Time:2023.02.06Browse:1
The large and medium -sized graphite mines in the world are mainly distributed in China, India, Brazil, Czech Republic, Canada, Mexico and other countries. According to the US Geological Survey Bureau, the world's graphite reserves are 71 million tons, and the graphite reserves of China are 55 million tons, accounting for 77%of the world. Brazilian graphite ore is distributed in Minas Gerais, CEARA and Bahia, and the best graphite is distributed in Padrajal, Minasglas ( Pedra Azul), which proves the ore reserves of 250 million tons. Indian graphite ore is mainly distributed in Oresa and Rajastan. According to the Indian Mining Annual Report, Indian graphite reserves are 10.75 million tons and resources are 158.025 million tons. Canadian graphite mines are distributed in Ontario, British Columbia and Quebec Province. Bissett Creek graphite mines are the largest graphite mines in North America. Sri Lanka's vein -like graphite mine is world -famous. It is the only highly graphitized pulse graphite mine in the world, which is located in the west and southwestern parts of Sri Lanka Island. [3]
There are two types of graphite minerals: crystal graphite and hidden graphite. According to the statistics of the Ministry of Land and Resources, as of the end of 2009, the reserves of Chinese crystal graphite minerals were 30.41 million tons, the basic reserves were 54.32 million tons, and the resources were 13.054 million tons. In the past 20 years, my country's crystal graphite reserves have increased, but the high -quality graphite reserves of large scales have been reduced to less than 5 million tons. Crystal graphite is distributed in 20 provinces (autonomous regions) including Heilongjiang, Shandong and Inner Mongolia