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Q:Is kaolin soluble in water?The dispersion of kaolin in water is very unstable,At least stable 5-6 hours
Kaolin is widely used in the paper making industry. There are two main areas. One is used in papermaking (or paper making), and the other is the pigment used in the surface coating process. For general cultural paper, the amount of filling accounts for 10-20% of the weight of the paper. For coated paper and paperboard (mainly light weight coated paper, coated paper and coated paperboard), in addition to filling, pigments are required, and the proportion of kaolin used to fill the pigment is 20-35% of the weight of the paper. Kaolin used in paper making, the paper can give good coverage performance and good gloss coating performance, but also increase the paper whiteness, opacity, smoothness and printability, greatly improve the quality of the paper.
Q:Kaolin, calcium carbonate, talc, which does not affect the ink gloss?
Talc powder, English name PULVISTALCI, white or white like, fine, sand free powder, hand touch greasy. Odorless, tasteless. This product is insoluble in water, dilute ore, acid or dilute hydrogen alkali solution.
Q:What is the difference between kaolin and rare earth, which is better to use as ceramic? What effect will it have?
Kaolin is a representative of clay, commonly used in glazes, which can increase whiteness and provide suspension and adhesion
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:Where are the main differences between kaolin and kaolinite?
Kaolin pure white, because of impurities can be dyed other colors. Aggregate dull or waxy. Extremely cleavage, hardness 2.0~3.5, relative density 2.60~2.63. Dense block with a rough sense, dry with water absorption, wet state of plasticity, but water does not expand.
Q:Method for separating kaolin
The wet process will be broken through the ore pulp, in addition, sand, cyclone, stripping, centrifuge classification, magnetic separation (or bleach), concentration, filtration and drying can be obtained, such products can be used in ceramic or paper coating. If the preparation of filler grade or paper coating kaolin to increase the calcination process, namely ore crushing, pulping, cyclone, stripping, centrifugal grading, concentration, pressure filtration, steam drying, calcination, depolymerization etc..
Q:How to remove the kaolin from the stone?
Ordinary stone mainly silicate compound, hard texture and resistance to acid and alkali; and kaolin molecular formula Al2O3-2SiO2-2H2O, whether or not alumina, silicon oxide, alkaline, so only a small amount of NaOH can be removed through kaolin;
Q:Are there any differences between bentonite and kaolin?
Kaolin is a nonmetal mineral, is a kind of clay mineral mainly kaolinite clay and clay rock. Named for Jiangxi province Jingdezhen Gaoling village. The pure kaolin is white and delicate, soft soil, plasticity and fire resistance and other physical and chemical properties. Its good mineral is mainly composed of kaolinite halloysite, hydromica, illite, montmorillonite and quartz, feldspar and other minerals. Kaolin is widely used, mainly used for papermaking, ceramics and refractories, secondly used in coating, rubber filler, enamel glaze and white cement raw materials, a small amount of used plastics, paint, pigment, grinding wheel, pencil, cosmetics, soap, pesticide, medicine, textile, petroleum, chemical industry, building materials, defense and other industrial sectors.
Q:What are the requirements for kaolin as refractory material, such as how much aluminum is needed?
Kaolin as refractory material actually plays two roles, one is to improve refractoriness, and two is to improve the body plasticity of refractory material
Q:What are the differences between kaolin and kaolin? What are the chemical constituents?
(kaolin) also called Gaoling reservoir soil, white clay, clay soil, Yang (porelain clay). The main component is aluminum silicate hydrate (A12O3.2SiO2.2H2O). The color white or grayish, a hexagonal flaky crystal, the relative density is 2.54 ~ 2.60, oil content is 30% ~ 50%. kaolin pH value is generally 4 ~ 5. A weak acid.

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