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18-06-2020· Development and modification of Scandium production process. Researcher: M.Sc. Rita Kallio Supervisors: Professors Timo Fabritius (Metallurgy), Saija Luukkanen (Mineral Processing) and Ulla Lassi (Hydrometallurgy) Description of the project: Scandium …
26-10-2020· Abstract Studies have been carried out to separate scandium and thorium from nitric acid solutions using two extraction systems 7.5% Cyanex 923 + 7.5% TBP and 40% TBP in kerosene for processing the primary scandium concentrate obtained from the circulating solutions of underground uranium leaching at JSC "Dalur." Comparison of the values of the separation coefficients showed the ...
Processing scandium-containing solutions was carried out based on known and proposed method. In experiments 1.1 and 1.2. conducted a comparison of the performance of the process determined sorption load of anion exchange resin to titanium by sorption from solutions of H 2 SO 4 with a concentration of 150-500 g/DM 3, 100 mEq.
Known [1, 2] the method for concentrating scandium from waste processing wolframite concentrates slag dump of the process of obtaining ferrosulfate from wolframite is containing a series, wt. SiO 2 46,14; TiO 2 1,32; Al 2 O 3 4,65; Fe 2 O 3 1,64; FeO 3,28; CaO 19,52; MgO 0,79; P 2 O 5 0,07; MnO 21,06; SO 3 1,5; WO 3 0,27; Sc 2 O 3 0,04, crushed (80%) to 200 mesh. then decompose sulfuric ...
Studies have been carried out to separate scandium and thorium from nitric acid solutions using two extraction systems 7.5% Cyanex 923 + 7.5% TBP and 40% TBP in kerosene for processing the primary scandium concentrate obtained from the circulating solutions of underground uranium leaching at JSC "Dalur." Comparison of the values of the separation coefficients showed the fundamental ...
Processing of ore at Sconi project. The processing plant at Sconi nickel-cobalt-scandanium project is a 2Mtpa plant, which will use hydrometallurgical methods for processing the nickel, cobalt, and scandium. It will produce battery-grade nickel sulphate and cobalt sulphate in four stages.
Scandium can also be extracted from tantalum residues, tungsten processing wastes, tin slags and a variety of other such industrial waste streams, and it is sometimes recovered from rare earth ores, particularly the rare earth oxide deposits of Bayan Obo, China.
For the processing of the resulting scandium concentrate on a basis of scandium hydroxide (Sc(OH) 3), MEAB's mixer-settler mini-pilot plant in Aachen was used. The operation includes the following main steps: dissolution, hydrolysis, organic solvent conditioning, scandium extraction, scrubbing of impurities and scandium stripping.
01-06-2011· Pyrometallurgical processes are suitable for recovery of scandium from its ores with high contents of scandium. However, the energy consumption is intensive. Scandium is often enriched in slags, residues, tailings and waste liquors, and primarily produced as a by-product during processing …
27-10-2007· We simulated the counter- the background of the high content of calcium chloride current process of three-step extraction at O : A = 1 : 4. and in the presence of ions of polyvalence metals, it is 3+ From the main portion of Fe, scandium was separated impossible to separate scandium in the recommended by selective extraction at O : A = 2 : 1 with a 1.2 N solu- extraction systems.
25-05-2021· In the frame of "precision medicine", the scandium radionuclides have recently received considerable interest, providing personalised adjustment of radiation characteristics to optimize the efficiency of medical care or therapeutic benefit for particular groups of patients. Radionuclides of scandium, namely scandium-43 and scandium-44 (43/44Sc) as positron emitters and scandium-47 …
Method of processing scandium-containing solutions Method of enriching rare-metal ores // 2182521. FIELD: hydrometallurgy. SUBSTANCE: invention relates to... A method of processing eudialyte concentrate // 2183225. The method for extracting scandium from solutions for industrial raw materials ...
18-06-2020· Development and modification of Scandium production process. Researcher: M.Sc. Rita Kallio Supervisors: Professors Timo Fabritius (Metallurgy), Saija Luukkanen (Mineral Processing) and Ulla Lassi (Hydrometallurgy) Description of the project: Scandium provides technological advantages, particularly in solid oxide fuel cells and aluminum alloys, in respect of transportation …
Download Citation | On May 1, 2020, E. Yu. Meshkov and others published Separation of Scandium and Thorium in the Processing of Scandium Rough Concentrate Obtained from Circulating Solutions of In ...
Scandium applications and technologies of its recovery from waste of titanium, vanadium and alumina processes are considered in brief. It is pointed out that currently in Russia there are actually unlimited resources of scandium and efficient technology of its reco
Abstract Studies have been carried out to separate scandium and thorium from nitric acid solutions using two extraction systems 7.5% Cyanex 923 + 7.5% TBP and 40% TBP in kerosene for processing the primary scandium concentrate obtained from the circulating solutions of underground uranium leaching at JSC "Dalur." Comparison of the values of the separation coefficients showed the ...
Production of Scandium and Al-Sc Alloy by Metallothermic Reduction Masanori Harata1, Takao Nakamura2, Hiromasa Yakushiji3,, hydrometallurgical process that can recover nickel even from a low-grade laterite ore, and it is reported that scandium can also be efficiently recovered using this nickel smelting process When a hydrometallurgical process for extracting nickel,
Scandium oxide is one of the more important products in scandium products. Its physical and chemical properties are similar to those of rare earth oxides, so the production methods are also very similar. Under certain external conditions, Sc2O3 can produce products of metal scandium salts and various scandium alloys.
18-06-2020· In the Kiviniemi deposit, scandium occurs in pyroxene and amphibole, which respond well to magnetic preconcentration (Figure 1). In addition to the conventional preconcentration methods, the proposed processing scheme investigated in this research project includes high-temperature upgrading of the concentrate to produce Sc-containing amorphous phase along with crude iron.
FIELD: chemistry. SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid leaching of scandium, wherein at the first step, leaching is carried out with recycled solution after ...
14-08-2020· Development and modification of Scandium production process. Researcher: M.Sc. Rita Kallio Supervisors: Professors Timo Fabritius (Metallurgy), Saija Luukkanen (Mineral Processing) and Ulla Lassi (Hydrometallurgy) Description of the project: Scandium provides technological advantages, particularly in solid oxide fuel cells and aluminum alloys, in respect of transportation applications due …
June 9, 2021 — Imperial Mining Group Ltd. ("Imperial") (TSX VENTURE: IPG) (OTCQB: IMPNF) is pleased to announce that it has developed an innovative process for extraction of scandium (Sc) and rare earth elements (REE) from its Crater Lake scandium mineralization as part of its current Phase 3 Hydrometallurgical Development Program.. Results from this work show very high recovery of both ...
Scandium has no biological role. Only trace amounts reach the food chain, so the average person's daily intake is less than 0.1 microgram. Scadium is not toxic, although there have been suggestions that some of its compounds might be cancerogenic.