T
Theopisti Lymperopoulou
Researcher at National Technical University of Athens
Publications - 19
Citations - 274
Theopisti Lymperopoulou is an academic researcher from National Technical University of Athens. The author has contributed to research in topics: Scandium & Bayer process. The author has an hindex of 6, co-authored 15 publications receiving 165 citations.
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Journal ArticleDOI
Evolution of phenolic compounds and metal content of wine during alcoholic fermentation and storage.
Andreas Bimpilas,Dimitrios Tsimogiannis,Kalliopi P. Balta-Brouma,Theopisti Lymperopoulou,Vassiliki Oreopoulou +4 more
TL;DR: During 1 year of storage monomeric anthocyanins declined almost tenfold, probably due to polymerization reactions and copigmentation, while the concentration of total phenols and all metals remained practically constant.
Journal ArticleDOI
Influence of local and regional sources on the observed spatial and temporal variability of size resolved atmospheric aerosol mass concentrations and water-soluble species in the Athens metropolitan area
Konstantinos Eleftheriadis,Klaus Ochsenkühn,Theopisti Lymperopoulou,Angeliki Karanasiou,Panayiotis Razos,Maria Ochsenkühn-Petropoulou +5 more
TL;DR: In this article, the spatial and temporal variability for the particulate matter (PM) concentration mass and water-soluble ionic species concentrations for the investigated sites were studied, and the average size distributions of the mass and individual ions at the suburban site (NCSR Demokritos) showed a bimodal size distribution.
Journal ArticleDOI
Optimizing Conditions for Scandium Extraction from Bauxite Residue Using Taguchi Methodology
Theopisti Lymperopoulou,Paraskevas Georgiou,Lamprini-Areti Tsakanika,Konstantinos Hatzilyberis,Maria Ochsenkuehn-Petropoulou +4 more
TL;DR: In this article, the optimization of scandium extraction from bauxite residue with sulfuric acid is investigated using Taguchi methodology, where acid molarity, leaching time, solid/liquid ratio, and reaction temperature were selected as control parameters for the selective scandiam recovery.
Posted ContentDOI
Efficiency of Sulfuric Acid on Selective Scandium Leachability from Bauxite Residue
Maria Ochsenkuehn-Petropoulou,Lamprini-Areti Tsakanika,Theopisti Lymperopoulou,Klaus-Michael Ochsenkuehn,Konstantinos Hatzilyberis,Paraskevas Georgiou,Chrysanthos Stergiopoulos,Olga Serifi,Fotis Tsopelas +8 more
TL;DR: In this article, an optimized leaching condition set for scandium recovery, using the most advantageous option of sulfuric acid, was investigated, and a leaching scale-up process to be established in the premises of Mytilineos S.A. (formerly Aluminium of Greece, the largest Greek alumina and aluminum producer), taking into account the feed requirements of a subsequent advanced ion exchanged procedure.
Journal ArticleDOI
Process Design Aspects for Scandium-Selective Leaching of Bauxite Residue with Sulfuric Acid
Konstantinos Hatzilyberis,Theopisti Lymperopoulou,Lamprini-Areti Tsakanika,Klaus-Michael Ochsenkühn,Paraskevas Georgiou,Nikolaos Defteraios,Fotios Tsopelas,Maria Ochsenkühn-Petropoulou +7 more
TL;DR: In this paper, the authors investigated a Scandium (Sc)-selective leaching process of Bauxite Residue (BR), where a set of process design aspects have been investigated.