In addition, there are fluorite, nepheline, zirconium quartz in Guangdong, lithium-containing minerals in Xinjiang, diopside in the northeast, wollastonite and phosphate raw materials in many parts of the country, etc., and the reserves in China are very rich. Many raw materials are available for thousands of years or tens of thousands of years. This resource advantage can not only lay a foundation for continuing to promote the development of China's ceramics, but also create abundant conditions for China to develop large quantities of ceramic raw materials for export.
Ceramic raw material resources of Guangdong Province, Guangdong Province, the distribution profile <br> <br> currently there are 116 kinds of proven minerals, which have mineral reserves of 82 kinds of use, some non-metallic mineral rich reserves of resources in the domestic top five There are 10 kinds of bits, such as kaolin, ceramic soil, marble, glass sand, potassium feldspar, pyrite. The raw materials used for the production of ceramics include minerals such as kaolin, refractory clay, fluorite ore, potassium feldspar, wollastonite, and gypsum. The following is a summary of these mineral resources.
1. The kaolin mineral ceramic industry is the industry with the highest dosage of kaolin in Guangdong Province. The annual demand for kaolin is about 1.2 million tons. The raw materials for kaolin in Foshan are mainly from coastal areas. The raw materials used in the production of sanitary wares and high-grade daily-use joint ventures in Qingyuan and Zengcheng are mainly from Fogang, Zhongshan, Gaoyao and Huiyang.
Kaolin mine (including ceramic soil) is one of the dominant minerals in Guangdong Province. It is rich in resources, widely distributed, and has many types of mineral genes. Since 1980, a number of high-quality and large-scale kaolin deposits have been discovered and proven, and the proved reserves have increased substantially. The clay mines in the province are located throughout the province. The porcelain clay in Chaozhou, Huiyang and Lianjiang is the largest and the earliest. For example, the proven ore reserves in the Chaozhou Feitianyan mining area are 32 million tons. The kaolin in this mining area can be used as a raw material for the ceramic industry, in addition to being used as a low-grade coated paper coating. The original rock of the ore contains 10-15% of quartz, 5-10% of feldspar crystals, 10-15% of glass, and 65-75% of cement. The clay minerals in the ore are kaolinite, illite, halloysite and hydromica. They are scaly, eye-shaped and rod-shaped. They also contain feldspar, quartz residual debris and trace magnetite, limonite, rutile, white titanium. Stone, zircon, etc. The mine has an annual mining capacity of 500,000 tons and an ore mining plant with an annual output of 100,000 tons. It mainly supplies local and peripheral ceramics. The Taishan Yuhuan mining area has about 4.5 million tons of proven ceramic soil and kaolin. The ore is mainly composed of 20 to 35% clay, 25% feldspar, 32% quartz and 5-10% muscovite and a small amount of tourmaline, fluorite and rare earth minerals. . Clay minerals are mainly kaolinite, followed by halloysite, illite accounts for 5-15%, and montmorillonite accounts for less than 55%. Products are mainly sold to Guangzhou, Foshan, Shunde and other regions.
2, refractory clay Guangdong Province refractory products consume about 30,000 tons of refractory clay per year, used as ceramic raw material ingredients of about 300,000 tons, the production of mosaic, glazed wall and floor tile tableware and high-grade porcelain mud cake exports about 2 ~ 3 10,000 tons, the annual consumption of refractory clay in the province is about 350,000 tons, all taken from soft and hard refractory clay produced in various parts of Guangdong Province.
The main types of refractory clay deposits in Guangdong Province are sedimentary deposits. The known deposits are mainly distributed in Qujiang, Lechang, Yuezhong and the Pearl River Delta in Qingyuan, Huadu and Dongguan. The Gaoqiao-Longtang mining area in Qingyuan City consists of two deposits, which are distributed in the Quaternary sedimentary rocks of the inter-mountain basins where granite is exposed. They are all soft first- and second-class refractory clays. The ore body is layered, with a length of 1000-2000 meters and a width of 500-650 meters. It is distributed in a strip shape, with a thickness of 1 to 3 meters and a depth of 0 to 10 meters. It can be exploited in the open pit. The proven reserves of Class D and above are 5.14 million tons. The ore contains 32 to 45% Al2O3, 1.5 to 2.5% Fe2O3, 9-10% loss on ignition, 1710 to 1730 °C refractoriness, 2.78 to 3.45 plasticity, and 0.51 to 8% shrinkage.
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