Production of metal germany
Metal production
The production of germanium metal depends firstly on the purity of the raw material, and secondly on its use. In nature it does not occur in a free form, but only as an impurity in sedimentary rocks, nickel, tungsten ores, silicates, coals, thermal waters, and peat. Most of the production of the metal germanium in the world is associated with the processing of sphalerite, it is also concentrated in some ores of base metals, China is its largest producer. After time-consuming, multi-step ore beneficiation operations, the metal is extracted in the form of GeO2 oxide, which is reduced by hydrogen at 600 °C to a simple substance:
Zone melting is used to produce high-purity metal. As for the manufacture of monocrystals, the production process is regulated by
Technical properties
This fusible metal is characterized by high brittleness and a melting point of 937 °C. At the same time, it is a classic semiconductor and is used in the manufacture of radioelectronics and electrical engineering. As for its alloys, they have good resistance to the aggressive influence of acidic environments. This quality is appreciated by industries such as experimental physics and chemistry, instrumentation and mechanical engineering. The element is also used in jewelry, thanks to its manufacturability. Some germanium alloys serve as solders or as anti-corrosion coatings.
Furnizor
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