germanium ore concentrating

Germanium - Wikipedia

Some zinc-copper-lead ore bodies contain enough germanium to justify extraction from the final ore concentrate. An unusual natural enrichment process causes a high content of germanium in some coal seams, discovered by Victor Moritz Goldschmidt during a broad survey for germanium deposits.

Germanium being extracted from plants - Business Insider

Sep 07, 2015· The element is a semi-conductor and was used to develop the first transistor because it is able to transport electrical charges extremely quickly. Nowadays, silicon-germanium alloy is ...

Zinc Ore Analysis - High-Technologies Group

5-2 Zinc Baked Ore Table 3 displays the analysis results of zinc baked ore. Zinc baked ore is zinc concentrate ignited with coke and oxidized. The purpose is to remove the sulfur by oxidizing the sulfide. Consequently, at this step determining the density of sulfur along with the density of zinc is essential.

On the geological availability of germanium | SpringerLink

Dec 29, 2013· It is expected that at least 119 kt (∼7 kt in zinc ores and ∼112 kt in coal) of recoverable germanium exist within proven reserves (at present stage of knowledge) at grades in excess of 100 ppm in sphalerite and 200 ppm in coal, while at least 440 kt (∼50 kt in zinc ores and ∼390 kt in coal) should become recoverable in the future ...

Is There A Fortune To Be Made On Mars? - Forbes

Sep 26, 2016· Is There A Fortune To Be Made On Mars? ... Or genetically engineered biology that grows best ... The solar wind hydrogen trapped in the lunar regolith also has a very low deuterium concentration.

Is Germanium a Miracle Cure? - Healthline

Is Germanium a Miracle Cure? Medically reviewed by Debra Rose Wilson, PhD, MSN, RN, IBCLC, ... It's also a byproduct of coal combustion and zinc ore processing. Germanium comes in two forms ...

Germanium separation and purification by leaching and ...

Sep 30, 2016· Precipitation experiments revealed that germanium purification with tannic acid presented a better result compared to sodium hydroxide and ammonia. Under optimum conditions, contents of germanium and iron in the solution after precipitation were 0.1505% and 14.7% with precipitation yields of 91% and 52%, respectively.

Shanghai Metals Market - Copper Price Chart,China Copper ...

The latest and historical Copper prices graph and charts,China Copper metal export and import market data and news in Shanghai Metals Market(SMM).

Germanium | Ge - PubChem

Germanium is mainly a byproduct of zinc ore 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 germanium is a semiconductor, with electrical properties between those of a metal and an insulator. The development of the germanium transistor opened the door to ...

Copper extraction - Wikipedia

Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.

Asian Metal - Germanium prices, news and research

Concentrate Germanium content min 5% up to 99% Joint Stock Company Germanium buy Ge concentra Zn51% S30% Ge840g Zn Ge concentrate ... Chrome Ore. Manganese Ore. Steel Raw Materials. Coal. Coke. Iron. Iron Ore. Steel Billet. Steel Scrap. Industrial Minerals. Boron. Phosphorus. Sulphur. Carbon Steel. Wire Rod. Rebar. Sections.

DETERMINING THE ISOTOPIC CONCENTRATION OF …

A high-purity Germanium (HPGe) detector was used to obtain high-resolution spectra of gamma-ray emissions from 3 uranium sources: a highly enriched uranium (HEU) source, a uranium ore source, and a uranyl acetate source. (The activities and isotopic compositions of these sources are listed in Chapter 2.)

ZINC CONCENTRATE SAFETY DATA SHEET - Teck

June 12, 2015 Zinc Concentrate Page 2 of 8 Emergency Overview: A dark brown, heavy, soil-like material that is not flammable or combustible under normal conditions of transport and storage. However, when heated strongly in air it will burn, releasing toxic and irritating sulphur dioxide gas as well

Germanium (Ge) - Chemical properties, Health and ...

Germanium. Pure germanium is a hard, lustrous, gray-white, brittle metalloid. It has a diamondlike crystalline structure and it is similar in chemical and physical properties to silicon.Germanium is stable in air and water, and is unaffected by alkalis and acids, except nitric acid.

Germanium - ScienceDirect

Germanium is a constituent of various medicinal plants and microorganisms (Park and Han, 1979, Slawson et al., 1992, Staufer, 1980). Germanium has been found to accumulate in a variety of microorganisms, with the accumulation rate depending on environmental pH, temperature, and silicic acid concentration within the cell.

Vanadium processing | Britannica.com

Vanadium processing: Vanadium processing, preparation of the metal for use in various products. Vanadium (V) is a grayish silver metal whose crystal structure is a body-centred cubic (bcc) lattice, with a melting point of 1,926° C (3,499° F). The metal is used principally as an alloying addition to high-strength

What does germanium mean? - Definitions.net

GCIDE (0.00 / 0 votes) Rate this definition:. Germanium (n.). A rare element, discovered in 1885 in a silver ore (argyrodite) at Freiberg. It is a brittle, silver-white metal, chemically intermediate between the metals and nonmetals, resembles tin, and is in general identical with the predicted ekasilicon.

[Ar]4s 3d 4p USGS Mineral Resources Program Germanium ...

Germanium is a semiconducting metalloid with electrical properties between those of a metal and an insulator. Germanium was discovered in the late 1800s within silver ore at a mine near Freiberg, Germany. The German chemist who described the element, Clemens Winkler, named it germanium, after his native country.

Germanium - Revolvy

Oct 08, 2011· Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon . Pure germanium is a semiconductor with an appearance similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.

smart-elements® - Buy Germanium online

Germanium is stable in air and water and is unaffected by alkalis and acids, with the exception of nitric acid. It is a poor conductor of electricity but has exceptional properties as a semiconductor material and it is in this area where germanium is primarily used.

Germanium - Element information, properties and uses ...

As a semiconductor, germanium allowed the production of a solid state equivalent to the diode. Like most semiconductors, germanium can have impurities added to make it an electron donor - a so-called n-type material - or an electron acceptor, called p-type. By marrying p and n type strips of germanium, the element provided the same diode effect.

Mining - The RuneScape Wiki

Mining is a gathering skill that allows players to extract ores, gems, rune essence, geodes and other resources from rocks in mines throughout RuneScape. Mined ores can be smelted at a furnace, turning them into bars that can be made into metal objects using the Smithing skill, but also sometimes the Construction skill or the Crafting skill. On the map, mines and mining sites are identified ...

2012 Minerals Yearbook

of a germanium concentrate. all germanium concentrates are purified using similar techniques, regardless of the source of the concentrates. The concentrated germanium is chlorinated ... of 2011 owing to a decrease in mill throughput and ore grades (Teck resources Ltd., 2013, p. 46).

Germanium | Article about germanium by The Free Dictionary

The chief ore of germanium is germanite, which contains copper, sulfur, about 7% germanium, and 20 other elements. Germanium is produced as a byproduct of the refining of other metals; there is considerable recovery from flue dusts and from ashes of certain coals with high germanium content.

How is pure germanium found? - Quora

FROM WIKIPEDIA: "Germanium'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 germanium, and none in mineable deposits. Some zinc-coppe...

Extraction of gallium and germanium from zinc refinery ...

Extraction of gallium and germanium from zinc refinery residues by pressure acid leaching. ... Independent gallium and germanium ore deposits are rare in nature because gallium and germanium are mainly associated with minerals of other metals. Gallium and germanium cannot be recovered from their associated ores using economical and ...

RI 94·19 REPORT OF INVESTIGATIONS/1992 r-------- …

Effect of H2S04 concentration on metal extraction from gallium-germanium ore ..... . Effect of leach temperature on metal extraction from gallium-germanium ore ..... . Effect of leach time at various acid concentrations on metal extraction from gallium-germanium ore .. .

Where is germanium found - answers.com

Germanium is produced mainly from sphalerite a zinc ore, but recent work indicates fly ash from coal burning is a rich source. Once collected the crude germanium ingots are purified by zone ...

Germanium Statistics and Information - USGS

Germanium is mainly a byproduct of zinc ore 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 germanium is a semiconductor, with electrical properties between those of a metal and an insulator. The development of the germanium

Mineralogical distribution of germanium, gallium and ...

Germanium, gallium and indium are in high demand due to their growing usage in high-tech and green-tech applications. However, the mineralogy and the mechanisms of concentration of these critical elements in different types of hydrothermal ore deposits remain poorly constrained. We investigated the mineralogical distribution of Ge, Ga and In at the Mt Carlton high-sulfidation epithermal ...

NIOSHTIC-2 Publications Search - 10011639 - Gallium and ...

At a concentration of 2.9M H2SO4, 95 pct of the gallium was extracted, and at a concentration of 0.6M H2SO4, 73 pct of the germanium was extracted. Controlled H2SO4 concentration was also the key for metal extractions (97 pct Ga, 87 pct Ge) from the Utah ore. Such control was achieved using a two-stage countercurrent leach circuit.

Study on Extracting of Germanium with Trioctylamine ...

Graph 8 also told us that the stripping rate of germanium increased with phase ratio increasing.At this time the germanium concentration of water phase decreased,it could not achieve the purpose of Jie Liang et al. / Energy Procedia 17 ( 2012 ) 1965 â€" 1973 1973 concentrating germanium.When O/A=2/1, the single anti-extractive rate of ...