Non-dispersive selective extraction of germanium from fly,
Non-dispersive selective extraction of germanium from fly ash leachates using membrane-based processes Hossein Kamran Haghighi a, Mehdi Irannajad , Agustin Fortunyb, and Ana Maria Sastrec aDepartment of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran; bDepartment of Chemical Engineering, Universitat Politècnica degermanium extraction from the coal fly ash by Arman Kenesbek,06-12-2015· The first stage of the extraction of germanium - getting rich germanium concentrate (sometimes technical oxide or germanium tetrachloride). The concentrates obtained by various methods. Relevant shops usually have on metallurgical, coke, and so on Plants. The second stage - the production of high purity germanium. This technology is uniform.Non-dispersive selective extraction of germanium from fly,,27-02-2019· Non-dispersive selective extraction of germanium from fly ash leachates using membrane-based processes Hossein Kamran Haghighi Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran , Mehdi Irannajad Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Irangermanium fly extraction - fkw-logistic,Coal fly ash as a resource for rare earth elements. Jan 24, 2015· Arroyo F, Font O, FernandezPereira C, Querol X, Chimenos JP, Zeegers H (2009) Germanium and gallium extraction from gasification fly ash: optimisation for upscaling a recovery process.Germanium and Gallium Extraction from Gasification Fly Ash,,results revealed that relatively high Ge extraction yields (up to 83 % after 2 h leaching period) may be achieved using a weak acid solution. Gallium yielded upRecovery of germanium from real fly ash leachates by ion,,Several processes have been developed to recover and separate germanium from impurities such as precipitation [6], flotation [7], ion-exchange [8],
Recovery of germanium from leach solutions of fly ash,
01-01-2018· In each extraction system, germanium was only extracted from a solution containing nickel, cadmium, cobalt, and zinc, which had a composition similar to gasification coal fly ash aqueous leach solutions.Recovery of germanium from real fly ash leachates by ion,,01-01-2011· Germanium recovery from real fly ash (FA) leachates was studied using ion-exchange procedures. The procedure was based on germanium complexation with catechol (CAT) in an aqueous solution followed by the retention of the Ge–CAT complex onto a conventional strongly basic anionic resin (IRA-900).Germanium: Current and Novel Recovery Processes | IntechOpen,03-10-2018· Germanium (Ge) is considered a critical element due to its many industrial applications; Ge is a metalloid used in solar cells, fiber optics, metallurgy, chemotherapy, and polymerization catalysis. The main sources of Ge are sulfides ores of Zn, Pb, and Cu, coal deposits, as well as by-products and residues from the processing of these ores and coalsHydrometallurgical Recovery of Germanium from Coal,,This article is concerned with a simple hydrometallurgical method for the selective recovery of germanium from fly ash (FA) generated in an integrated gasification with combined cycle (IGCC) process. The method is based on the leaching of FA with water and a subsequent concentration and selective separation of germanium by a solvent method.germanium fly extraction - fkw-logistic,Coal fly ash as a resource for rare earth elements. Jan 24, 2015· Arroyo F, Font O, FernandezPereira C, Querol X, Chimenos JP, Zeegers H (2009) Germanium and gallium extraction from gasification fly ash: optimisation for upscaling a recovery process.germanium extraction from the coal fly ash by Arman Kenesbek,06-12-2015· Monday, December 7, 2015 Germanium in the coal fly ash In recent years its practiced a new way of producing germanium Methods of Germanium extraction Germanium is a semiconductor, hard, and crystalline element. Germanium is found in the earth's crust in an abundance of 1-7 ppm
Non-dispersive selective extraction of germanium from fly,
ABSTRACT Non-dispersive selective extraction of Ge(IV) tartrates was carried out from simulated fly ash solutions containing heavy metals through supported liquid membranes (SLM). The optimum transport was obtained using a PTFE membrane containing Alamine 336 5%v/v in the condition of tartaric acid 2.76 mmol/L and HCl 1 mol/L in feed and strip phases, respectively.Recovery of germanium from real fly ash leachates by ion,,Germanium recovery from real fly ash (FA) leachates was studied using ion-exchange procedures. The procedure was based on germanium complexation with catechol (CAT) in an aqueous solution followed,Extraction of germanium and gallium from coal fly ash and,,The item Extraction of germanium and gallium from coal fly ash and phosphorus furnace flue dust, R.F. Waters and H. Kenworthy represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in University of Missouri Libraries.Hydrometallurgical Recovery of Germanium from Coal,,The solvent extraction (SX) method for the recovery of germanium from fly ash is based on the germanium-1, 2-dihydroxybenzene (catechol, CAT) (C6O2H6) chelate and the subsequent extraction of the,Recovery of germanium and indium from leaching solution of,,01-06-2021· Recovery of germanium from leach solutions of fly ash using solvent extraction with various extractants Hydrometallurgy , 175 ( 2018 ) , pp. 164 - 169 , 10.1016/j.hydromet.2017.11.006 Google ScholarTHE extraction and refining of germanium and gallium,In the 1940s the solvent extraction of gallium was firstly introduced to commercial operations during the recovery of germanium and gallium from
Minerals 2015 OPEN ACCESS minerals
The solvent extraction (SX) method for the recovery of germanium from fly ash is based on the germanium-1, 2-dihydroxybenzene (catechol, CAT) (CHydrometallurgical Recovery of Germanium from Coal,,This article is concerned with a simple hydrometallurgical method for the selective recovery of germanium from fly ash (FA) generated in an integrated gasification with combined cycle (IGCC) process. The method is based on the leaching of FA with water and a subsequent concentration and selective separation of germanium by a solvent method.Non-dispersive selective extraction of germanium from fly,,Non-dispersive selective extraction of germanium from fly ash leachates using membrane-based processes Hossein Kamran Haghighi a, Mehdi Irannajad , Agustin Fortunyb, and Ana Maria Sastrec aDepartment of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran; bDepartment of Chemical Engineering, Universitat Politècnica degermanium extraction from the coal fly ash by Arman Kenesbek,06-12-2015· Monday, December 7, 2015 Germanium in the coal fly ash In recent years its practiced a new way of producing germanium Methods of Germanium extraction Germanium is a semiconductor, hard, and crystalline element. Germanium is found in the earth's crust in an abundance of 1-7 ppmExtraction of germanium and gallium from coal fly ash and,,The item Extraction of germanium and gallium from coal fly ash and phosphorus furnace flue dust, R.F. Waters and H. Kenworthy represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in University of Missouri Libraries.Recovery of germanium and indium from leaching solution of,,01-06-2021· Recovery of germanium from leach solutions of fly ash using solvent extraction with various extractants Hydrometallurgy , 175 ( 2018 ) , pp. 164 - 169 , 10.1016/j.hydromet.2017.11.006 Google Scholar
THE extraction and refining of germanium and gallium
In the 1940s the solvent extraction of gallium was firstly introduced to commercial operations during the recovery of germanium and gallium fromHydrometallurgical Recovery of Germanium from Coal,,This article is concerned with a simple hydrometallurgical method for the selective recovery of germanium from fly ash (FA) generated in an integrated gasification with combined cycle (IGCC) process. The method is based on the leaching of FA with water and a subsequent concentration and selective separation of germanium by a solvent method.Research on the Behavior of Germanium in the Leaching,,19-08-2018· Torralvo FA, Fernández-Pereira C (2011) Recovery of germanium from real fly ash leachates by ion-exchange extraction. Miner Eng 24(1):35–41 CrossRef Google Scholar 5.Industrial Equipment Design for the Recovery of Germanium,,Germanium recovery from coal fly ash (FA) leachates by solvent extraction procedures was studied. Tests at pilot plant scale were performed in order to design industrial equipment. Based on the experimental results, mass balances and McCabe-Thiele diagrams were applied to determine the number of steps of the SX stage. Different arrangements have been studied andGermanium separation and purification by leaching and,,30-09-2016· In this research work, extraction and purification of germanium from zinc leach residues (ZLR) were investigated. The results of ICP, XRF, and atomic adsorption spectroscopy (AAS) tests show that contents of germanium, iron, lead, and zinc within the leaching residue were 105×10 −6, 3.53%, 10.35%, and 8.8%, respectively.XRD results indicate that the mainRecovery of a critical metal from electronic wastes,,15-09-2021· Germanium extraction reached equilibrium at the very initial times (<5 min) at 300 RPM, therefore increasing time didn't have any effect on the reaction. At stirring speeds of 450 and 600 RPM germanium extraction reached to about 31 and 37%, respectively, in just 5 min and remained constant for the next 60 min of the leaching process (Phase 2).
