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Pidgeon process. The Pidgeon process is a practical method for smelting magnesium. The most common method involves the raw material, dolomite being fed into an externally heated reduction tank and then thermally reduced to metallic magnesium using 75% ferrosilicon as a reducing agent in a vacuum. [ 1] Overall the processes in magnesium smelting ...
Magnesium chloride ( E511 [ 19]) is an important coagulant used in the preparation of tofu from soy milk . In Japan it is sold as nigari ( にがり, derived from the Japanese word for "bitter"), a white powder produced from seawater after the sodium chloride has been removed, and the water evaporated. In China, it is called lushui ( 卤水 ).
The magnesium smelter in Bécancour, Quebec used to be operated by Norsk Hydro, and was shuttered by 2011; The Dominion Magnesium Limited smelter in Haley Station, Ontario was the site for the first industrial implementation of the Pidgeon process. It began operation around 1942 and ceased operation before 2010. Secondary producers
Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic table) it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2.
The Xiafangshen Magnesium Mine ( Chinese: 下房身村东山镁石矿; pinyin: Xiafangshen cun Dongshan meishi kuang) is one of the largest magnesium mines in China and in the world. [1] The mine is located in the central part of Liaoning Province, at the Xiafangshen Sedimentary Metamorphic Magnesite Deposit. [1] The mine has estimated reserves ...
Magnesium hydroxychloride[ 1] is the traditional term for several chemical compounds of magnesium, chlorine, oxygen, and hydrogen whose general formula xMgO·yMgCl2·zH2O, for various values of x, y, and z; or, equivalently, Mgx+y(OH)2xCl2y(H2O)z−x. The simple chemical formula that is often used is Mg (OH)Cl, which appears in high school ...
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