Dec 13, 2017· In addition to producing copper and zinc, the mine produced 12,673 tonnes of lead and approximately 278 tonnes of germanium between 1956 and 1978. The mine had been managed on a .
The polymetallic ores are copper-rich, but also contain a diversity of base metals and rare metals, including zinc, lead, arsenic, antimony, gallium and germanium.
High Purity Germanium, a Review on Principle Theories and Technical Production Methodologi, obtained from either zinc ore or coal fly-ashes and consisting between 05% - 6% Ge [4], can follow either a hydro- or a pyro- metallurgical route, G, et al (2014) Dislocation Density Control in High-Purity Germanium Crystal Growth Journal.
Nov 26, 2008· 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-rich ore type (>125,000 t at 20% Zn .
Germanium is a strategic metal used in high-tech industry for the manufacture of optical fiber, infrared vision device, and semiconductor and for the catalysis of PET plastics. Sphalerite (ZnS) may contain hundreds ppm of germanium and is considered as the main 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 germanium tetrachloride ...
Jun 15, 2017· In 2016 zinc made up 33% of their revenue, coal 45%, and copper 22%. I like that Teck has a large and high grade zinc resource, currently the .
Feb 19, 2020· Production volume of iron ore in Algeria 2010 to 2019 Global mineral commodity production share by select country 2019 Production volume of zinc in Morocco 2010-2019
Germanium . Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, ... Today, germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is al...
Copper-germanium ore. from the famed Tsumeb mine in Namibia. Tsumeb is one of the world's premier mineral localities, home to more than 200 mineral species. The polymetallic ores are copper-rich, but also contain a diversity of base metals and rare metals, including zinc, lead, arsenic, antimony, gallium and germanium.
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).
SUBSTANCE: invention can be used in recovery technology of sparse metals from slags of copper-lead-zinc sulphide ores. Germanium recovery method from solutions of complex ore processed slag opening includes autoclave opening with alkali liquor with concentration of 20 mass. % at temperature 200÷220°C, filtration with germanium and zinc ...
According to the U.S. Geological Survey's 2016 Germanium Mineral Commodity Summary, U.S. reserves of zinc may contain as much as 2,500 tons of germanium, but because zinc concentrates are shipped globally and blended at smelters, the recoverable germanium in zinc reserves cannot be determined. On a global scale, as little as 3% of the ...
The Clarksville zinc refinery is located four kilometers southwest of Clarksville, Tennessee, beside the Cumberland River. A large portion of the U.S. zinc market lies within one-day delivery distance from the Clarksville smelter by road and low transport costs provide .
Latest on germanium MINOR METALS MARKET REPORT 07/08: Antimony prices supported by tightening prompt inventories in Europe London Aug 7, 2020 @ 17:24
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).
Nov 25, 2014· It's also a byproduct of coal combustion and zinc ore processing. Germanium comes in two forms: organic and inorganic. Both are sold as supplements. Organic germanium is .
Germanium is a typical rare and dispersed element, associating with lignite, lead-zinc deposit and copper ore. Global proven recoverable deposits of germanium amount to 8,600 metal metric tons (MMT), which are mainly distributed in United States, China and Canada, with the first two accounting for 45.1% and 40.9% of the world's recoverable germanium .
The domestic industry consisted of three germanium refineries, one each in New York, Oklahoma, and Pennsylvania, and two base metal mining operations, one in Tennessee and another in Alaska. Both .
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 germanium tetrachloride ...
Latest on germanium MINOR METALS MARKET REPORT 07/08: Antimony prices supported by tightening prompt inventories in Europe London Aug 7, 2020 @ 17:24
1986 43770 metric tons Zinc 43,770 metric tons zinc recovered 1428200 metric tons ore milled Notes THE ACTUAL PERCENT RECOVERY OF PRODUCT B IS 99. 8%; FOR PRO-DUCT C (WASTE) RECOVERY IS BASED ON LIMESTONE IN THE ORE AND IS 13. 17%.
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.
used as a depressant in flotation processes for ore treatment or Au recovery [14]. The application of tannin for selective precipitation of Ge was investigated during the processing of industrial materials from Yunnan Chihong Zinc and Germanium (China) [12], Çinkur Plant (Kayseri, Turkey) [15], or Puertollano IGCC power plant (Spain) [16].