Application of fluoro-gypsum in cement production

Application o

f fluoro-gypsum in cement production

1.

As a retarder of cement

          In cement production, gypsum of 5% or so should be added as retarder to adjust the setting time the content of CaSO4 is more than 65%, and the content of attached water is less than 4%. Domestic manufacturers - general use of natural anhydrite as waterMud retarder, but because fluorine gypsum and natural gypsum chemical composition is very close, so can be substituted with fluorine gypsumActing as cement retarder for natural gypsum. Since China is a big cement producer, this act will consume a lot of fluoritePaste waste residue can significantly reduce the production cost of cement and obtain considerable economic benefits. This is also currently treated with fluorine the main route of gypsum.

2.Using gas gypsum - fly ash cement

       By gas gypsum - fly ash cement as the main raw material preparation, due to the chlorine are the industrial by-product gypsum and fly ash, which eliminates the pollution of the environment, and created the use value, which has good economic and social benefits.