Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycling method of dihydrate gypsum from waste gypsum boards
Gypsum derived from waste gypsum boards is calcined and converted into gypsum granules including hemihydrate and/or anhydrous type III gypsum. The calcined gypsum granules are dropped into water to prepare a gypsum slurry. Then, dihydrate gypsum particles are crystalized in the slurry. The temperature of the gypsum granules just before being dropped into the water is 90° C. or higher.
Recycling method of dihydrate gypsum from waste gypsum boards
Gypsum derived from waste gypsum boards is calcined and converted into gypsum granules including hemihydrate and/or anhydrous type III gypsum. The calcined gypsum granules are dropped into water to prepare a gypsum slurry. Then, dihydrate gypsum particles are crystalized in the slurry. The temperature of the gypsum granules just before being dropped into the water is 90° C. or higher.
Recycling method of dihydrate gypsum from waste gypsum boards
HIRANAKA SHINGO (Autor:in) / MATSUO KENTARO (Autor:in) / KATAOKA MAKOTO (Autor:in)
16.03.2021
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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