Selaus tekijän mukaan kokoelmassa "Sainio, Tuomo"Tieteelliset julkaisut
Aineistot 21-33 / 33
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Polyacrylonitrile-encapsulated amorphous zirconium phosphate composite adsorbent for Co, Nd and Dy separations
(Elsevier, 2018)Recycled Nd and Dy from the end-of-life NdFeB permanent magnet is an important supplement for the increasing demand of rare-earth elements. Thus, there is an urgent need to develop an environmentally friendly recycling ... -
Recovering rare earth elements from phosphogypsum using a resin-in-leach process: Selection of resin, leaching agent, and eluent
(Elsevier, 10.08.2019)Phosphogypsum (PG) is an attractive secondary raw material for rare earth elements (REEs) because it is abundant and contains significant amounts of REEs. Herein, the resin-in-leach (RIL) process for REE recovery from PG ... -
Recovery of lithium from leach solutions of battery waste using direct solvent extraction with TBP and FeCl3
(Elsevier, 22.03.2021)Although societal interest in lithium has grown due to its increased demand for manufacturing of lithium ion batteries (LIBs), recent research studies about LIB recycling with solvent extraction did not focus on Li recovery ... -
Recovery of metal oxoanions from basic solutions using cooperative sorption – Separation of Na2MoO4 and NaOH
(Elsevier, 01.06.2018)Chromatographic separation of molybdate oxoanions and NaOH was studied using cooperative sorption as a method to recover both Mo and the base as concentrated solutions. Commercial non-ionic microporous adsorbents composed ... -
Recovery of rare earth elements from phosphogypsum waste in resin-in-leach process by eluting with biodegradable complexing agents
(Elsevier, 02.02.2021)Phosphogypsum waste is a potential, secondary rare earth element (REE) source that is available in very large volumes. Extraction and purification of REE from this complex waste was studied using resin-in-leach (RIL) ... -
Recovery of valuable metals from argon oxygen decarburization (AOD) dusts by leaching, filtration and solvent extraction
(Elsevier, 2013)For each ton of steel produced from a typical steelmaking plant, up to several tens of kilograms of dust, containing significant amounts of valuable and/or environmentally harmful metals, are also produced. A hydrometallurgical ... -
Removal and recovery of arsenic from concentrated sulfuric acid by solvent extraction
(Elsevier, 13.05.2019)Arsenic-contaminated sulfuric acid solutions are produced in large quantities as by-product during pyrometallurgical processing of sulfide minerals. Options for re-using such acid solutions are increased if the arsenic is ... -
Removal of calcium and magnesium from lithium brine concentrate via continuous counter-current solvent extraction
(Elsevier, 2016)In this research project, a process for purifying Li brine concentrate with a typical composition of Li 30 g/L, Ca 1.36 g/L, Mg 0.049 g/L via solvent extraction was studied. The goal was to remove Ca to below 20 mg/L and ... -
Removal of iron, aluminium, manganese and copper from leach solutions of lithium-ion battery waste using ion exchange
(Elsevier, 20.04.2021)The shift to electric mobility necessitates recycling the metals from lithium ion battery waste. Ion exchange was studied for use in the removal of impurities from synthetic lithium ion battery waste leachate in laboratory-scale ... -
Solvent Extraction for Separation of 99.9% Pure Cobalt and Recovery of Li, Ni, Fe, Cu, Al from Spent LIBs
(MDPI, 20.06.2022)In this work, hydrometallurgical recycling of metals from high-cobalt-content spent lithium-ion batteries (LIBs) from laptops was studied using precipitation and solvent extraction as alternative purification processes. ... -
Solvent extraction fractionation of Li-ion battery leachate containing Li, Ni, and Co
(Elsevier, 2017)In this research, the separation of Li, Ni, and Co by solvent extraction was studied from synthetic Li-ion battery waste leachate. The purpose was to propose a process for producing all the metals with over 99.5% purities, ... -
Synthesis of hydrometallurgical processes for valorization of secondary raw materials using ant colony optimization and key performance indicators
(Elsevier, 16.02.2015)An algorithm-based method for synthesis of hydrometallurgical processes using limited amounts of experimental data is presented. The method enables simultaneous selection and sequencing of unit operations and optimization ... -
Two alternative process routes for recovering pure indium from waste liquid crystal display panels
(Elsevier, 25.09.2019)Recovering indium from liquid crystal display (LCD) screen waste is important from a sustainability point of view for several reasons: the environmentally hazardous metals are not landfilled, the recovery process involves ...
