"Molybdenum ores in the production process requires the use of highly toxic chemicals, sodium cyanide, while molybdenum plating roasting in the processing of multiple hearth roaster produce large amounts of sulfur dioxide and other acid gases, on the surrounding environment to bring greater degree of damage caused by soil erosion , waste slag piles, sunny wind and dust filled the sky, cloudy rain farmland river erosion and deposition pressure, serious damage to the ecological environment. Worse add a lot of water washing chemicals, such as what the bubble base, kerosene, turpentine and other toxic substances, day and night wash stream, causing serious pollution of the river, according to consult the experts in the world is currently no way of governance, can only repair a dam to save up contaminated wastewater stopped and let it penetrate underground. Luoyang Molybdenum also occurred in several waste repository collapse, causing serious pollution incidents downstream mines tend to contain chemical ingredients sewage directly discharged, causing river pollution, thereby harming humans and animals, wastewaters contain harmful kerosene, water glass and other substances will seriously affect the county the health and safety of residents.
Production process, will produce waste water, waste gas, waste, waste water containing heavy metals and other pollutants, contain carcinogens, emissions are mainly hydrogen sulfide, sulfur dioxide, and so harmful, very high concentrations of these gases, waste pile can cause pollution irreversible, waste will be under the rain washed downstream river pollution, waste on a sunny day it will release large amounts of toxic and harmful gases. Serious damage to the ecological environment. More serious is the washing water to add many chemicals, such as what the bubble base, kerosene, turpentine and other toxic substances, not only caused serious pollution to the river, and the long-term deposit wastewater infiltration stopped, but also caused groundwater contamination. The downstream groundwater contamination up to 50 kilometers! (We Guanghan from Shifang just over 20 kilometers!!)
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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