gallium and germanium recovery from ,73 pct of the germanium was extracted. controlled h2s04 concentration was also the key for high metal extractions (97 pct ga, 87 pct ge) from the utah ore..germaniumgiving microelectronics an efficiency boost,germanium was discovered in the late 1800s within silver ore at a mine near freiberg, compounds and metals are extracted that are designed for a wide..method of recovering selenium and/or ,6, 1959, ser- no. 791,526 claims. (cl. 23-299) this invention relates to a novel method for the extraction and recovery of selenium and germanium from ores, .extraction of gallium and germanium from zinc refinery ,. ge and 0.30.4 wt. ga with zn, sio2, cu, fe, as and pb as the main components. both gallium and germanium exist as their dissociative or..
he said the region is very well-suited to the extraction of germanium due to the composition of the soil. there is zinc ore present here, the ground ,chemical properties, health and ,chemical properties, health and environmental effects of germanium. they are often made from germanium to which small amounts of arsenic, gallium, or other metals. germanium sulfide with 8 of the element, but even this is not mined.
the invention is more particularly directed to the extraction of gallium or germanium from gallium or germanium containing ores. state of the art; in the united ,germanium current and novel recovery processes ,none of the ge-bearing minerals is mined solely for its content, and most of the recovered ge is a by-product from ores and coal processing . therefore, the
determination of germanium in silicate rocks and sulfide ore by hydride after digestion of the sample, the germanium is extracted directly into a mixture of ,moving towards sustainable germanium sourcing evaluated ,germanium is also produced as a byproduct from zinc production, typically present at levels above 75 ppm in zinc ores, and this is the second
sphalerite (zns) is the most common mineral in sulfide deposits, and most of zn and critical elements such as ge, ga, in, etc. are extracted from sphalerite ore ( ,the chemistry of germanium,the very easy extraction of lead from its ores made it one of the few metals used extensively from earliest times. the most important ore of lead is galena or lead
from missouri zinc ores, and to extract the germanium from them, in order to determine whether these residues could be used to an advantage as a source of ,the extraction and refining of germanium and gallium, germanium is mostly extracted from ge -containing lignite smoke    and ash      by pyrometallurgical concentration, and from the lead and
the process specified in this patent consists in the extraction of germanium from weakly acidic solutions to which tartaric acid (or other hydroxycarboxylic acid) is ,germanium - an overview,ge does not appear in commercial quantities as a native ore but is produced principally as a byproduct of zinc processing, with a smaller amount from the
while both the supply potentials of gallium and germanium are 10 times a large number are produced exclusively as by-products from the ores of other ,host minerals for the gallium-germanium ores of the apex ,tions, and both gallium and germanium are concen- some ore was produced in most years up to the 1960s. extracted but is recovered by electrolysis. zinc is
he said the region is very well-suited to the extraction of germanium apparatus with a capacity of 1,000 liters or 10 cubic meters instead of 20 ,the extraction of germanium and gallium from germanite. ii ,maining elements of the ore. a superior method was introduced by berg and keil,4 who recover the galliumby extracting gallium trichloride from an acid solution
the same way, ge is retrieved as a by-product of sul des ores (e.g., zn and cu-zn-pb ores);. therefore, residues obtained from the ore processing, e.g., smelting ,spectrophotometric determination of germanium in ores ,the sample is decomposed by fusion with sodium peroxide and the cooled melt is dissolved in dilute sulphuric acid. silica, if 50 mg, is removed by volatilization
4.5 shows a flowchart of extraction, production, and reclamation of ge. first, ge ores, or minerals such as germanite and renierite containing around 510 ge, ,recovery and separation of gallium(iii) and germanium(iv ,part ii: solvent extraction the extraction of both ga(iii) and ge(iv) was germanium is a rare element, which does not occur in a specific ore body (liu et al.,
samples were collected and ma- lyzed from the following sites: ore on the dumps and mine tailings at the former tri-state zinc co., bowers-campbell mine near ,extraction processes for gallium and germanium mineral ,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
due to the strong complexation of ferric iron and oxalate, oxalic acid is also widely used in the removal of iron from quartz ores and these results ,on the geological availability of germanium,for hard coals there appears to be a problem in that not a single mine is known to produce or have produced coal with ge concentrations as high
in the alkaline extract, about half is associated with the humic acids, and the rest is associated with the low-molecular organic acids. the contribution of w mineral ,reaction, water, uses ,extraction. germanium in zinc ores is heated in the presence of chlorine gas. germanium chloride (gecl 4 ) is formed: pure germanium metal is then produced by
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