Scandium-Catalyzed Electrochemical Synthesis of α‑Pyridinyl Tertiary Amino Acids and Esters
, 2023 α-Pyridyl tertiary amino acids have potential pharmaceutical applications because of their structural features. However, their synthesis is still highly limited. Herein, we report a straightforward approach for the electrochemical synthesis of tertiary α-
Jiacong Lin (17138501) +3 more
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Extraction of scandium from bauxite residue by high-pressure leaching in sulfuric acid solution
Heliyon, 2023 Rare earth elements, such as yttrium, scandium, neodymium, and praseodymium, have been reported to be associated with minerals in bauxite and transferred to the refining residue when bauxite is refined to alumina (Al2O3) by Bayer Process.
M.R. Kanekaputra, M.Z. Mubarok
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FLUORESCENCE ENHANCEMENT OF SCANDIUM COMPOUNDS WITH 2-NAPHTHOYLTRIFLUOROACETONE IN WATER SOLUTION [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 The fluorescence effect of the scandium compounds with 2-naphthoyltrifluoroacetone on solvent composition was studied. The earlier unknown increase in fluorescence quantum yield of scandium diketonate was observed under the change of solvent from ...
L. Y. Mironov
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Scandium-Promoted Direct Conversion of Dinitrogen into Hydrazine Derivatives via N–C Bond Formation
, 2019 Direct conversion of dinitrogen (N2) into organic compounds, not through ammonia (NH3), is of great significance both fundamentally and practically. Here we report a highly efficient scandium-mediated synthetic cycle affording hydrazine derivatives (RMeN–
Zhenfeng Xi (1438816) +3 more
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, 2016 Atomic symbol: Sc Atomic number: 21 Atomic weight: 44.95591 Isotopes and abundances: 45 Sc 100 % 1 Atm melting point: 1541 C 1 Atm boiling point: 2836 C Common valences: 3+ Ionic radii: 6-fold, 74.5 pm, 8-fold, 87 pm Pauling electronegativity: 1.36 First ionization energy: 633.1 kJ/mol Chondritic (CI) abundance: 5.81 ppm Silicate Earth abundance: 16.4 ...
Iain, Samson, Chassé, Mathieu
openaire +1 more source
Research Progress on Recovery of Scandium from Vanadium Titano- Magnetite in Panzhihua
Kuangchan zonghe liyong, 2022 Review on the occurrence state of scandium in Panzhihua vanadium titano- magnetite showed as Mg-Fe isomorphism, rich reserves and the recovery of considerable potential value.
Lufeng Wang, Yue'e Yan
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Solvent Extraction of Sc(III) by D2EHPA/TBP from the Leaching Solution of Vanadium Slag
Metals, 2020 The solvent extraction of scandium by the mixture of di-(2-ethylhexyl) phosphate (D2EHPA) and tri-n-butyl phosphate (TBP) has been investigated in the acidic leaching solution of vanadium slag.
Xuejiao Cao +3 more
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Recovery of Scandium from Sulfuric Acid Aqueous Solutions using Ion-Exchange Resin
Journal of MMIJ, 2022 Ion-exchange process with chelating resins was investigated for recovery scandium from sulfuric acid aqueous solutions. An iminodiacetic acid type chelating resin, Diaion CR11, had a higher Sc adsorption selectivity than other elements.
Hiroto WATANABE +3 more
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Preparing Sc-Bearing Master Alloy Using Aluminum–Magnesium Thermoreduction Method
Metals, 2020 In this study, preparation of Al–Mg–Sc master alloy tests were carried out by Al–Mg thermoreduction method. Stirring by blowing argon and pressing with molten salt jar were adopted to reduce scandium segregation and upgrading scandium recovery of ...
Junhui Xiao +4 more
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Solvent extraction of scandium from chlorination system with EHPAEH [PDF]
MATEC Web of Conferences, 2019 The extraction of scandium from hydrochloric acid media with EHPAEH is investigated. Fe3+ in synthesized solution would reduce the purity of scandium, therefore, N235 is selected as extractant for separating Fe3+ and Sc3+.
Jiang Lan, Yang Hongliang, Sun Yang
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