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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.
Physical?properties?of?heavy?calcium?carbonate?
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(lmplementation?standards?HG/T3249-2001):
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Composition | CaCO3 | Density(g/cm3) | Hardness | Whiteness | PH | Moisture?content | Melt?points |
Content% | 70-98 | 2.7-4.5 | 2.5-3.5 | 84-97 | 8-9 | 825℃-896.6℃ |
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Main?Use:
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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?of?calcium?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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