On the geological availability of germanium
Webgermanium dioxide in the fabrication of high-performance fibre-optic cables forming the backbone of the internet (Guberman 2011b). But germanium is also linked to other technological innovations: the first transistor was not built from silicon but germanium (Riordan et al. 1999), and al-though silicon is now the dominant raw material used for Web29 de dez. de 2013 · Frequency plots of germanium concentrations in coal. The broken line marks the location of the minimum cut-off grade (8 ppm). Labels on the abscissa are such that the column ‘<4’ shows the number of deposits with concentrations in the range from 2 to <4 ppm Ge etc. BDL below detection limit. Full size image.
On the geological availability of germanium
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WebBased on a detailed statistical analysis of chemical data published in the scientific literature, estimates were made of the minimum amounts of recoverable Ge contained within sulphidic zinc ores and coals, given current processing technologies. It is expected that at least 119 kt (∼7 kt in zinc ores and ∼112 kt in coal) of recoverable germanium exist within proven … Web1 de set. de 2024 · Helmholtz Institute Freiberg for Resource Technology - Citado por 1.033 - Geometallurgy - Economic geology - Mineral Economics
Web4 de set. de 2014 · Geological and geochemical descriptions of the Cummins Range deposit in Australia and of Bastnäs-type deposits in the Bergslagen district in Sweden are presented by Downes et al. and Holtstam et al. (), respectively.Important results from the Cummins Range deposit include recognition of shear zone-hosted, REE-rich apatite … Web1 de mar. de 2016 · On the geological availability of germanium. M. Frenzel, M. P. Ketris, J. Gutzmer; Geology. Mineralium Deposita. 2013; Based on a detailed statistical analysis of chemical data published in the scientific literature, estimates were made of the minimum amounts of recoverable Ge contained within sulphidic zinc ores and …
WebIt 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 ... Web1 de mar. de 2016 · Concerns over the future availability of gallium are due particularly to its importance in the production of thin-film photovoltaics (e.g. Fizaine, 2013). Gallium is won as a by-product from both zinc and alumina production (Jaskula, 2015a), the latter being the most important source. Since the value of gallium contained in the corresponding ...
WebBased on a detailed statistical analysis of chemical data published in the scientific literature, estimates were made of the minimum amounts of recoverable Ge contained within sulphidic zinc ores and coals, given current processing technologies. It is expected that at least 119 kt (∼7 kt in zinc ores and ∼112 kt in coal) of recoverable germanium exist within proven …
Web1 de jul. de 2016 · While a significant amount of analytical data on trace and minor element concentrations in sphalerite has been collected over the last six decades, no meta-analysis of this data has ever been conducted. In this study, the results of such an analysis are presented. While the study focusses on Ga, Ge and In, data for six other elements (Ag, … iqview8 user manualWebMankind is using a greater variety of metals in greater quantities than ever before. As a result there is increasing global concern over the long-term availability of secure and adequate supplies of the metals needed by society. Critical metals, which are those of growing economic importance that might be susceptible to future scarcity, are a … orchid plastic pots with holes home depotWeb29 de dez. de 2013 · On the geological availability of germanium On the geological availability of germanium Frenzel, Max; Ketris, Marina; Gutzmer, Jens 2013-12-29 00:00:00 Based on a detailed statistical analysis of chemical data published in the scientific literature, estimates were made of the minimum amounts of recoverable Ge contained … orchid ply share priceWebDownload Table – Estimated germanium content in zinc deposits from publication: On the geological availability of germanium Based on a detailed statistical analysis of chemical data ... iqview-sc-b-iq4 datasheetWeb19 de mai. de 2016 · The following promising types of ore deposits containing high-tech critical metals as by-products are recognized: Cu–Mo porphyry, Fe–Cu–Au and Pb–Zn skarn, base-metal epithermal, volcanic-hosted massive sulfide, base-metal stratiform, various tin deposits, and placers containing rare metals including REE. orchid plywoodWebElement Germanium (Ge), Group 14, Atomic Number 32, p-block, Mass 72.630. Sources, facts, uses, scarcity (SRI), ... Data for this section been provided by the British Geological Survey. Relative supply risk. An integrated supply risk index from 1 (very low risk) ... The availability of suitable substitutes for a given commodity. iqview8 surface mounting boxWebThe Geological Society has produced a briefing note on these vital mineral resources, to help to inform debate among scientists, policy-makers, potential investors and other industry players. Rare Earth Elements A briefing note by the Geological Society of London Introduction The rare earth elements have long been recognised as iqvia written test