Anhydrite
Natural anhydrous anhydrite ore belongs to natural anhydrous calcium sulfate (CaSO4), with high grade and stable quality.
Typical value of chemical composition (%)
SiO2: 1.72
Fe2O3: 0.16
AL2O3: 0.35
TiO2: 0.016
MgO: 1.80
SO3: 50.96
CaO: 39.40
LOSS: 5.41
H2O- 0.04
H2O+ 0.42
Main technical performance
Anhydrous anhydrite powder is off-white powder,
200 mesh fineness,
Specific gravity 2.92,
The whiteness is about 65,
The solubility is 2.6% at 25°C,
When the standard consistency is not mixed with activator, the initial setting is about 15h, and the final setting is about 77h. The use of appropriate activator can greatly advance the setting time.
Main application areas
1. Building materials, used to produce anhydrous anhydrite cement and cementitious materials: adding an appropriate amount of activator can produce anhydrous gypsum cement or stucco gypsum cementitious materials, suitable for soft soil foundation reinforcement, wall painting, mechanical modeling, Tunnel support and production of fiber pressure plates, etc.
The main raw material of concrete expansion agent, anti-cracking agent, early-strength waterproofing agent, and gypsum self-leveling mortar. Cast-in-place piles and deep mixing piles are used as large expansion materials to increase frictional resistance. Used as a compound mineralizer in the production of special cement.
Used as a co-solvent and purifying agent in the glass production process. Used as a filler in the industrial production of plastics, rubber, coatings, asphalt, and linoleum.
2. The chemical industry can be directly used to produce sulfuric acid, with the production of light cement. Production of ammonium sulfate, with the production of light calcium carbonate.
3. Agriculture improves the soil, adjusts the pH, and is suitable for the improvement of saline soil, red soil and other soils. It is used as calcium and sulfur compound mineral fertilizer in the cultivation of edible fungi to adjust the pH of the medium. Used as a compound mineral feed additive in poultry and livestock feed.
Fineness of 200 mesh, 400 mesh, 1250 mesh and other specifications can be supplied too
The main uses of anhydrous gypsum powder are:
1. 1250 mesh ultra-fine gypsum powder can be used as a filler for the production of rubber, PVC special materials and coatings.
2. It can be used to improve the soil and adjust the pH; as an additive for edible fungus cultivation and feeding, it can supplement calcium sulphur nutrients with significant effects.
3. As a cement retarder and compound mineralizer, it is especially suitable for the production of concrete expansion agent, low alkalinity special expansion cement, stucco gypsum cementing materials and their products.
Packing
1000KG per bag
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