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:Process characteristics of kaolin

Whiteness is one of the main parameters of kaolin's technological properties. Kaolin with high purity is white. Kaolin whiteness, natural whiteness, and whiteness after calcination. For ceramic raw materials, the whiteness of calcined is more important, the higher the whiteness of calcined, the better the quality. The ceramic process stipulates that the drying temperature is 105 degrees centigrade and the classification standard is the natural whiteness. The calcined 1300 DEG C is the grading standard for the whiteness of the calcined products. Whiteness can be measured by a whiteness meter. Whiteness meter is a measure of a 3800 - 7000 (i.e., 1 =0.1 nm) wavelength of light reflectivity of the device. In the whiteness meter, the reflectivity of the sample to be measured is compared with the reflectance of the standard sample (such as BaSO4, MgO, etc.), i.e., the whiteness value (such as whiteness 90, which represents 90% of the standard sample reflectivity).

Q:Who knows kaolin? Please, great God!

Kaolinite is a dense or loose mass, usually white. If it contains impurities, it is beige. Gaoling stone weathering or deposition into kaolin and kaolin is made of ceramic raw materials. In addition, kaolin can also be used as chemical filler, refractory material, building material, and so on. It is widely used. There is a kaolin village in Jiangxi, Jingdezhen, China, which is rich in kaolin. Hence its name. At the end of the Ming Dynasty, the mine was mined in kaolin village of Jingdezhen. It was introduced into the world mineralogy by German geologist Richthofen according to the transliteration of kaolin into "Kaolin".

Q:What is kaolin?

1. brightness and brightnessWhiteness is one of the main parameters of kaolin's technological properties. Kaolin with high purity is white. For ceramic raw materials, the whiteness is more important after calcination. The higher the whiteness of calcination, the better the quality

Q:How to identify kaolin?

Washed out kaolin can produce many unexpected consequences when used in the deployment of other raw materials.

Q:What's the requirement of high-grade kaolin?

Brightness is a process characteristic similar to that of self, which is equivalent to the degree of self - illumination under the 4570A wavelength.The color of kaolin is mainly related to its metal oxides or organic matter. Containing Fe2O2 was rose red, brown and yellow; Fe2+ is light blue, light green, light brown with MnO2; organic matter tends to yellow, gray, green, black and other colors. The presence of these impurities, reduced the natural whiteness of kaolin, in which iron and titanium minerals will also affect the degree of calcination, porcelain stains or scars appear.

Q:What is the difference between chemical pure and pure analysis of kaolin?

The analysis of pure (AR) is the purity specifications of chemical reagents, belong to grade two, analysis of pure tags for Jin Guanghong, for general test (prepared in the quantitative analysis of common solution); for the specific drug purity, different requirements are not the same.

Q:What kind of soil can be used as a ceramic?

Clay - clay, refers to contain iron with brown, gray, red purple color, with good plasticity of clay. The mineral composition in the clay, montmorillonite, kaolin.

Q:Know the proportion of kaolin slurry, how to calculate the content of pure kaolin?

Kaolin does not have a fixed specific gravity value, depending on the number of elements contained. The general proportion of kaolinite is 2.6 - 2.8, while kaolin is formed by the weathering of kaolinite. Specific contain three oxidation two aluminium how many, should send laboratory to undertake analysis.

Q:What is the porcelain glaze porcelain

Porcelain clay is mainly used for the production of porcelain, porcelain clay or kaolin, is the main raw material for ceramics.