the recovery and separation of scandium

  • Ultrafine Mill Ultrafine Mill also is named Ultrafine Grinding mill, Micro Powder Mill, Ultrafine Mill is suitable for grinding calcium carbonate into fine powder.....

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  • Liquid extraction procedure for the recovery of 1989-3-10 · This patent describes a method for recovering scandium. It comprises: dissolving scandium from a solid comprising iron, manganese, and scandium to form an aqueous solution comprising an amount of the scandium, and the iron. The amount of the iron in

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  • Recovery of scandium from sulfation-roasted leachates of 2017-3-5 · Recovery of trace ele-ments focuses mainly on the rare earths and more specifically on scandium, because of its high market value [18–20]. Depending on the bauxite source, bauxite residue contains on average 60–120 ppm of scandium, making it a viable source for scandium production [12,21]. Selective separation of scandium from the

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  • Recovery of scandium and uranium (Patent) | OSTI.GOV1989-10-19 · @article{osti_5713460, title = {Recovery of scandium and uranium}, author = {Rourke, W.J.}, abstractNote = {This patent describes a process. It comprises: dissolving a material containing metal values comprising uranium, scandium and iron and optionally other metals in aqueous mineral acid to form an aqueous solution containing the metal values, adjusting the pH of the the aqueous solution

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  • Separation and recovery of scandium and titanium Separation and recovery of scandium and titanium from spent sulfuric acid solution from the titanium dioxide production process. Author links open overlay panel Yuhua Li a b Qinggang Li a b Guiqing Zhang a b Li Zeng a b Zuoying Cao a b Wenjuan Guan a b Liupei Wang a b. Show more.

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  • Recovery of Scandium from Chloride Media Using the 2015-7-28 · separation of scandium from the ores are difficult therefore, scandium is expensive and its appliion in industry has been limited (Xu et al., 2013). Pyrometallurgy is a suitable technology for recovery of scandium from its ore containing high scandium content. However, the high energy consumption and

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  • Status of Scandium Recovery and Extraction--《Chinese and makes its separation and extraction process difficult and complex.The types of the raw materials which could be used to recycle scandium were concluded and the

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  • Separation and recovery of critical metal ions using ionic 2017-8-26 · Separation and recovery of critical metal ions using ionic liquids recovery of metal ions have adverse environmental impact. Alternatives to solvent extraction have been explored and achievements in the separation of REE, scandium, niobium

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  • Pilot-Plant Investigation of the Leaching Process for 2018-8-20 · A pilot-plant process has been developed based on an innovative laboratory-scale method for the recovery of scandium that exists in economically interesting concentrations in red mud, the main byproduct of alumina production. This method includes acid leaching of the red mud pulp, ion-exchange separation of scandium and lanthanides from the co-leached main elements such as iron, and

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  • Separation and purifiion of scandium by solvent Deepika Lakshmi Ramasamy, Ville Puhakka, Eveliina Repo and Mika Sillanpää, Selective separation of scandium from iron, aluminium and gold rich wastewater using various amino and non-amino functionalized silica gels – A comparative study, Journal of Cleaner Production, 170, (890), (2018).

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  • Separation and purifiion of scandium by solvent Separation and purifiion of scandium by solvent extraction and related technologies: A review Article in Journal of Chemical Technology & Biotechnology 86(10):1237 - 1246 · October 2011 with

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  • Metallurgical processes for scandium recovery from Metallurgical processes for scandium recovery from various resources are reviewed. Scandium is mainly recovered as by-product from residues, tailings and waste liquors in the production of other metals such as rare earths, uranium, titanium, tungsten, aluminium, nickel, tantalum and niobium.

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  • US9481638B2 - Scandium extraction method - Google Provided is a method for selectively extracting and inexpensively recovering scandium from an acidic solution containing calcium, magnesium, and scandium. The scandium extraction method according to the present invention involves subjecting an acidic solution containing calcium, magnesium, and scandium to solvent extraction using an extraction agent consisting of an amide derivative

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  • Recovery of scandium from leachates of Greek bauxite 2015-9-17 · In this work, we investigated the recovery of scandium from real leachates of Greek bauxite residue. In the separation of scandium from the other elements, the biggest challenge arose from the chemical similarities between scandium(III) and iron(III). This hampers high selectivity for scandium, especially because iron, as one of the major

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  • Recovery of scandium from bauxite residue—red 2016-12-1 · Red mud is a slimy caustic residue generated from alumina production. Taking into account the relatively considerable content and availability of scandium, red mud can be viewed as an important and promising scandium resource rather than a solid waste. This paper is primarily to review the

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  • Liquid Extraction Procedure For The Recovery Of Liquid extraction procedure for the recovery of scandium (75) Inventors: William J The process effects a complete separation of the scandium from the base metals resulting in a scandium product of high purity. 7 Claims, Drawing Sheets, and Figures [00002] This is a continuation of co-pending appliion Ser. No. 041,815 filed on Apr. 23

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  • Selective recovery of vanadium and scandium by ion 2018-9-16 · analyzed. The appropriate recovery technology and the parame-ters were studied for the separation of vanadium, scandium, and other metal ions according to the properties of the hydrochloric acid leaching solution of red mud. Finally, a conceptual process flow sheet for vanadium and scandium recovery from red mud was proposed. 2. Experimental

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  • Metallurgical processes for scandium recovery from various 2017-2-13 · Metallurgical processes for scandium recovery from various resources - Hydrometallurgy 108 The separation of scandium from other rare earth elements is dif?cult due

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  • Separation and recovery of critical metal ions using ionic 2015-7-6 · Separation and recovery of critical metal ions using ionic liquids Terence Makanyire, Sergio Sanchez-Segado, Animesh Jha Institute for Materials Research Received:

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  • Separation and recovery of critical metal ions using Separation and purifiion of critical metal ions such as purifiion, enrichment, and separation of scandium from its resources, which are typically non rare-earth minerals, are almost always achieved by employing solvent extraction processes . Conventional solvent extraction processes for scandium recovery use a nuer of extractants

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  • US3013859A - Separation of scandium values from 1. a process of separating scandium values from trivalent iron values by contact of an aqueous nitric acid medium with a substantially water-immisicible alkyl phosphate medium, one of said media containing said scandium values and said iron values, consisting of adding magnesium nitrate to said aqueous medium in an amount to obtain a concentration of at least 2.5 lbs./gal., contacting said

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