Qingtian County, Zhejiang Province, molybdenum ore reserves in the first place China's Qingtian Network May 16, reporters from Qingtian County Land Bureau was informed that, after two years of the county's mineral resources use survey results released. The results showed that Qingtian County amounted to 15,662.92 tons of molybdenum plating metal retention, accounting for 80% of the province's reserves, pyrophyllite ore 15,385,400 tons, accounting for 50% of the province's reserves, reserves rank first in Zhejiang Province.
It is reported that after Qingtian County, Zhejiang Institute of Geological Survey, Geological Brigade province eleven nearly two years of field data surveys and data processing within the industry, fully completed Shiping Chuan Molybdenum Mine, Yamaguchi pyrophyllite mining and other two important minerals mining 5 survey of the use of mineral resources of the county to identify the amount of 6,641,800 tons of ore to maintain Molybdenum tube metal of 15,662.92 tons; lead-zinc ore volume 431,700 tons, the amount of 16,283 tons of metal; fluorite ore 267,300 tons; pyrophyllite ore 1538.54 tons of mineral resources and fruitful. . Among them, pyrophyllite is good Qingtian stone material industry of choice, around the molybdenum metal is an important raw material industries. The county's two kinds of ore were estimated mine life of 30 years and 50 years, the economic output of nearly 50 billion yuan. County Land Bureau relevant responsible person said, the survey for Qingtian County reserves of mineral resources database updates, and further rational development and utilization of mineral resources provide detailed data for Qingtian County effectively improve the scientific management level land and resources, strengthen the capacity of land resources and support economic development provided strong support
Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
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