zinc germanium process

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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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

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

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

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

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

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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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

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

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

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

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

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

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

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

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

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

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

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