Q:How to improve the viscosity of kaolin

Medium stone Hengda teaches you how to improve the viscosity of the product: adding plastic clay to improve fineness, so as to improve the viscosity and thixotropy of the product.

Q:I have kaolin, which is grey. It burns red. Do you need it?

Your kaolin is grey and the burn is red. I guess your kaolin contains more three iron oxide

Q:What's the difference between kaolin and clay?

White pottery is made from kaolin. Now the international general kaolin scientific name --Kaolin, is the source of the eastern suburbs of Jingdezhen Gaoling village of Gaoling mountain.Kaolin plasticity, adhesion, certain drying strength, sintering and sintering whiteness and other special properties, make it become the main raw material of ceramic production; white, soft, high dispersion, adsorption and chemical process with excellent performance, which was widely used in papermaking industry. In addition, kaolin also is widely used in rubber, plastic, refractory material, petroleum refining industry, agriculture and national defense technology field. According to the purpose and need for processing, processing and purification, all of them can be used to produce activated clay.

Q:Application of kaolin

Kaolin has become the mineral material necessary for papermaking, ceramics, rubber, chemicals, coatings, pharmaceuticals and national defense.Ceramic industry is the earliest and larger amount of kaolin. The general dosage is 20% to 30% of the formula. The role of kaolin in the ceramic is conducive to the introduction of Al2O3, mullite, the chemical stability and sintering strength during sintering kaolin decomposition of mullite, the main frame form body strength, can prevent the deformation of the product, the firing temperature becomes wide, can make the body with whiteness some. At the same time, kaolin has a certain degree of plasticity, adhesion, suspension and binding capacity, given the enamel porcelain clay, good formability, the ceramic clay for car billet and grouting, easy forming. If used in an electric wire, insulation can be increased and dielectric loss is reduced.

Q:How to distinguish between light calcium carbonate and calcined kaolin?

The quality of pure kaolin is white, fine and soft, and it has good plasticity and fire resistance. The mineral composition is mainly composed of mineral kaolinite, halloysite, illite, illite, montmorillonite and quartz, feldspar etc..

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:What are the uses of calcined kaolin?

At present, the global total output of about 40 million tons of kaolin (the data belonging to the simple country and production together, in which no statistical ore trade volume, including more repeat calculation), which is about 23 million 500 thousand tons of refined soil. Paper making is the largest consumption Department of refined kaolin, accounting for about 60% of total consumption of kaolin. According to data provided by Temanex consulting Canada, the total output of paper and paperboard in the world was about 319 million tons in 2000, and the total amount of kaolin used in the world's paper coating was about 13 million 600 thousand tons. 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:What kind of soil can be used as a ceramic?

Clay is used mainly for firing exterior walls, floor tiles, pottery, etc.. The pottery is made of pottery clay ware, with porcelain clay fire ware called porcelain, ceramic is pottery, stoneware and porcelain. Those who use clay and clay the two kinds of clay as raw material, after ingredients, molding, drying, roasting process made of ceramic artifacts can be called.

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 are the characteristics of kaolin in ceramic materials?

The main characteristics of kaolin in chemical composition are high aluminium content and low flux content. Its producing area spreads all over the place, the south is much native kaolin, the north is much more sticky kaolin. Tyre material is porcelain clay (kaolin). Porcelain needs about 1200 degrees to burn.