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heavy calcium size (ca 45%-90): 20mesh,40mesh,80mesh,100mesh,200mesh,325mesh
400mesh,600mesh,800mesh
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Calcium carbonate is?an inorganic?compound, commonly?known as?limestone,?Greystone, stone powder,?marble,?calcite, alkaline,?soluble in acid,?Basically insoluble?in water.
Heavy calcium carbonate, simply called heavy calcium ,is a white powder made of fine calcite.lts chief composition is CaCO3. It displays such properties as whiteness, purity, soft colour and stability in chemical composition. Therefore it is a very good filling widely used in industry.
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? Physical properties of heavy calcium carbonate
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Composition | CaCO3 | Density(g/cm3) | Hardness | Whiteness | PH | Moisture content |
Content% | 70-98 | 2.7-4.5 | 2.5-3.5 | 84-97 | 8-9 | < 0.5 |
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??Main Use :
Heavy calcium is widely used?in daily chemical industry as fillings in artificial bricks, rubber, plastic, papermaking, coating, paint, printing ink, electric cable, food, medicine, spinning and weaving ,fodder and tooth paste, etc. lt can help to increase the volume of the products and reduce the costs.
1.?In rubber , it can?reduce?the amount of?expensive natural?rubber,?increase its volume ,reduce costs,?After?adding?calcium?carbonate then can be obtain?higher strength tensile?,tear strength?and abrasion resistance than the pure Rubber vulcanizate
2.In chemical manufacturing materials,it is heat-proof, chemical corrosion-proof,cold-proof,noise, shockproof and easy to process.Therefore it can be used to make doors, dry motar ,ceilings, wallboard,waterpipe,handrail of stairs,floor board and electric wire,etc.
3.In painting, coating ,it is as the filling and as the framework,Latex?paint?more than 30% amount are used in thick paint ,26%-60% amount are used in water-based pain ,?It?is?not easy to?make the?coating?deposition,?easily dispersed?,good gloss?
4.In plastic, it can increase the volume of plastics,reduce the costs,improve the size, stability, hardness and tencity of plastic products.It can also improve the processing properties and heat resistance and astigmatism.
5..As paperpulp material,it can fully make use of its high whiteness, affinity to water and shock intensity.and it is low cost widely using .
6.?Using in coal-fired?power plant?desulfurization
Limestone?flue gas desulfurization is calcium carbonate?and?sulfur dioxide?synthesis ofcalcium sulfite during Coal-fired?process?and then?Combined with?oxygen air?oxidation?gypsum(calcium sulfide),Which?can?be reduced 90%
Sulful dioxide?produced by?coal-fired plants,?Produce?gypsum?for?cement and Gypsum plant
7.?In?Feed?,?pharmaceutical industry, making?calcium?additives,?replace the original?shell powder?to reduce costs.
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