Study on removal of beryllium from uranium beryllium ore …
With the exploitation of uranium–beryllium ore, the waste and wastewater produced have received extensive attention. There are a lot of toxic and harmful substances in uranium–beryllium ore, among which beryllium has not been widely concerned. This paper used hydrochloric acid (HCl) pretreatment activated carbon (H-AC) to study the removal of …
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Comparative Life Cycle Assessment of Lithium Mining, …
After this operation, a series of roasting, leaching, precipitation, filtration, and purification steps are utilised to produce lithium carbonate battery grade [16-20]. Lithium-clay deposits are not producing lithium-compound products currently; however, there are several projects in the USA, Mexico, Peru, and Serbia [21].
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Physics and chemistry of beryllium
A large deposit of beryllium occurs at Spor Mountain, Utah in water-laid tuff.This mineralization is believed to have oc-curred through the ascent of fluorine-rich hydrothermal solutions. Much of the beryllium is present as bertrandite.The presence of beryllium was originally discovered using a berylometer, 8an instrument utilizing the Be. 9 (n ...
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Uranium processing
Uranium processing - Leaching, Extraction, Purification: Roasted uranium ores are leached of their uranium values by both acidic and alkaline aqueous solutions. For the successful operation of all leaching systems, uranium must either be initially present in the more stable hexavalent state or be oxidized to that state in the leaching process. Acid leaching is …
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Extraction of lithium from primary and secondary sources by …
The rising demand for lithium for various applications thus calls for prospecting and processing all viable resources. Lithium extraction from ores/minerals utilizes roasting followed by leaching, while its extraction from brines includes evaporation, precipitation, adsorption and ion exchange (Garrett, 2004).Lithium can be extracted from LIBs by leaching followed by …
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Beryllium adsorption from beryllium mining wastewater with …
Beryllium has many excellent properties and is widely used in alloys, aviation and space optics. At present, the occurrence forms of beryllium are hydroxysiloberyllium, …
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Co-precipitation purification new process for leaching …
Beryllium is usually extracted from mineral ores at present, and the minerals are mainly beryl, bertrandite or phenakite, etc. With the increasing depletion of beryllium mineral resources ...
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RECOVERY OF BERYLLIUM FROM A LOW-GRADE ORE BY …
There has been a recent interest in studying the action of anhydrous sulfur xide on ores to convert the metal values into a water-soluble form as a substitute for leaching by sulfuric acid. J ...
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Beryllium Oxide: A High-Performance Ceramic for Modern …
Preparation of Beryllium Oxide Calcination of Beryllium Hydroxide. One of the most widely used methods is the calcination of beryllium hydroxide at high temperatures (1000-1300°C). Beryllium hydroxide is first obtained by leaching beryllium ores or concentrates, followed by precipitation.
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Extraction
These ores are eco nomically competitive with beryl because they are accessible by open-pit mining, and the beryllium can be extracted by acid leaching. 2.2. Minor Minerals The installed extraction methods are not readily applicable to other types of ore. The rate of growth of beryllium usage has been rather steady
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ACID LEACHING OF BERYLLIUM ORE FROM SPOR …
About 95% of the beryllium was dissolved from most ore samples by agitation leaching with 600 lb of H/sub 2/SO/sub 4/ per ton of ore for 24 hours at 65 deg C and 35% solids.
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Experimental investigation on the influence of surfactant to …
In-situ leaching of uranium has become one of the major ways to realize the green acquisition of uranium resources in low-grade sandstone-type uranium deposits in the world due to its environmental friendliness and high cost performance [1, 2].In-situ leaching of uranium is a mining-dressing-metallurgy consolidated method which extract uranium metal and its …
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Fluorine distribution during thermal treatment of sulfuric …
Fluorine distribution during thermal treatment of sulfuric acid leaching products of complex beryllium raw materials at JSC UMP. A N Borsuk 1, I I Zherin 2, G N Amelina 2 and I Pivovarov 2. Published under licence by IOP Publishing Ltd
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Beryllium Metallurgy
Beryllium in the ore is converted into water-soluble sodium fluoroberylate, while aluminum, iron, and silicon remain in the state of an oxide. The sodium beryllium solution can be obtained by adding sodium hydroxide into the filtrate after grinding, leaching, and filtering.
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The Production of Beryllium
The main source of beryllium in commercial deposits is beryl, Be3Al2[Si6O18]. Beryl is generally found in pegmatites or micaceous greisens and is therefore mainly associated with feldspar, …
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Effective Removal of Beryllium from Industrial Wastewater …
A modified material of activated carbon by alkali leaching pretreatment (NaOH-AC) for adsorbing beryllium was reported. The batch test results showed that the maximum adsorption capacity of beryllium by NaOH-AC was 40.59 mg/g. The pH value of the treated solution was 6, which met the discharge standards of industrial wastewater. The results of the …
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(PDF) A SUGGESTED PROCEDURE FOR CHEMICAL …
This study involves the leaching of the beryl ore with sulphuric acid (H2SO4) solution for predicting optimal beryllium extraction conditions with the aim of assessing the importance of...
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Effect of temperature on beryl ore dissolution at …
This study involves the leaching of the beryl ore with sulphuric acid (H2SO4) solution for predicting optimal beryllium extraction conditions with the aim of assessing the importance of...
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Method for leaching beryllium from andalusite
The invention relates to a method for leaching beryllium from andalusite, belongs to the field of smelting of beryllium ores, and solves the problems of low beryllium recovery rate, large amount of dangerous waste and high-temperature treatment in the prior art. The invention discloses a method for leaching beryllium from andalusite, which comprises the following …
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Solvent extraction and recovery of beryllium from …
Several processes have been reported in which beryllium solution is leached from beryllium ore and beryllium hydroxide is precipitated. For the sulphate process, either molten …
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Beryllium adsorption from beryllium mining wastewater …
Beryllium has many excellent properties and is widely used in alloys, aviation and space optics. At present, the occurrence forms of beryllium are hydroxysiloberyllium, greenstone (3BeO·Al 2 O 3 ·6SiO 2), beryllianite (2BeO·SiO 2), bertrandite Be 4 Si 2 O 7 (OH) 2, beryl (BeO·Al 2 O 3) and a few other types.In addition, there are some associated ores such as …
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Fluorination of beryllium concentrates with ammonium fluorides …
New method for processing of beryllium ores to beryllium oxide was suggested and studied. The method is based on decomposition of bertrandite or phenacite with ammonium chloride, with the subsequent leaching of ammonium tetrafluoroberyllate and precipitation from a beryllium hydroxide solution. The thermodynamic characteristics were calculated and a …
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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]. Until the 1950s, beryl (Be 3 Al 2 Si 6 O 18) was the primary ore for beryllium refining. Beryl has few impurities and has been used ...
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Sources of Beryllium Metal and Extraction Locations
Only three countries, the United States, China and Kazakhstan, currently process commercially viable quantities of beryllium ores and concentrates into beryllium products. Today, the extraction of beryllium begins with the mining of raw materials (bertrandite ore and/or beryl ore). Beryl ore is melted in industrial furnaces, solidified and ...
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Fluorine distribution during thermal treatment of sulfuric …
Study of the Thermal Method for Removing Fluorine from Products of Sulfuric Acid Leaching of Beryllium Ores at UMP JSC ... Studies of aqueous solutions containing fluoride and beryllium ion in ...
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Refining Beryllium Ore
Refining Beryllium Ore. With only 0.65 % beryllium oxide (or 4.5 lbs. per ton of beryllium) in the final ore, a process had to be engineered to economically concentrate the beryllium for final processing. The properties that make beryllium useful also make it difficult to extract from its ores.
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The Production of Beryllium
The main source of beryllium in commercial deposits is beryl, Be3Al2[Si6O18]. ... Selective extraction of uranium from uranium–beryllium ore by acid leaching Article 03 August 2019. Elemental Analysis of Beryllium Samples Using a Microzond-EGP-10 Unit ... Flotatsiya Rud Redkikh Metallov i Olova, Flotation of Ores of Rare Metals and Tin, Pt ...
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Environmental risk of ion-absorbed rare earth ores
leaching agent, while the most of exchangeable Pb owed out along with leaching agent, and a small amount of leached Pb in the ore soil was converted to iron and manganese oxide-bound Pb and enriched in the direction of migration of the leaching solution, and when the environment (e.g., pH and Eh) changed, this part of Pb may be re-activated.
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EXTRACTION OF BERYLLIUM FROM ORES
The extraction and the recovery of beryllium substantially devoid of zinc and other impurities from low and medium grade acid-leachable berllium bearing ores, e.g., bertrandite, is accomplished by acid leaching at a pH below about 2 but above about 1.2, preferably between 1.3 and 1.5, and advantageously with the aid of a soluble fluoride additive to recover the beryllium in solution …
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Nuclear fuel cycle' Extractingg uranium from its ores
The most common alkaline leaching solutions are mixtures of sodium carbonate and sodium bicarbonate. To achieve reasonable leaching rates high temperatures are required, and pressurized leaching systems are used in nearly all alkaline leaching plants so that leaching temperatures greater than 100°C can be achieved. Uranium is recovered from ...
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