Selective extraction of uranium from uranium–beryllium ore by acid leaching
Results indicated that treatment of the ores in 0.2 M sulfuric acid at 348.5 K for 50 min with the solid–liquid ratio of 0.25 g/mL is optimum. Under optimal conditions, the leaching efficiencies ...
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CONSIDERATIONS IN SOLVENT EXTRACTION PROCESSING OF U.S. BERYLLIUM ORES
@article{osti_4554280, title = {CONSIDERATIONS IN SOLVENT EXTRACTION PROCESSING OF U.S. BERYLLIUM ORES.}, author = {Rosenbaum, J B and Dannenberg, R O and George, D R}, ... Solution for the solvent extraction studies was prepared by H/sub 2/SO/sub 4/ leaching of ore contairing 0.8% BeO. Before solvent extraction of Be, the …
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Fluorine removal from high-fluorine beryllium ore by …
Introduction. Beryllium is a lightweight, naturally-occurring metal that is found in beryl, phenacite, chrysoberyl and bertrandite ores, its concentration is about 6 ppm in the earth's crust (Zaki et al., 2005, Fouad et al., 2011, Robert et al., 2010).Beryllium is a strategic metal due to its uses in electrical components, aerospace and nuclear energy, …
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US2273168A
US2273168A Extraction of beryllium from ores. US4029498A Process for treating manganese nodules. US2823113A Process of treating vanadium and molybdenum ores. US3677741A Method of processing ferrophosphorus. US2341873A Separation of nickel from ores.
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Kinetic study on leaching process of beryl with basic …
Beryllium is refined from ores containing beryllium, and in recent years, about 90% of beryllium has been refined from an ore called bertrandite (Be 4 Si 2 O 7 (OH) 2) from the Spor Mountain mine in Utah, USA [3]. ... Although the leaching rate of beryllium also decreases slightly, that of aluminum and silicon decreases linearly with increasing ...
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Kinetic study on leaching process of beryl with basic …
The leaching reaction of beryl in aqueous NaOH solution was investigated from the viewpoins of a reaction kinetic using the various models and the following was …
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EXTRACTING METALS FROM SULFIDE ORES
Many important metals are present in nature combined with sulfur as metal sulfides; these include cadmium, cobalt, copper, lead, molybdenum, nickel, silver, and zinc. In addition, gold and platinum group metals are associated with sulfidic base metal ores. The extraction of metals from their ores has been an essential factor in the creation and ...
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Determining Iron Grades of Ores or Concentrates Containing …
The invention relates to non-ferrous metallurgy and is used for extracting beryllium from genthelvites when processing the raw minerals (ores, concentrates) by heap and vat leaching.
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Kinetic study on leaching process of beryl with basic …
Beryllium is refined from ores containing beryllium, and in recent years, about 90% of beryllium has been refined from an ore called bertrandite (Be 4 Si 2 O 7 (OH) 2) from the Spor Mountain mine in Utah, USA [3]. ... The leaching rate of beryllium showed increasing trend with time at each temperature.
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Beryllium
The chief ores of beryllium are beryl and bertrandite, which is also a silicate. Sometimes truly enormous crystals of bertranide turn up, one specimen found in Maine in the USA was over 5 metres in length and weighed almost 20 tonnes. ... Beryllium is a silvery-white, lustrous, relatively soft metal of group 2 of the periodic table. The metal ...
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The Use of Acid Leaching to Recover Metals from Tailings: A …
The sample consisted of 93–94% non-metallic and 5–7% metallic components, with 0.5192% copper, of which 93.64% was oxidized. Initially, a flotation process recovered 0.489% copper. Subsequently, an agitated acid leaching process assessed the effects of acid concentration, temperature, and time.
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Selective extraction of uranium from uranium–beryllium …
The effects of sulfuric acid concentration, temperature, liquid–solid ratio and leaching time on the leaching efficiency were studied experimentally. Results indicated that treatment of the ores in 0.2˝M sulfuric acid at 348.5˝K for 50˝min with t–uid ratio of 0.25˝g/mL is optimum. Under optimal conditions, the leaching efficiencies
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Selective extraction of uranium from …
cal stabilities of uranium and beryllium, an acid leaching method was employed in this work to selectively extract uranium from uranium–beryllium ore. The effects of sulfuric …
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Accessing Metals from Low-Grade Ores and the …
efforts aimed at unlocking its potential for metal extraction from ores. Furthermore, bi-oleaching offers more appealing advantages, such as energy efficiency and broad-spectrum applicability to a diverse range of ore types and grades, as well as the processing of ores or mixtures containing very low concentrations of target metals [15,16].
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Enhancement of Gold Heap Leaching by Using a Reagent …
A relatively low yield during precious metal recovery by heap leaching (50 to 80 %) is associated with a number of reasons, including the difficulty of selecting the optimal process parameters due to the wide range of gold grain sizes: ultra-dispersed (nano-range) — from 10 –9 to 10 –7 m, fine-dispersed (meso-range) — from 10 –6 to 10 –5 m, and …
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Method for extraction of beryllium from raw genthelvite …
The invention relates to non-ferrous metallurgy and can be used for extracting beryllium from genthelvite and bertrandite groups when processing the raw minerals (ores, concentrates) by heap and vat leaching. The objective of the invention is to disclose a method of teaching beryllium from danalite (Fe 8 (BeSiO 4 )6S 2 ), genthelvite (Zn 8 …
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Kinetic study on leaching process of beryl with basic …
The best fit to the mixed kinetic suggested by Jander was obtained for beryllium, aluminum, and silicon leaching from beryl. The leaching reaction from beryl …
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Study on removal of beryllium from uranium …
This experiment proves that activated carbon after acid leaching can effectively remove beryllium from uranium beryllium ore wastewater and has the advantages of low price and a simple process. H-AC can be an excellent substitute for …
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Extraction of beryllium from Indian beryl by ammonium hydrofluoride
Andreev et al., 2008 have claimed a promising method of extracting beryllium from bertrandite and phenacite ores using NH 4 F and NH 4 HF 2 as fluorinating agents. ... (150 °C–400 °C) and room temperature (RT) water leaching for converting beryllium value of the beryl ore into water soluble beryllium fluoride with recovery of more than 90% ...
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Toxic metals and the risks of sludge from the treatment of …
The high leaching migration of Be is attributed to the high liberation of host mineral phases. ... Beryllium ores are mostly beryllium aluminum silicate minerals, known as berylite (Can et al., 2022), with the largest parametrial content being the most closely related epidote and the common impurity quartz. During the smelting of beryllium ore ...
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Beryllium—A Critical Mineral Commodity—Resources, …
processes beryllium ores to produce beryllium products in various forms at its refinery in Songbai, Hunan Province. The plant has an ... and leaching the partially devitrified frit with sulfuric acid. Impurities such as iron and aluminum are removed from the beryllium sulfate leach solutions by solvent extraction. About 87 percent of the ...
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A STUDY ON THE EXTRACTION OF BERYLLIUM FROM …
previously described [7]. The leaching container is made of titanium and the speed of its stirrer reaches about 1200 r.p.m. 3. RESULTS AND DISCUSSION. 3.1. Silicofluoride process or pyro –hydrometallurgical techniques This process for extracting beryllium from beryl ore is more elegant than the sulfate process since by its use
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Review on the Beneficiation of Li, Be, Ta, Nb-Bearing …
In bertrandite-bearing ores, the main gangue minerals associated with bertrandite ore are fluorite, quartz, mica, etc. In China, the most commonly used mineral processing method of bertrandite-bearing ores is the flotation-leaching combined method. Zheng and his coworkers, in 2012, used the oxidized paraffin soap and oleic acid with a …
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Study of the Thermal Method for Removing Fluorine from Products …
products of sulfuric acid leaching of beryllium ores at UMP JSC A.N. Borsuk a, G .N. Amelina b, I.I. Zherin b, E.O. Grigoryeva b, S.I. Ivl ev b a UMP JSC, 102 Abay Ave, Ust - Kamenogorsk ...
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IMPROVEMENTS IN OR RELATING TO EXTRACTION OF BERYLLIUM …
A process for extracting Be from beryl ore is outlined in which only a minor proportion of the Al in the ore is also extracted. The process comprises leaching the ore with an aqueous solution containing 0.2 to 5 N H/sub 2/SO/sub 4/ and 0.1 to 0.5 N HF at a temperature between 200 deg C and the critical temperature of the leaching solution ...
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Study on removal of beryllium from uranium …
Study on removal of beryllium from uranium beryllium ore wastewater by acid leaching activated carbon and its mechanism. September 2023. Journal of …
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Comprehensive utilization of complex rubidium ore …
Currently, the process of extracting rubidium from ores has attracted a great deal of attention due to the increasing application of rubidium in high-technology field. A novel process for the comprehensive utilization of rubidium ore resources is proposed in this paper. The process consists mainly of mineral dissociation, selective leaching, and …
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REFINING LOW-GRADE BERYLLIUM ORES BY TREATMENT …
We claim 1. Process for the recovery of beryllium from a substantially dry beryllium-containing ore which comprises reacting said ore directly with anhydrous sulfur xide at a temperature below 350° C. to form beryllium sulfate, leaching the reacted ore with an aqueous medium to dissolve the beryllium sulfate, separating the resulting solution from …
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SOLVENT EXTRACTION, RECOVERY, AND …
SOLVENT EXTRACTION, RECOVERY, AND PURIFICATION OF BERYLLIUM FROM ORES. Full Record. Related Research. Abstract. An investigation was made of the …
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Processing of lithium ores: Industrial technologies and case …
The technology of autoclave leaching of Ukrainian petalite ores being discussed as well. Presumably, autoclave-based methods are optimal for poor raw material processing with high efficiency. ... which is obtaining simultaneously in form of flotation tailings during the complex processing of fluorite‑beryllium ores of the Voznesenskoye ...
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