memproses zinc ore germanium

Process for the recovery and purification of germanium from zinc …

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

Behaviors of gallium and germanium associated with zinc …

and the particle size of the zinc concentrate are shown in Table 1 and 2, respectively. As can be seen in Table 1, the contents of gallium and germanium in the zinc concentrate were determined to be 0.0130 and 0.0168 wt%, respectively. Table 1. Chemical composition of the concentrate used in leaching experiments (wt %)

Germanium Deposits in the United States - mrdata.usgs.gov

Currently, germanium is produced as a byproduct of zinc-bearing ore deposits. Acid mine drainage may have elevated signatures of germanium because of germanium's strong association to sulfide minerals (Shanks and others, 2017). Germanium is also recovered from lignite and coal deposits worldwide (Melcher and Buchholz, 2014).

Germanium geochemistry and mineralogy - USGS

Germanium is enriched in the following geologic environments: 1. (1) iron meteorites and terrestrial iron-nickel; 2. (2) sulfide ore deposits, particularly those hosted by sedimentary rocks; 3. (3) iron oxide deposits; 4. (4) oxidized zones of Ge-bearing sulfide deposits; 5. (5) pegmatites, greisens, and skarns; and 6. (6) coal and lignitized wood.

Zinc - PUB2897 | Missouri Department of Natural Resources

Sphalerite (ZnS) is the primary zinc ore in Missouri, sample from Tri-State District. ... Other elements associated with sphalerite mined in southwest Missouri include germanium, cadmium, gallium and indium. Economic Importance. Missouri has been a significant zinc producer since the mid-1860s. Zinc mining was a major driver for development ...

Process for the recovery and purification of 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 non-oxidizing conditions, recovering the distillation residue which contains the germanium, leaching the recovered distillation residue with chlorine water to convert the germanium into …

Recent advances in the recovery of germanium during the zinc …

To realize the efficient recovery of zinc, gallium, and germanium resources, Danxia smelter used a two-stage countercurrent oxygen pressure leaching process to recover gallium and germanium in 2009 ( Fig. 9 (b) ). The first-stage leaching solution is …

Germanium: 2022 World Market Review and Forecast to 2031

About Germanium Market. germanium (Ge) supply is primarily dependent on zinc mining as it is produced as a by-product from zinc ore and is not mined as a primary material; recycling is an important source of Ge supply; about 30% of the world's total production of germanium is from recycled material

Germanium Deposits in the United States - ScienceBase-Catalog

These deposits host 60 million tonnes (t) at 100–200 parts per million (ppm) Ge and 28 million t at 50–150 ppm Ge, respectively. Currently, germanium is produced as a byproduct of zinc-bearing ore deposits. Acid mine drainage may have elevated signatures of germanium because of germanium's strong association to sulfide minerals (Shanks ...

Zinc–germanium ores of the Tres Marias Mine, Chihuahua, Mexico

The Tres Marias carbonate-hosted Zn–Ge deposit in Chihuahua, Mexico contains sphalerite with the highest average Ge (960 ppm) and willemite with the highest reported Ge contents of Mississippi-Valley-type (MVT) deposits worldwide. This has prompted current exploration efforts to focus on the deposit as a high-grade source of germanium. The sulfide …

How to Increase Germanium Extraction from Zinc …

As seen, leaching the H2SO4-leached residue with 250 kg/mt HF for 2 h at 80°C and 10% pulp solids extracted 93 % of the remaining germanium, bringing total germanium extraction from approximately 70 to 98%. (The high cost of HF could make this alternative less viable.) Modify the two-stage zinc leaching procedure.

Zinc–germanium ores of the Tres Marias Mine, Chihuahua, Mexico

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 ...

Mercury and Other Trace Elements In Sphalerite and …

And Appalachian Zinc Districts GEOLOGICAL SURVEY BULLETIN 1251-F. Mercury and Other Trace Elements ... GEOLOGICAL SURVEY BULLETIN 1252-F A discussion of the mercury, cadmium, germanium, gallium, and strontium content of sphalerite from ore deposits of the Central and Eastern United States UNITED STATES GOVERNMENT PRINTING OFFICE, …

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

Zinc germanium ores of the Tres Marias Mine, Chihuahua, …

germanium. The sulfide-rich ore type (>125,000 t at 20% Zn and 250 g/t Ge) contains Fe-rich botryoidal sphalerite (type I) associated with solid hydrocarbons. This type ... poor "oxidized" zinc ore (up to 50 wt.% Zn; 250 to 300 ppm Ge) is a fine-grained, often friable, alteration product of the sulfide ore and associated limestone and

Processing Zinc Ore Germanium

It is mainly a byproduct of zinc ore processing. The importance of recycled germanium recovered from end-of-life products, such as fiber optics, military vehicles, and solar cells, should not be underestimated. ... Oct 09, 2019 Its also a byproduct of coal combustion and zinc ore processing. Germanium comes in two forms organic and inorganic ...

Kihabe-Nxuu Zinc/Lead/Silver/Germanium and Vanadium Project - Botswana

The Kihabe and Nxuu deposits, 7 kms apart, contain indicated and inferred 2004 JORC compliant resources of 25 million tonnes @ 3% Zn/Pb together with 3.3 million ounces of Silver at Kihabe. Both the Kihabe and Nxuu deposits also contain credits of Germanium and Vanadium mineralisation which are not included in the above resource estimate.

Estimated germanium content in zinc deposits | Download Table

The remainder of the primary germanium production is recovered from the leaching of zinc. However, coal makes up the vast majority (89-94% depending on cut-off grade) of potential supply (Frenzel ...

Research on the Behavior of Germanium in the Leaching Process …

In order to dissolve zinc and germanium, sulfuric acid leaching is usually the first step when processing germanium -bearing zinc oxide . ... Huang Z, Zhou G (2010) Sulfur isotopic composition of the Tianqiao Pb–Zn ore deposit, Northwest Guizhou Province, China: Implications for the source of sulfur in the ore-forming fluids. Chin J Geochem ...

On the geological availability of germanium | SpringerLink

Germanium has been known to occur as an impurity in sphalerite for over a century (Urbain 1909), and techniques for its extraction from zinc smelting residues were developed early on, long before it had found any technological applications (Buchanan 1916, 1917; Dennis and Papish 1921).From the 1930s onwards, due to the advent of new and very …

Leaching of zinc and germanium from zinc oxide dust in …

1. Introduction. The two main sources of germanium for industrial production are smelting residues from lead-zinc mines and coal flue ash (Depuydt et al., 2007, Nusen et al., 2015).Zinc oxide dust with high germanium content is obtained by pyrometallurgical enrichment of lead-zinc ore residue containing germanium, that is, zinc oxide dust is prepared by …

Germanium - USGS

Tennessee, and Washington. Based on an analysis of zinc concentrates, U.S. reserves of zinc may contain as much as 2,500 tons of germanium. Because zinc concentrates are shipped globally and blended at smelters, however, the recoverable germanium in zinc reserves cannot be determined. On a global scale, as little as 3% of the germanium

(PDF) Recovery of germanium and other valuable metals from zinc …

Kul and Topkaya [14] reported the recovery of germanium from Fig. 1 Distribution of Ge in various minerals found in earth crust [7,9] Cu-Pb-Zn ore was studied at the Cinkur Zinc Plant in Kayseri ...

High Purity Germanium, a Review on Principle Theories and …

production steps of Germanium from mineral concentrate to crystal growth has been shown. Germanium end concentrate, obtained from either zinc ore or coal fly-ashes and consisting between 0.5% 6% Ge - [4], can follow either a hydroor a pyro- - metallurgical route. The hydrometallurgical route includes leaching using sulfuric Figure 4.

Zinc Ore - an overview | ScienceDirect Topics

The presence of gold together with indium and germanium fingerprints the ore. As germanium is very hard to be measured non-destructively in silver, ... With a copper– zinc ore, sphalerite is subsequently floated from the chalcopyrite tailings by activating it with copper sulfate [48]. However, at the same time, zinc hydroxide is formed at the ...

Middle Tennessee Mines (USA) | Nyrstar

History. Middle Tennessee Mines have a nearly 50 year history. Nyrstar acquired and consolidated the operations in 2009. In December 2015, the Middle Tennessee Mines were put on care and maintenance, but Nyrstar commenced actions to restart operations in September 2016, and recommenced production in Q2 2017 with the site now being ramped up ...