Resource articles
At present, talc deposits have been found in more than 40 countries and regions around the world, mainly in Russia, China, the United States, France, Finland and other countries. The world's largest talc reserves are Russia. According to the "Soviet Talc Deposit" (Romanovich), its reserves are 39419 × 104t, the main producing areas are in Siberia, followed by the Urals. The former talc reserves account for 75%, while the latter deposits are mainly talc. According to the US Geological Survey, in 2014, four companies in the United States mine talc in six mines in four states, all of which are open-pit mining. Montana is the main producing area, followed by Texas, Vermont and Virginia.
China's talc resource reserves rank second in the world, with a wide distribution and relatively concentrated characteristics. At present, talc with different reserves and grades is found in 15 provinces, mainly concentrated in Liaoning, Shandong, Guangxi, Jiangxi and Qinghai provinces, accounting for more than 94% of the national talc reserves, including Liaoning, Shandong and Guangxi provinces (districts). Become the most important quality talc producing area.
China's distribution of talc resources
Technical articles
In terms of talc beneficiation and deep processing technology, there is still a large gap in the development level of developed countries in China and Europe and the United States. European multinational companies such as Luznak, Omega, and Yimifabi are leading the world in talc processing technology. These companies' talc processing technology and technology truly reflect the characteristics of large-scale, automated modern production, and their products have high-end products. Characteristics, specialization, and functionalization. Italian cosmetic grade talcum powder is famous all over the world; French talc has fine texture and masters high talc sterilization technology, and is also a major producer and exporter of cosmetic grade talcum powder.
China's talc ore dressing process and equipment are relatively backward, mainly relying on the introduction and learning of the shale ore processing and purification process and equipment. China's talcum powder processing mainly uses dry processing. The equipment used is mainly Raymond machine, mechanical impact pulverizer and airflow mill. Various ball mills and other mills are used less. In the 1980s, the processing equipment for talcum powder was mainly the traditional Raymond machine; from the late 1980s to the 1990s, the Japanese Hosokawa MNC502 superfine mill was introduced and the CIM51 superfine grinder developed on this basis; From the late period to the end of 2000, the use of jet mills made with German core technology has been widely used. China's talc processing technology is constantly learning and improving, and is gradually approaching the world's leading level.
Application
Talc has properties such as stability, low hardness, layered structure and lipophilic hydrophobicity. It is widely used in paper, plastic, paint, ceramics, cosmetics, medicine, rubber, agricultural products, fertilizer and other industries. The average number of talc in various fields worldwide. Paper, plastics, ceramics, paints and coatings are the four main application areas, with a total share of 85%.
World consumption of talc
From the perspective of regional differences, due to the differences in the distribution and consumption of talc and the impact of alternatives, the consumption structure of talc in different countries is not the same. More than 60% of China's talc production is consumed in the paper industry, and the rest is used in coatings, ceramics, cosmetics, roofing materials and plastics. US talc 32% for coatings, 28% talc for ceramics, 18% for paper, 6% for roofing materials, 6% for plastics, 4% for rubber, and 3% for cosmetics. The application of European talc is also very different.
Market articles
In recent years, world talc production has gradually stabilized. China is the world's largest producer of talc, followed by India, Brazil, Mexico, and the United States. In the world talc trade, the main exporters of talc are China, the United States, Canada, Italy, Australia and India. Major importing countries include more than 70 countries or regions including Japan, South Korea, Mexico, Belgium and Germany.
Statistics on talc production in the world (10,000 tons)
Source: US Geological Survey
The main producers of European talc are France, Finland, Austria, Italy, Turkey, etc. Among them, talc production in France and Finland accounts for more than half of the total production of talc in the EU. France, Finland, Austria and Italy are the major exporters of talc in Europe, and the export markets are mainly concentrated in Germany, the Netherlands, Belgium and the United Kingdom.
230. China is the largest tal palee producer, consumeræ— æ³• and export wherein it has wherein it has an lunch market碰.工会The proven reserves of talc account for 31% of the world's total, the production accounts for 46% of the world's total output, and international trade accounts for 28% of the world's trade volume. It is exported to more than 70 countries or regions in the world, including Asia, Japan and South Korea. Big.
2012-2017 China talc export statistics
Source: China Customs
As the world's largest exporter of talc, the major domestic mines and enterprises are all looking at the cake in the overseas market. The development of the company itself, the research and development of deep processing and high value-added products are mainly from the international market demand, and the export is already in China. The driving force for the development of talc industry. However, with the disappearance of the domestic talc price advantage in the international market, the form of China's talc exports has also become more severe. At the same time, the increase in demand for high-end talcum powder in the domestic market has also led to an increase in the import of talc. In the next few years, domestic demand for medium and high-grade talc will maintain a relatively fast growth rate. This indicates that the development of China's talc industry must increase research and development efforts, upgrade technology, reduce costs, and increase the value-added road. ( Powder network editing finishing / orange )
Use and performance of Graphite electrodes
use
Used in steelmaking electric arc furnace, refining furnace, as conductive electrode; Used for industrial silicon furnace, phosphorus furnace and corundum furnace, as conductive electrode.
performance
High resistance to thermal shock and high mechanical strength
grade
High Power Graphite Electrode (SHP) high power Graphite Electrode (UHP) with high power graphite electrode (HP) with high power graphite electrode (R
Precautions for use of graphite electrodes
1. According to the capacity of the electric furnace and the load of transformer, the grade and diameter of the electrode are suitable
2. When loading the electric furnace, the bulk charge shall be placed in the bottom of the furnace so as not to break the electrode. In the process of smelting, the lime should not be conductive. Large masses of objects are concentrated directly below the electrode, otherwise it will affect the electrode and even cause the electrode to break.
3. Attention should be paid to the position of the furnace cover. If the furnace cover is offset, the cover of the furnace will be blown on the lifting electrode, causing the electrode to be damaged.
4. When connecting the electrode, if the defect of joint bolt is found, the connection should be made after replacement
5. After the electrodes are connected, if there is a gap in the connection surface, it is important to find out the reason
6. The electrode should be used vertically.
7. The electrode holder shall be sandwiched between the upper and lower levels of the top electrode, and shall not be sandwiched between the warning line and the middle electrode. Otherwise, the electrode column is easily broken
8. The raw materials and production techniques of different manufacturers may vary. The physical and chemical properties of the electrode are also different, and it is recommended that the joints and electrodes produced by different manufacturers should not be used in a different way.
High Power Graphite Electrode
High Power Graphite Electrode,Die-Cast Graphite Electrodes,Bone Bit Graphite Electrod,Thermal Graphite
Fengcheng Ruixing Carbon Products Co., Ltd , http://www.lnfcrxts.com