Essay sample library > Opposing The Development of the Chu Molybdenum Mine

Opposing The Development of the Chu Molybdenum Mine

2023-01-17 13:59:02

I am against the development of Chu's molybdenum mine. Because its adverse effect is beyond the field. Mines will affect the quality of life of Vanderhoof residents by reducing air and water quality, food sources and income. Because Van der Hoff is a small geographical center that provides food and mineral resources to neighboring cities (BCC, 2009), many residents, tourists, and neighborhood residents are directly affected by this project. For the proposed infrastructure to reduce the impact, skilled labor and facilities, the cost to establish and maintain the project is very high.

Historically, the Knaben mine in southern Norway opened in 1885 and was the first dedicated molybdenum mine. It was closed in 1973, but it was resumed in 2007. Currently, we produce molybdenum disulfide of 100,000 kilograms a year (length 98 tons, short 110 tons). Major mines in Colorado State (such as Henderson Mine and Climax Mine) and the Great Mine in British Columbia State produce Molybdenite Knight as the main products and many porphyry minerals such as the Bingham Canyon mine in Utah State and the Tucikamata Mine in northern Chile The floor produces molybdenum. Copper mine by-products

Source: Molybdenum metal has not been found in nature. The main ore of molybdenum is molybdenite (molybdenum disulfide, MoS 2). It is also found in urufenite (lead molybdate) and powder (calcium molybdate). Commercially, metals are obtained by direct extraction of molybdenum ore and are recovered as a byproduct of copper mining. Isotope: Molybdenum has 24 isotopes with known half-lives of 86 to 110. Naturally occurring molybdenum is a mixture of seven isotopes and the proportions are 92 Mo (14.8%), 94 Mo (9.2%), 95 Mo (15.9%), 96 Mo (16.7% ), 97 Mo (9.6%), 98 Mo (24.1%) and 100 Mo (9.6%). The most natural and plentiful is 98 Mo, 24.1%.

As a transition metal, molybdenum easily forms a compound with other elements. Molybdenum occupies two parts per million (ppm) of the Earth's crust, but it is not found in nature. The main molybdenum ore is molybdenite (molybdenum disulfide), but it is also contained in wolfenite (lead molybdate) and powder (calcium molybdate). Soft black mineral molybdenum (molybdenum sulphide) is often mistaken for graphite or lead ore until it was analyzed by German chemist Carl Scheele in 1778 and is not a completely new element. . However, according to Chemicool, Scheele says it will take several years before actual element identification, as there is no suitable furnace for reducing white solids to metal. Indeed, Scheele was later called "unfortunate Scheele." Because he made many chemical discoveries, including oxygen.