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
production of pollution point source for all real-time online monitoring. Second
Shifang Mayor Xuguang Yong said the next step will mainly take four measures to be taken. First, the environmental protection department will be in strict accordance with the environmental protection facilities and production facilities be designed, constructed and used at the request of a full course of molybdenum-copper project construction supervision, production of pollution point source for all real-time online monitoring. Second, Molybdenum tube and copper project is completed, will be submitted in writing Sichuan Environmental Protection Agency trial production application, after verification pass, and through the State Environmental Protection Department acceptance, can be put into full production. Third, in the construction and production processes, environmental protection departments will strengthen supervision and law enforcement efforts to ensure the normal operation of environmental protection facilities built and to prevent environmental pollution risks. Four is to require the preparation of annual company environmental protection copper molybdenum White Paper, and passed the newspapers and network publicity. Some people impact municipal authorities8 pm last night, Shifang Municipal Government Information Office official microblogging "dynamic Shifang" release micro-Bo, informing the HTC molybdenum-copper project with the situation. Communications, said: "Shifang City Hongda molybdenum-copper project after the ceremony, a few people in the Baidu Post Bar, QQ group on environmental issues for discussion on the project, and from the onlookers, grumble, verbal attacks and gradually developed to the web series, organizing protests etc. June 30 morning, a dozen members of the public to petition Shifang Municipal concentrated in staff persuasion doubts left. evening of July 1, nearly a hundred students and hundreds of people were gathered at the entrance and HTC Shifang Municipal Plaza, two to petition demonstrations to demand cessation of the project, people still gather signatures on banners. "Communications, said: "July 2 morning, some people begin in Shifang municipal government gathered in front of a demonstration against the molybdenum-copper project, some people do not listen to discourage forcibly broke into the municipal authorities warning, smashing windows on the first floor hall 8 glass, three billboards, four propaganda poster. 13:30, gathering more and more people, in some people's instigation, incitement, the gathered public sentiment increasingly agitated and began to force the door impact municipal authorities and with pots, mineral water bottles, and other debris pound police vigilance task being performed and office workers, causing a number of civilian injuries on the spot, nearly official vehicles damaged to varying degrees, the door was pushed authorities, seriously affected the social stability and normal organs office order. During this period, the police on duty and the staff has always maintained restraint and insist on playing does not fight back, reviled not until 2 pm, further deterioration of the situation, to prevent causing more serious consequences, perform vigilance tasks police forced to use tear gas and shock bomb on radical groups to be dispersed in the disperse process, there are 13 people suffered minor injuries, all the wounded were promptly arrange 120 ambulance hospital. "" Twelve Five key projects in Sichuan. "
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