calcined kaolin powder
1.Introduction
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(1)?The?main?composition?is?kaolinite,?Content?of?about?90%?or?so,?Particle?size?less?than?22?m.
(2)?Kaolin?easy?to?disperse?in?water?or?other?liquids,?have?satiny?feeling,?earthy?taste.?
The?Density?is?2.54-2.60?g/cm3,melting?point?about 1785°C.
(3)?Kaolin?including?calcined?and?no?calcined.?
Calcined?kaolin?clay?has?advantages?of?high?brightness,?low?impurity?and?strong?chemical?inertia,?
and?easy?to?disperse?in?water?and?oil?based?structure.?
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2.The feature of kaolin
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Associative, viscosity and contact degeneration, drying performance, sinterability, firing shrinkage, refractoriness, Suspension property and dispersion, adsorption and commutativity, chemical stability, electronic insulativity.
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3.Application
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(1)Kaolin?widely?used?in?ceramics,?glass,?paper,?rubber,?daily?chemical?industry,?
agriculture?and?so?on.
(2)Calcined?kaolin?clay?is?mainly?used?for?manufacturing?high-quality?refractory?products,?refractory?castable,?sagger,?kiln?furniture,?crucibles,?ceramic?fiber,?
precision?casting?sand,?ceramics?products,?etc.
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4.Specification
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Products?with?different?size?are?available?according?to?the?requirements?of?clients.
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Whiteness(%) | ≥93 |
Granularity(≤2μmContent)(%) | 88±2 |
325 mesh sieve(%) | ≤0.003 |
Oil Absorption | 60±5 |
Dispersion | 45±5 |
PH value | 6-8 |
SiO2,% | 52±2 |
Al2O3,% | 45±2 |
Fe2O3,% | ≤0.5 |
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