏改性方法可以有效降低磷石膏中的可溶性杂质含量，而且工艺简单。
Phosphogypsum and modification method thereof, high-strength water-resistant gypsum plaster board and preparation method thereof
磷石膏及其改性方法、高强耐水纸面石膏板及其制备方法
YANG ZHENGBO (author) / CHEN HONGXIA (author) / LIU WENJUN (author) / JIAN SHOUWEI (author) / YANG XIN (author)
2023-09-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Water-resistant high-strength gypsum plaster board and preparation method thereof
| European Patent Office | 2022
Phosphogypsum gypsum plaster board with high water resistance and manufacturing method thereof
| European Patent Office | 2024
High-strength impact-resistant gypsum plaster board and preparation method thereof
| European Patent Office | 2024
High-strength gypsum plaster board and preparation method thereof
| European Patent Office | 2020
Lightweight high-strength gypsum plaster board and preparation method thereof
| European Patent Office | 2021