HIGH REACTIVITY METAKAOLIN FOR CEMENT INDUSTRY(GB-HRM98)

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HIGH REACTIVITY METAKAOLIN FOR CEMENT INDUSTRY(GB-HRM98)

4.Application

HIGH REACTIVITY METAKAOLIN FOR CEMENT INDUSTRY(GB-HRM98)

Q:I have kaolin, which is grey. It burns red. Do you need it?: And mainly hematite. I suggest you increase the whiteness after extracting hematite. After sintering is red kaolin, as ceramic soil, not many people, and the price can not go up, unless someone for the special use of the soil, as the base material is difficult to sell.

Q:Where are the main differences between kaolin and kaolinite?: There are three types of kaolinite subgroup, including kaolinite, crust stone and Pearl stone. Their theoretical formula is Al[Si4O10] (OH) 8, without water between layers.

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: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:The difference in structure between graphite, talc and kaolin: Kaolin is a nonmetallic mineral, a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Because of the white and delicate, also known as "white cloud soil.".

Q:Kaolin, calcium carbonate, talc, which does not affect the ink gloss?: Kaolin, calcium carbonate and talc powder as a kind of inorganic filler will affect the ink gloss, the most important influence is reflected in the kaolin, calcium carbonate and talc powder in water content, too much water, the influence of ink concentration, which will affect the use of ink printing effect, so the detection of moisture content it is necessary to.

Q:Should kaolin be used in polyester production?: Polyester fiber is also called polyester fiber (PET), the basic component is polyethylene terephthalate two ester, molecular formula [-OC-Ph-COOCH2CH2O-]n, so simply do not use kaolin when producing polyester.

Q:Can kaolin be used for cosmetics?: Kaolin is mainly composed of two oxygen silicon and three aluminum oxide two. Do high-end cosmetics, kaolin requirements of pure white, fine granularity (1250 mesh).

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:Method for separating kaolin: For the separation of quartz, feldspar, kaolin, iron ore, mica titanium minerals and other non clay minerals and organic matter production, which can meet the demand of various industries kaolin products, in addition to the use of gravity separation, flotation and magnetic separation of kaolin was purifying, sometimes using chemical bleaching and stripping, ultra-fine calcined surface modification processing method for processing of kaolin. The processing of kaolin is divided into two processes, dry process and wet process. </p><p> (1) dry process, usually the ore will be broken through the crusher to about 25mm, to the cage crusher, the particle size reduced to about 6mm. The crushed ore is further ground by a blown Raymond Mill equipped with a centrifuge and cyclone dust collector. The process can remove most of the sand and gravel, and is suitable for processing ores with high whiteness, low sand content and suitable particle size distribution. Dry processing is of low cost and is usually used as a low filler for rubber, plastics, and paper making industries.

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