Germanium | Definition of Germanium at Dictionary.com

definition, a scarce, metallic, grayish-white element, normally tetravalent, used chiefly in transistors. Symbol: Ge atomic weight: 72.59 atomic number ...

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  • Germanium tetrachloride -

    Germanium tetrachloride -

    Zinc-ores are roasted and sintered and can produce the GeO 2 directly. The oxide is then processed as discussed above. Application. tetrachloride is used almost exclusively as an intermediate for several optical processes. can be directly hydrolyzed to GeO 2, an oxide glass with several unique properties and applications, described below and in linked articles: Fiber optics. A notable derivative of is …

  • Nighthawk Solution - nhsol.github.io

    Nighthawk Solution - nhsol.github.io

    ’s abundance in the Earth’s crust is approximately 1.6 ppm. Only a few minerals like argyrodite, briartite, germanite, and renierite contain appreciable amounts of , but there are none in mineable deposits. seldom appears in high concentrations. It is mainly a byproduct of processing.

  • Germanium - Business Advisory Network

    Germanium - Business Advisory Network

    Production Like most minor metals, germanium is produced as a by-product of base metal refining and is not mined as a primary material.Germanium is most commonly produced from sphalerite zinc ores but is also known to be extracted from fly ash coal produced from coal power plants and some copper ores.

  • Phytomining: Harvesting Germanium May Provide a New Source ...

    Phytomining: Harvesting Germanium May Provide a New Source ...

    And because these plants are already being processed for use as biogas, extracting the may prove economical. One of the scientists working on the project explains, “There is present here, the ground is very rich in . We have the remains of waste rock piles from mining, which -rich water can drain better through.

  • CADMIUM, GALLIUM, GERMANIUM RESOURCES VIRGINIA

    CADMIUM, GALLIUM, GERMANIUM RESOURCES VIRGINIA

    GERMANIUM Germanium is a rare, grayish-white, semiconducting met- alloid that occurs with oxide minerals, mainly limonite-goet- hite gossans derived from weathering of copper, lead and zinc ores, and in coal. The metal has exceptional properties as a semiconductor.

  • US4090871A - Process for the recovery and purification of ...

    US4090871A - Process for the recovery and purification of ...

    The invention provides a process for recovering germanium as germanium oxide from a germaniferous metallic zinc which involves distilling the germaniferous metallic zinc under non-oxidizing...

  • Moving Towards Sustainable Germanium Sourcing Evaluated by ...

    Moving Towards Sustainable Germanium Sourcing Evaluated by ...

    is also produced as a byproduct production, typically present at levels above 75 ppm in , and this is the second globally most important primary source for . This life cycle assessment study evaluates primary from three production systems.

  • Germanium | Ge - PubChem

    Germanium | Ge - PubChem

    is mainly a byproduct of processing. It is a hard, grayish-white element it has a metallic luster and the same crystal structure as diamond and it is brittle, like glass.In addition, it is important to note that is a semiconductor, with electrical properties between those of a metal and an insulator. The development of the transistor opened the door to ...

  • Germanium - Element information, properties and uses ...

    Germanium - Element information, properties and uses ...

    are very rare. They are found in small quantities as the minerals germanite and argyrodite. minerals are also present in , and commercial production of is carried out by processing smelter flue dust. It can also be recovered from the by-products of combustion of certain coals.

  • Germanium | Ge Element - PubChem

    Germanium | Ge Element - PubChem

    Today, is primarily obtained from the smelting of and from the byproducts of burning certain types of coal. Jefferson Lab, U.S. Department of Energy From the Latin word Germania, Germany. Mendeleev predicted the existence of Germanium in 1871 as ekasilicon, and the element was discovered by Winkler in 1886.

  • Germanium | CRM Alliance

    Germanium | CRM Alliance

    Germanium ores are very rare. They are found in small quantities as the minerals germanite and argyrodite. Today, germanium is extracted as a by-product of zinc production and from coal fly ash. It is estimated that 75% of worldwide production of germanium is sourced from zinc ores, mainly the zinc sulfide mineral sphalerite, and 25% from coal.

  • Germanium - Assignment Point

    Germanium - Assignment Point

    minerals are also present in , and commercial production of is carried out by processing smelter flue dust. It can also be recovered from the by-products of combustion of certain coals. Applications of . is a semiconductor.

  • Germanium - Newikis

    Germanium - Newikis

    Today, is mined primarily from sphalerite the primary of , though is also recovered commercially from silver, lead, and copper . Elemental is used as a semiconductor in transistors and various other electronic devices. Historically, the first decade of semiconductor electronics was based entirely on ...

  • Germanium - an overview | ScienceDirect Topics

    Germanium - an overview | ScienceDirect Topics

    China all producers together can be considered as the main supplier of germanium, however, in Canada is the number one producer and contributes about 25% of the market needs of germanium from its Traditional zinc sources for germanium like the Gordonsville mine US-Pasminco, Nanisivic Canada, Asturiana de Zinc Spain and others have ceased their operations in …

  • Germanium | SpringerLink

    Germanium | SpringerLink

    is obtained as a by-product of or copper- . No reliable data are available for the reserves of large tracts of the world. The US Bureau of Mines estimates the combined reserves of Canada, the United States, Europe and Africa at 2,150 tonnes, with substantial reserves also available in Centrally Planned economies.

  • Elmwood-Gordonsville Mine In Gordonsville, Tennessee | The ...

    Elmwood-Gordonsville Mine In Gordonsville, Tennessee | The ...

    mining deposit report for "Deposit #5706" #5706 in Smith County, Tennessee. ... 1979 REPORTED 26534000 MT AT 3. 6% . WAS REPORTED ON RESERVE DATA SET IN 12-19-80. CUT OFF GRADE FOR TONNAGE ESTIMATES BY COMPANY IS 1. 5% . THE RESERVES ARE LIMITED BY PROPERTY BOUNDARIES. Nearby Deposits. Other deposits in the same region.

  • Germanium tetrachloride - WikiMili, The Free Encyclopedia

    Germanium tetrachloride - WikiMili, The Free Encyclopedia

     · Production of GeO 2, however, is dependent on the oxidized form of extracted from the . Copper-lead-sulfide and -sulfide will produce GeS 2, which is subsequently oxidized to GeO 2 with an oxidizer such as sodium chlorate. - are roasted and sintered and can produce the GeO 2 directly. The oxide is then processed as ...

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