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zinc germanium process

Germanium is produced almost exclusively from waste residue of hydrometallurgical zinc processing operations Llewellyn 1989 Currently highgrade domestic zinc residues containing enough germanium to supply the annual needs of the US are processed in foreign countries by proprietary techniques to recover the germanium Plunkert 1985

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Germanium Properties History and Applications
Germanium Properties History and Applications

Jun 25 2019 · 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 Regardless of the source of material all germanium concentrates are first purified using a chlorination and distillation process that produces germanium tetrachloride GeCl4

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Processing Zinc Ore Germanium
Processing Zinc Ore Germanium

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Germanium  Metals and Alloys  Products made by Indium
Germanium Metals and Alloys Products made by Indium

Germanium Germanium is extracted from germanium bearing zinc ores or from certain coal ores collecting the flue dusts after the burning process It can occasionally be found in copper ores

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Extraction Processes for Gallium and Germanium Mineral
Extraction Processes for Gallium and Germanium Mineral

Nov 08 2017 · Gallium is conventionally obtained as a byproduct of aluminum and germanium as byproduct of zinc processing An exception to this rule is the Apex Mine ore which has served as the only primary source in the world for direct production of gallium and germanium

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Zinc processing  Ores  Britannica
Zinc processing Ores Britannica

The basic steps in this process include 1 preparation of a zinc sulfate solution by leaching zinc oxide calcines produced by the roasting of sulfide concentrates in dilute sulfuric acid 2 purification of the resulting zinc sulfate solution and 3 electrolysis of the purified solution

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Metals and Alloys  Products made by Indium Corporation
Metals and Alloys Products made by Indium Corporation

Germanium Germanium is extracted from germanium bearing zinc ores or from certain coal ores collecting the flue dusts after the burning process It can occasionally be found in copper ores We refine germanium at our facility in the USA

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Other Metals  Teck
Other Metals Teck

Teck is one of the world’s largest integrated germanium producers Germaniumbearing concentrates are processed at our integrated leadzinc refinery in Trail We produce a wide offering of high quality germanium products many of which have been developed in conjunction with our customers

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Leaching of Germanium from Zinc Residue in H 2 SO 4 SO
Leaching of Germanium from Zinc Residue in H 2 SO 4 SO

Zinc residue with high germanium a waste solid product of hydrometallurgical zinc process is dumped continuously causing the loss of germanium Zinc residue was characterized by chemical analysis Xray diffraction and inductively coupled plasma mass spectrometry methods The results showed that the mineralogical compositions of the zinc residue used in this research were zinc ferrite

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Processing Zinc Ore Germanium
Processing Zinc Ore Germanium

Vertical grinding mill Ultra fine vertical grinding mill MTW european grinding mill MB5X158 pendulum suspension grinding mill Trapezium mill T130X superfine grinding mill

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Germanium plating as an alternate to Zinc plating
Germanium plating as an alternate to Zinc plating

Jun 23 2013 · Germanium plating might be possible at a laboratory scale but it surely isnt the answer to this problem Zinc plating or preferably a zinc alloy plating like zinccobalt zinciron zincnickel is the correct finish in principle

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Extraction Processes for Gallium and Germanium Mineral
Extraction Processes for Gallium and Germanium Mineral

Gallium is conventionally obtained as a byproduct of aluminum and germanium as byproduct of zinc processing An exception to this rule is the Apex Mine ore which has served as the only primary source in the world for direct production of gallium and germanium

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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 nonoxidizing conditions recovering the distillation residue which contains the germanium leaching the recovered distillation residue with chlorine water to convert the germanium into germanium tetrachloride

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Atomicscale combination of germaniumzinc nanofibers for
Atomicscale combination of germaniumzinc nanofibers for

May 30 2019 · Alloy anode materials are receiving renewed interest Here the authors show the design of GeZn nanofibers for lithium ion batteries Featured by a

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Germanium Statistics and Information  USGS
Germanium Statistics and Information USGS

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 In addition it is important to note that germanium is a semiconductor with electrical properties between those of a metal and an insulator The development of the germanium

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Review of germanium processing worldwide  ScienceDirect
Review of germanium processing worldwide ScienceDirect

It is planned to process the material at the Kokkola zinc refinery in Finland Germanium 2002 On September 9 2003 Boliden and Outokumpu signed a Letter of Intent whereby Boliden intends to acquire all Outokumpu’s mining and smelting operations within zinc and copper and to sell its Fabrication and Technology Sales units to Outokumpu

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Occurrence state and sulfuricacid leaching behavior of
Occurrence state and sulfuricacid leaching behavior of

In this study a germaniumbearing secondary zinc oxide produced through a fuming process of lead smelting slag and zinc leaching residue in a lead and zinc smelter in China was applied as raw material The smelter uses sulfuricacid leaching and the tannin precipitation process to recover germanium from secondary zinc oxide

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A Stepbystep Guide to the Zinc Electroplating Process
A Stepbystep Guide to the Zinc Electroplating Process

Zinc electroplating is the most commonly used process for coating metals in order to provide protection against corrosion This article describes the steps involved in the zinc electroplating process Zinc electroplating is one of the most popular methods that is used all around for the purpose of electroplating

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ZINC ELECTROPLATING Zinc Electroplating  Pavco
ZINC ELECTROPLATING Zinc Electroplating Pavco

is still a fair amount of cyanide zinc plating done in a number of countries and cyanide processes are still considered by many to be the benchmark to which all other processes are compared Operating requirements for a cyanide zinc plating process are really minimal when compared to the other zinc plating processes

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Recovery of Indium and Germanium from Residues of Zinc
Recovery of Indium and Germanium from Residues of Zinc

Two optional process concepts for recovering indium and germanium from the zinc process residues are presented i RIGAT process where twolead bearing alloys from Imperial Smelting Process are treated and ii Jarogain process where sidestreams eg jarosite and gothite from RLE RoastingLeachingElectrowinning are processed

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Germanium  Amazon S3
Germanium Amazon S3

germaniumbearing ore was exported to Canada for processing A Tennessee operation which closed in mid2003 was sold to a limestone producer that will not process zinc or the germaniumrich residue A germanium refinery in Utica NY produced germanium tetrachloride for

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Germanium Gallium Ore Leaching with Sulfuric Acid
Germanium Gallium Ore Leaching with Sulfuric Acid

Germanium Extraction From Figure 1 it is apparent that in the leaching of Apex ore germanium solubility decreased substantially in highly concentrated sulfuric acid solutions This same behavior was observed in the leaching of germanium from zinc processing residues Harbuck 1989

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