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How is germanium produced? Quora

Germanium tetrachloride is either hydrolyzed to the oxide (GeO2) or purified by fractional distillation and then hydrolyzed.[59] The highly pure GeO2 is now suitable for the production of germanium glass. It is reduced to the element by reacting it with hydrogen, producing germanium suitable for infrared optics and semiconductor production:

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Why and how is silicon prevailing as a semiconductor?

The semiconductor materials are either elementary such as silicon and germanium or compound such as gallium arsenide. Silicon is the most used semiconductor for discrete devices and integrated ...

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Facts About Germanium Live Science

Suitable extinguishing agents Special powder for metal fires. Do not use water. ... Germanium Crystals for solar energy applications includes ptype and ntype germanium. Germanium and Siliconbased photovoltaic cells (PV Cells) for solar energy are fabricated from a positively charged or ptype silicon layer underneath a negatively charged or ...

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Germanium Korea Heated Mattress, Germanium Korea Heated ...

offers 253 germanium korea heated mattress products. About 50% of these are massager, 35% are other healthcare supply, and 7% are mattresses. A wide variety of germanium korea heated mattress options are available to you, such as free samples.

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Germanium Wikipedia

Today, germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is also recovered commercially from silver, lead, ... suitable for the production of germanium glass. It is reduced to the element by reacting it with hydrogen, producing germanium suitable for infrared optics and semiconductor production:

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is quartz suitable grinding Mineral Processing EPC

Jul 08, 2018· Φ1300,Φ 1350,Φ 1400,Φ 1500,Φ 1600 is suitable for selection of iron ore, molybdenum ore ,lead ore ,zinc. Quotation More Wafer Grinding Machine For Germanium Ingot Plate Buy Grinding .

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Germanium | Ge PubChem

Germanium is a rare metal element with a bluegray appearance and atomic symbol Ge, atomic number 32, and atomic weight

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Germanium Element information, properties and uses ...

Element Germanium (Ge), Group 14, Atomic Number 32, pblock, Mass Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. ... This makes it suitable for use in wideangle camera lenses and objective lenses for microscopes. This is now the major use for this element. ... came across an unusual ore. It was ...

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Gallium Element information, properties and uses ...

Element Gallium (Ga), Group 13, Atomic Number 31, pblock, Mass Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. ... He observed a new violet line in the atomic spectrum of some zinc he had extracted from a sample of zinc blende ore (ZnS) from the Pyrenees. ... The availability of suitable ...

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2016 Minerals Yearbook

Germanium is a hard, brittle semimetal that first was used ... for use as semiconductors or recast into forms suitable for lenses or window blanks for infrared optical devices. Legislation and Government Programs ... Ore production was projected to commence during the first

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On the geological availability of germanium | SpringerLink

On the geological availability of germanium. Authors; Authors and affiliations; Max Frenzel ... taken in this publication shows that reliable minimum estimates for the availability of byproduct metals lacking suitable reserve/resource data may be attained by using robust statistical methods and geochemical data published in the scientific ...

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USGS Minerals Information: Germanium

Germanium is mainly a byproduct of zinc ore processing. It is a hard, grayishwhite element; it has a metallic luster and the same crystal structure as diamond; and it is brittle, like glass.

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The Properties and Uses of Silicon Metal

Silicon metal is a grey and lustrous semiconductive metal that is used to manufacture steel, solar cells, and microchips. Silicon is the second most abundant element in the earth's crust (behind only oxygen) and the eighth most common element in the universe.

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GE The Germanium Spectrometer U of T Physics

Germanium spectrometers are the highest resolution gammaray detectors in existence, ... • Composition of uranium ore and the effect of refining. ... pulses into a pulse of a few microseconds duration suitable for analysis in the multichannel analyzer. Make sure the UCS30 is in Amp In mode, and that the sign of the Amp

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copper ore primary crushing

Dec 29, 2017· Iron Ore processing plant, Copper Ore Crusher,Gold Ore crushing . Crushing plant, grinding mill, mobile crusher, are especially suitable for processing iron ore, gold ore, copper ore, manganese ore, etc. and the output will be sent to the primary vibrating screen,less than 50mm will be sent to the secondary

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Facts About Uranium Live Science: The Most Interesting ...

Facts About Uranium. ... Klaproth discovered the element in the mineral pitchblende, which at the time was thought to be a zinc and iron ore. The mineral was dissolved in nitric acid, and then ...

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US2865712A Process for recovery of germanium sulfide ...

germanium copper coal bearing material Prior art date ... Any suitable coal, coke or carbon containing substance can be used, preferably coal containing 25% or more volatile matter. ... dictates that thecoal be ground to some optimum particle size whereby it can be uniformly and intimately mixed with the ore or concentrate being treated ...

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mineral Dictionary Definition :

a rare reddishgrey mineral consisting of a copper iron germanium sulfide. gibbsite. ... a green or blue mineral used as an ore of copper and for making ornamental objects. maltha, ... gypsum or plaster of Paris spread on a surface to make it suitable for painting or gilding (or a surface so prepared) lepidolite.

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Band gap Wikipedia

In solidstate physics, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states can exist. In graphs of the electronic band structure of solids, the band gap generally refers to the energy difference (in electron volts) between the top of the valence band and the bottom of the conduction band in insulators and semiconductors.

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Germanite Wikipedia

Germanite is a rare copper iron germanium sulfide mineral, Cu 26 Fe 4 Ge 4 S was first discovered in 1922, and named for its germanium content. It is only a minor source of this important semiconductor element, which is mainly derived from the processing of the zinc sulfide mineral sphalerite. Germanite contains gallium, zinc, molybdenum, arsenic, and vanadium as impurities.

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Gallium (Ga) Chemical properties, Health and ...

Several ores, such as the aluminum ore bauxite, contain small amount of gallium, and coal may have a relatively high gallium content. Health effects of gallium. ... Gallium is an ideal element to use in the bomb pits, but pollution is destructive to the earth and to the health of its inhabitants. ... Germanium . Hydrogen . Helium. Hafnium ...

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Specific Gravity Table for Metals, Minerals Ceramics

Specific Gravity Table (Typical) for Metals, Minerals and Ceramics from READE.

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Germanium Ore Crushing Production Line

germanium ore crushing production line Mobile jaw crusher is a kinds of germanium ore crushing plant developed by which is very suitable for ... jaw crusher, jaw crushing plant, ore crusher

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Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.

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SUMPTER OREGON TRANSPORTATION MAP This product is …

GE R D. C R A C K E R C R E E K R D G . R A NI T E HI L L H W Y. S U M P T E R H W Y. 4 1 0 T. 9 S. T. 9 S. T. 10 S. T. 10 S. R. 37 E. R. 37 E. SUMPTER OREGON TRANSPORTATION MAP Showing Federal Functional Classification of Roads 2018 Edition ... ROUTE ORE. ROUTE NATIONAL HIGHWAY SYSTEM ROUTE URBAN GROWTH BOUNDARY CITY LIMIT

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Aluminium Wikipedia

The chief ore of aluminium is bauxite. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. …

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Is Germanium a Miracle Cure? Healthline

Is Germanium a Miracle Cure? ... It’s also a byproduct of coal combustion and zinc ore processing. Germanium comes in two forms: organic and inorganic. ... Human studies also suggest it’s not ...

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