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Refined Kaolin Kaolin accounted for half of a huge market Jiangshan
- Published: 3 Aug 2009 06:45:27
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Kaolin by less than 2 micron flake, tube, sheet overlapping clusters, such as kaolinite mineral composition, quality of pure white kaolin with a high quality soft suspension easily dispersed in water, has a good plasticity and high adhesion, excellent electrical insulation properties, good acid-insoluble, low cation exchange capacity, higher refractoriness, such as physical and chemical properties, it is widely used in papermaking, ceramics, rubber, plastics, refractories, chemical , medicine, textiles, petroleum, building materials and national defense and other departments. By industrial uses, can be divided into the paper with kaolin kaolin, kaolin with enamel, rubber and ceramics with kaolin, such as use of kaolin, which accounted for the paper industry with kaolin production of refined kaolin half.
Kaolin production in the world in 2005 about 44.5 million tons, of which production of refined kaolin is about 25 million tons, accounting for kaolin production in the world 60% of the original soil without processing accounted for 40% of the total output. In the refined kaolin, paper-grade kaolin production is about 11 million tons, accounting for a quarter of the world's kaolin production. Currently in the world paper industry, printing paper and writing paper grade kaolin is the main consumer areas, the use of fillers and coating ratio of 60% and 40%. Kaolin use paper weight of about 10.15 percent, accounting for 10.45% TSP, or about 4.48 percent calcium light. In the printing and writing paper, the paper on the use of kaolin and calcium carbonate accounted for 59%, 41% other paper the global paper industry in 2003 used 30 million tons of mineral raw materials, of which 27 million tons for the printing and writing paper.
In the field of printing and writing paper, 38% for coated paper, 31% for non-coated paper, 21% for pulp and paper coating mechanism, limestone accounted for printing and writing paper usage by 38.7 percent mineral, kaolin 37.6 %, precipitated calcium carbonate 16.6%, other 7.1%. Kaolin with 45% of the amount of mineral filler to become the first, followed by 26% precipitated calcium carbonate, heavy calcium carbonate 18%. Heavy calcium carbonate is the most important mineral coating, accounting for 53%, followed by kaolin at 45%, the rest is precipitated calcium carbonate.
1999-2005, the domestic paper and paper products industry sales 22 percent compound growth rate in 2006, the growth rate of 1-8 month sales up 27%. Internal mechanism for paper and paperboard in 2005 production reached 62.05 million tons, representing an increase of 15%. 2005 data, the domestic paper and paperboard production has accounted for 16% of global output about. According to this proportion is estimated that domestic paper demand in mineral raw materials used to reach 4.8 million tons; if consistent with the proportion of the global use of kaolin, the domestic paper industry fillers and coatings in 2005 with the potential demand for refined kaolin reached 1.8 million tons .
Kaolinite production technology is the only high-speed paper machine manufacturers use refined kaolin, kaolin refining output in 2005 about 70,000 tons. Although part of the domestic production of low-level small and medium-sized paper with kaolin products, but only in the scale of production of about 10,000 tons, kaolinite IT production scale, technological level and production equipment are in the lead in the domestic counterparts. However, due to the small and medium-sized non-pre-planning frenzy digging, Maoming Kaolin mining areas close to the late. Kaolin kaolinite Technologies recoverable ore reserves to maintain length of only about 12 years, has severely limited the company's production capacity expansion plans in recent years, the actual output in recent years kaolin hovers at around 90,000 tons.
Kaolin domestic refining market, and growth potential, and at the same time the domestic market of the products of competitors is limited, high and stable level of profitability. A huge market space as a result of the short term through new production capacity of refined kaolin, kaolinite technology can be highly profitable for a simple copy. Second thought, once the mining right to mine kaolin by 200 yuan / ton to about the price of the sale of ceramic kaolin ore and other industries can also get higher in the short term the level of return.






