CALCINED KAOLIN FOR Color (GBCK-95/96) National Standard

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
12000 m.t./month

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Product Description:

1. Benefits and Application

The GB-CK series of Kaolin based pigments are produced through delamination, 

calcination and classification. The well-controlled processes ensure the GB series have no coarse particles and maintains an absolute minimum of 325 mesh residue, so the end user can achieve a high Hegman grind. The GB series pigments also have high brightness, strong hiding powder and superior dispersibility, and it is widely applied in latex paint, powder coating and electrophoresis coating. 
Its main benefits are:

 It’s the best extender of titanium dioxide with excellent opacity that can
   improve efficiency and cut costs by partly replacing titanium dioxide;
It can easily disperse in water based systems; 
It offers superfine particle and with excellent anti-settling property; It is inert to most acids and
   alkaline at ambient temperature and offers good anticorrosive capabilities.

2. Typical Physical Properties

Item

GB-CK90

GB-CK92

Brightness(T457)

90.5%min

92%min

Particle Size (0-2micron)%

50+/-2

60+/-5

Particle Size (0-10micron)%

94%

97%

Refractivity

1.62

1.62

Screen residue (325 mesh %)

0.01max

0.01max

Oil Absorbency (g/100g)

35+/-5

50+/-5

Dispersion (micron)

55max

50max

pH

5.5-7.0

5.5-7.0

Bulk Density (kg/m3)

600

500

Specific Gravity (kg/m3)

2600

2600

Moisture (%)

0.5max

0.5max

3. Typical Chemical Properties

SiO2(%)

Al2O3(%)

Fe2O3(%)

TiO2(%)

CaO(%)

MgO(%)

CuO(%)

K2O(%)

Na2O(%)

MnO(%)

52+/-2

45+/-2

0.50max

1.5max

0.4max

0.2max

0.004max

0.05max

0.15max

0.004max

4.Application

 


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Q:How can clay sculptures not be cracked and preserved for a long time?
1. Keep moisture - covered with plastic sheeting;2, reduce the amount of water used during the mud and more or more times, or use mechanical agitation, and then after a long time of boring mud, or add water reducing agent to reduce moisture;3, add other modified substances - add glue, calcined fine powder and so on;4, the process should pay attention to not too much smearing the surface.
Q:What is the difference between porcelain stone and kaolinite?
Belong to the kaolinite clay mineral, its chemical composition is Al4[Si4O10] (OH) 8, layered silicate mineral crystal belongs to triclinic. Three were dispersed cryptocrystalline, powder, loose bulk collection of white or light gray, light green, yellow, red and other colors, white streak, earthy luster, Mohs hardness of 2-2.5, the proportion of 2.6-2.63. absorbent, and water has plasticity, sticky tongue, dry clods with rough feeling.
Q:How to distinguish the good or bad of kaolin?
Kaolin chemical composition analysis laboratory test kaolin composition is very complex, kaolin chemical composition contains a large number of AL2O3, SiO2 and a small amount of Fe2O3, TiO2, and trace amounts of K2O, Na2O, CaO and MgO.
Q:There is a kind of kaolin powder used for making cables. It does not sink in water. It does not damp with a stick. It wants to know what is added in it
The modification of kaolin for cable has special requirement, and the general modification method is not up to standard.
Q:What's the difference between kaolin and white mud?
The mining methods of kaolin ore include open pit mining and underground mining. Weathered residual kaolin ore is widely mined, such as sandy kaolin in Maoming. Other hydrothermal altered and sedimentary deposits are mined by open pit and underground by deep mining. The open-pit mines, but most are small and medium-sized mines, large Fujian Longyan kaolin company, Guangdong company, Guangdong Maoming southern Maoming kaolin kaolin company. Suzhou Chinese kaolin company owned mining, Yangdong mine Yangxi used in open-pit mining. Large scale underground mining are: Jiangsu Suzhou Yangxi shaft, shaft, the white Shanling Guanshan Yangdong mine and Wuxian Qingshan white clay ore etc..
Q:Can pure kaolin or montmorillonite burn pottery? If not, what do you need to add?
Pure can pottery, such as white is pure kaoline. In addition, according to the needs of different types of ceramic added into material, such as sand pottery in the need to add fine sand, in order to increase the thermal shock resistance performance of pottery. Then such as pottery pottery pottery, these different colors are made by feeding and then control the roasting conditions.
Q:The difference between kaolin and calcium carbonate
Small flake, tubular, laminated and kaolinite mineral kaolin is mainly composed of a cluster of less than 2 microns (kaolinite, dickite, nacrite, halloysite etc.), chemical formula and ideal for AL2O3-2SiO2-2H2O, the main mineral is kaolinite kaolinite and water, in addition to kaolinite cluster mineral, montmorillonite, and Ye Lashi, illite, quartz and feldspar and other associated minerals. The chemical composition of kaolin contains a large amount of AL2O3, SiO2 and a small amount of Fe2O3, TiO2, and trace amounts of K2O, Na2O, CaO and MgO.
Q:What is the difference between diatom mud and kaolin?
Diatom mud is the diatom after the death of the diatom plants in the sea. The diatom formed by the precipitation of the corpse for thousands of years. It forms diatomite after the diatom ore is purified, and the diatom mud can be formed on the upper wall after processing according to the formula proportion.
Q:What are the requirements for kaolin as refractory material, such as how much aluminum is needed?
The higher the amount of aluminum, of course, but the refractories do not use only kaolin to increase the aluminum content, all use bauxite, coke, precious stones and other aluminum containing higher raw materials to do the skeleton
Q:What are the surface modification technologies of calcined kaolin and the matters needing attention?
The surface modification of calcined kaolin should be done by heating the calcined kaolin in order to react with silane coupling agent and requiring kaolin to maintain a certain temperature in the dynamic state. Only in this way can the excess water in the reaction process and reaction be removed so as to form a stable and firm covalent bond with kaolin. Therefore, it is necessary to determine the surface modification process according to the mechanism of surface modification.

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