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At least 685 records · Page 38
All sourcesNASA NTRSDOE OSTI
DOE OSTI2023

Evaluation of two extraction chromatography resins for scandium and titanium separation for medical isotope production

Scandium-47 ( 47 Sc) can be used in nuclear medicine as a therapeutic-diagnostic, or "theragnostic," radioactive medical isotope for cancer detection and treatment. The 47 Sc isotope can be produced through the photonuclear reaction 48 Ti(γ,p) 47 Sc by irradiating enriched 48 Ti target material. The enriched target material necessary for production is costly; 48 TiO 2 costs ~ $\$$1550/g, and targets can be > 50 g ($\$$77,500) to produce medically relevant amounts of 47 Sc. In order to keep costs low, a highly efficient separation of scandium from bulk titanium is desired, along with efficient methods for recycling the target material. Here this research is focused on evaluating efficient methods for the separation of scandium from bulk quantities of titanium using commercially available diglycolamide-based and hydroxamate-based extraction chromatography resins (DGA resin and ZR resin, respectively). The sorption of 47 Sc and Ti on these resins were investigated at varying concentrations of HNO 3 , HCl, H 2 SO 4 , and HF to explore how they might be used in a large-scale production/processing setting.

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEA↗
DOE OSTI2020

Materials Data on Sc3BPb by Materials Project

PbBSc3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc is bonded in a distorted linear geometry to two equivalent B and four equivalent Pb atoms. Both Sc–B bond lengths are 2.34 Å. All Sc–Pb bond lengths are 3.32 Å. B is bonded to six equivalent Sc atoms to form BSc6 octahedra that share corners with six equivalent BSc6 octahedra and faces with eight equivalent PbSc12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Pb is bonded to twelve equivalent Sc atoms to form PbSc12 cuboctahedra that share corners with twelve equivalent PbSc12 cuboctahedra, faces with six equivalent PbSc12 cuboctahedra, and faces with eight equivalent BSc6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc3SnB by Materials Project

SnBSc3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc is bonded in a distorted linear geometry to two equivalent B and four equivalent Sn atoms. Both Sc–B bond lengths are 2.33 Å. All Sc–Sn bond lengths are 3.29 Å. B is bonded to six equivalent Sc atoms to form BSc6 octahedra that share corners with six equivalent BSc6 octahedra and faces with eight equivalent SnSc12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Sn is bonded to twelve equivalent Sc atoms to form SnSc12 cuboctahedra that share corners with twelve equivalent SnSc12 cuboctahedra, faces with six equivalent SnSc12 cuboctahedra, and faces with eight equivalent BSc6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc3TlB by Materials Project

Sc3TlB is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc is bonded in a linear geometry to four equivalent Tl and two equivalent B atoms. All Sc–Tl bond lengths are 3.32 Å. Both Sc–B bond lengths are 2.35 Å. Tl is bonded to twelve equivalent Sc atoms to form TlSc12 cuboctahedra that share corners with twelve equivalent TlSc12 cuboctahedra, faces with six equivalent TlSc12 cuboctahedra, and faces with eight equivalent BSc6 octahedra. B is bonded to six equivalent Sc atoms to form BSc6 octahedra that share corners with six equivalent BSc6 octahedra and faces with eight equivalent TlSc12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScBe5 by Materials Project

Be5Sc crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Be sites. In the first Be site, Be is bonded in a 12-coordinate geometry to six equivalent Be and three equivalent Sc atoms. All Be–Be bond lengths are 2.19 Å. All Be–Sc bond lengths are 2.61 Å. In the second Be site, Be is bonded to eight Be and four equivalent Sc atoms to form a mixture of face, edge, and corner-sharing BeSc4Be8 cuboctahedra. All Be–Be bond lengths are 2.26 Å. All Be–Sc bond lengths are 2.87 Å. Sc is bonded in a 6-coordinate geometry to eighteen Be atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScGaCu2 by Materials Project

ScCu2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc is bonded in a distorted body-centered cubic geometry to eight equivalent Cu and six equivalent Ga atoms. All Sc–Cu bond lengths are 2.68 Å. All Sc–Ga bond lengths are 3.09 Å. Cu is bonded in a distorted body-centered cubic geometry to four equivalent Sc and four equivalent Ga atoms. All Cu–Ga bond lengths are 2.68 Å. Ga is bonded in a distorted body-centered cubic geometry to six equivalent Sc and eight equivalent Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScGaNi2 by Materials Project

ScNi2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc is bonded in a body-centered cubic geometry to eight equivalent Ni and six equivalent Ga atoms. All Sc–Ni bond lengths are 2.62 Å. All Sc–Ga bond lengths are 3.02 Å. Ni is bonded in a body-centered cubic geometry to four equivalent Sc and four equivalent Ga atoms. All Ni–Ga bond lengths are 2.62 Å. Ga is bonded in a distorted body-centered cubic geometry to six equivalent Sc and eight equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScGa2Ni by Materials Project

ScNiGa2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sc is bonded in a 1-coordinate geometry to three equivalent Ni and ten equivalent Ga atoms. There are one shorter (2.70 Å) and two longer (2.92 Å) Sc–Ni bond lengths. There are a spread of Sc–Ga bond distances ranging from 2.86–3.15 Å. Ni is bonded in a 9-coordinate geometry to three equivalent Sc and six equivalent Ga atoms. There are two shorter (2.45 Å) and four longer (2.49 Å) Ni–Ga bond lengths. Ga is bonded in a 10-coordinate geometry to five equivalent Sc, three equivalent Ni, and two equivalent Ga atoms. There are one shorter (2.60 Å) and one longer (2.71 Å) Ga–Ga bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScGa2 by Materials Project

ScGa2 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Sc is bonded in a 10-coordinate geometry to ten Ga atoms. There are a spread of Sc–Ga bond distances ranging from 2.83–3.00 Å. There are three inequivalent Ga sites. In the first Ga site, Ga is bonded in a distorted square co-planar geometry to four equivalent Sc and four equivalent Ga atoms. All Ga–Ga bond lengths are 3.06 Å. In the second Ga site, Ga is bonded in a distorted square co-planar geometry to four equivalent Sc and four equivalent Ga atoms. All Ga–Ga bond lengths are 3.05 Å. In the third Ga site, Ga is bonded to six equivalent Sc and six Ga atoms to form a mixture of distorted corner, edge, and face-sharing GaSc6Ga6 cuboctahedra. Both Ga–Ga bond lengths are 2.78 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScZn12 by Materials Project

ScZn12 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sc is bonded in a 12-coordinate geometry to twenty Zn atoms. There are a spread of Sc–Zn bond distances ranging from 3.11–3.38 Å. There are three inequivalent Zn sites. In the first Zn site, Zn is bonded to two equivalent Sc and ten Zn atoms to form a mixture of distorted face, edge, and corner-sharing ZnSc2Zn10 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.57–2.71 Å. In the second Zn site, Zn is bonded in a distorted q6 geometry to two equivalent Sc and ten Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.65–2.86 Å. In the third Zn site, Zn is bonded in a 10-coordinate geometry to one Sc and nine Zn atoms. The Zn–Zn bond length is 2.62 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScNi4Sn by Materials Project

ScNi4Sn crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sc is bonded in a 12-coordinate geometry to twelve equivalent Ni and four equivalent Sn atoms. All Sc–Ni bond lengths are 2.86 Å. All Sc–Sn bond lengths are 2.99 Å. Ni is bonded to three equivalent Sc, six equivalent Ni, and three equivalent Sn atoms to form a mixture of face, edge, and corner-sharing NiSc3Ni6Sn3 cuboctahedra. All Ni–Ni bond lengths are 2.44 Å. All Ni–Sn bond lengths are 2.86 Å. Sn is bonded in a 4-coordinate geometry to four equivalent Sc and twelve equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScSnPt by Materials Project

ScPtSn is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sc is bonded in a body-centered cubic geometry to four equivalent Pt and four equivalent Sn atoms. All Sc–Pt bond lengths are 2.81 Å. All Sc–Sn bond lengths are 2.81 Å. Pt is bonded to four equivalent Sc and six equivalent Sn atoms to form distorted PtSc4Sn6 tetrahedra that share corners with four equivalent SnSc4Pt6 tetrahedra, corners with six equivalent PtSc4Sn6 tetrahedra, edges with six equivalent SnSc4Pt6 tetrahedra, and faces with twelve equivalent PtSc4Sn6 tetrahedra. All Pt–Sn bond lengths are 3.25 Å. Sn is bonded to four equivalent Sc and six equivalent Pt atoms to form distorted SnSc4Pt6 tetrahedra that share corners with four equivalent PtSc4Sn6 tetrahedra, corners with six equivalent SnSc4Pt6 tetrahedra, edges with six equivalent PtSc4Sn6 tetrahedra, and faces with twelve equivalent SnSc4Pt6 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2AlC by Materials Project

Sc2AlC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Sc–Al bond lengths are 3.16 Å. All Sc–C bond lengths are 2.27 Å. Al is bonded in a 6-coordinate geometry to six equivalent Sc atoms. C is bonded to six equivalent Sc atoms to form edge-sharing CSc6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2TlC by Materials Project

Sc2TlC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc is bonded in a 3-coordinate geometry to three equivalent Tl and three equivalent C atoms. All Sc–Tl bond lengths are 3.26 Å. All Sc–C bond lengths are 2.30 Å. Tl is bonded to six equivalent Sc and six equivalent Tl atoms to form distorted TlSc6Tl6 cuboctahedra that share corners with six equivalent TlSc6Tl6 cuboctahedra, corners with six equivalent CSc6 octahedra, edges with six equivalent TlSc6Tl6 cuboctahedra, edges with six equivalent CSc6 octahedra, and faces with six equivalent TlSc6Tl6 cuboctahedra. The corner-sharing octahedral tilt angles are 21°. All Tl–Tl bond lengths are 3.38 Å. C is bonded to six equivalent Sc atoms to form CSc6 octahedra that share corners with six equivalent TlSc6Tl6 cuboctahedra, edges with six equivalent TlSc6Tl6 cuboctahedra, and edges with six equivalent CSc6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScCuSn by Materials Project

ScCuSn crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sc is bonded in a 12-coordinate geometry to six equivalent Cu and six equivalent Sn atoms. There are three shorter (2.81 Å) and three longer (3.41 Å) Sc–Cu bond lengths. There are three shorter (3.01 Å) and three longer (3.15 Å) Sc–Sn bond lengths. Cu is bonded in a 10-coordinate geometry to six equivalent Sc and four equivalent Sn atoms. There are three shorter (2.64 Å) and one longer (2.76 Å) Cu–Sn bond lengths. Sn is bonded in a 10-coordinate geometry to six equivalent Sc and four equivalent Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScInCu4 by Materials Project

ScCu4In is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sc is bonded in a 12-coordinate geometry to twelve equivalent Cu and four equivalent In atoms. All Sc–Cu bond lengths are 2.93 Å. All Sc–In bond lengths are 3.07 Å. Cu is bonded to three equivalent Sc, six equivalent Cu, and three equivalent In atoms to form a mixture of edge, face, and corner-sharing CuSc3In3Cu6 cuboctahedra. There are three shorter (2.50 Å) and three longer (2.51 Å) Cu–Cu bond lengths. All Cu–In bond lengths are 2.94 Å. In is bonded in a 4-coordinate geometry to four equivalent Sc and twelve equivalent Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2InNi2 by Materials Project

Sc2Ni2In crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Sc is bonded in a 6-coordinate geometry to six equivalent Ni and four equivalent In atoms. There are two shorter (2.68 Å) and four longer (2.72 Å) Sc–Ni bond lengths. All Sc–In bond lengths are 3.14 Å. Ni is bonded in a 9-coordinate geometry to six equivalent Sc, one Ni, and two equivalent In atoms. The Ni–Ni bond length is 2.48 Å. Both Ni–In bond lengths are 2.83 Å. In is bonded to eight equivalent Sc and four equivalent Ni atoms to form a mixture of distorted face and corner-sharing InSc8Ni4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc3SnC by Materials Project

Sc3SnC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc is bonded in a linear geometry to four equivalent Sn and two equivalent C atoms. All Sc–Sn bond lengths are 3.21 Å. Both Sc–C bond lengths are 2.27 Å. Sn is bonded to twelve equivalent Sc atoms to form SnSc12 cuboctahedra that share corners with twelve equivalent SnSc12 cuboctahedra, faces with six equivalent SnSc12 cuboctahedra, and faces with eight equivalent CSc6 octahedra. C is bonded to six equivalent Sc atoms to form CSc6 octahedra that share corners with six equivalent CSc6 octahedra and faces with eight equivalent SnSc12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗