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.
2013年8月12日星期一
The project is the use of foreign and domestic mineral resources
molybdenum-copper project is a key project of post-earthquake reconstruction in Sichuan characteristics of dominant industries of major projects, Sichuan, "Twelfth Five-Year Plan" key project, a total investment of hundreds of billions of Sichuan, major industrial projects, two Construction is expected to be completed this year a project and put into production, from 2015 to 2016 to complete two projects. "The project is the use of foreign and domestic mineral resources, selection of international and domestic industry with the most advanced technologies, processes and equipment, to achieve all the waste, waste water, waste gas recycling and zero emissions, will build the world's safest, most environmentally friendly, the most efficient and energy-saving model molybdenum copper smelting plant. "The leaders at the groundbreaking ceremony, said Hongda molybdenum-copper project on the changing status of Chinese molybdenum copper industry to improve the level of utilization of multi-metal mine has a very important role; right support Sichuan, Deyang, especially hard-hit Shifang socio-economic development for the benefit of local people has a very important role. Shifang Chengdu is a county-level city, south of Chengdu, more than 50 kilometers, a population of about 43 million people, the comprehensive economic strength for many years among Sichuan "top ten counties" Second, the western hundred counties top ten. 2006, Shifang China Mining Association has been named "hometown of Chinese mineral water." In 2008 the "5.12" Wenchuan earthquake, there are 5,924 people were killed in Shifang, economic losses of 88.9 billion yuan.A few months ago has raised concerns about pollution Hongda Group molybdenum plating-copper project's environmental problems to local residents raised concerns about month ago, on February 21 this year, "Shifang Window" column in the online petition, which released the city's Bureau for Letters " With regard to Hongda Group Molybdenum Copper 'pollution' letter of reply ", said by the State Council" Petition Ordinance "relevant" territorial management, graded responsibility, who is in charge, who is responsible "principle, people reflect questioned Hongda Group plans to invest 104 billion yuan in building molybdenum copper production projects produced by the "pollution" was handed over to the EPA process. Handling of reply, said that the project has passed the provincial Development and Reform Commission approval, the State Environmental Protection Department for approval the proposed project. Currently
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