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Guizhou Phosphate Group 300,000 tons of anhydrous gypsum project completed and put into operation

 Last Update: 2021-08-05
 Source: Internet
 Author: User

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Sinochem News Network News On June 29, the completion and commissioning ceremony of Guizhou Phosphate Group's 300,000 tons/year anhydrous gypsum project was held in Guizhou Xifeng Industrial Park
.

He Guangliang, Secretary of the Party Committee and Chairman of the Phosphorus Group, pointed out that Phosphorus Group strictly implements the work arrangements of the Guizhou Provincial Party Committee and the Provincial Government, unswervingly promotes "slag-based production", and is constantly committed to exploring and solving the problem of phosphogypsum utilization.
Building materials, underground filling "three major areas" and cement retarders, product nutrient adjustment and other "five paths", 2020 phosphogypsum absorption and disposal work will achieve greater progress
.

It is understood that the total investment of the project is 75 million yuan.
The anhydrous gypsum produced is made from industrial waste phosphogypsum after washing with water to remove impurities.
It is calcined at high temperature and then ground
.
After high-temperature calcination, the dihydrate gypsum is completely converted into inert type II anhydrous gypsum, with a moisture content of less than 0.

5%.

At present, the industry has ball milled anhydrous gypsum to 1200 meshes instead of calcium carbonate fillers.

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