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@article{ART002341681},
author={Nak-Kyoon Ahn and Kim Dae Weon and Hyun-Woo Shim and Jae-Hun Park and Jeung-Jin Park},
title={A study on recovery of rare earth oxide powders from waste NiMH batteries},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2018},
volume={28},
number={2},
pages={85-90},
doi={10.6111/JKCGCT.2018.28.2.085}

TY - JOUR
AU - Nak-Kyoon Ahn
AU - Kim Dae Weon
AU - Hyun-Woo Shim
AU - Jae-Hun Park
AU - Jeung-Jin Park
TI - A study on recovery of rare earth oxide powders from waste NiMH batteries
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2018
VL - 28
IS - 2
PB - The Korea Association Of Crystal Growth, Inc.
SP - 85
EP - 90
SN - 1225-1429
AB - For the recovering rare earths in the spent nickel-metal hydride batteries, 10 M NaOH is added to the solution leached with sulfuric acid. The rare earth powders were precipitated at rate of 98 % at the condition of pH 2.0 or less. The recovered rare earth complex precipitate increased the leaching rate to nitric acid by heat treatment at 800 o C for 4 hours. Subsequently secondary precipitation was performed by adding oxalic acid to the solution in which the rare earth complex precipitate was dissolved. The re-precipitated rare earth powders were converted into oxide form through heat treatment at 800 o C for 4 hours with purity of 99.5 %.
KW - NiMH batteries;Rare earth;Oxide power;Solvent extraction;Recovery
DO - 10.6111/JKCGCT.2018.28.2.085
ER -

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park and Jeung-Jin Park. (2018). A study on recovery of rare earth oxide powders from waste NiMH batteries. Journal of the Korean Crystal Growth and Crystal Technology, 28(2), 85-90.

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park and Jeung-Jin Park. 2018, "A study on recovery of rare earth oxide powders from waste NiMH batteries", Journal of the Korean Crystal Growth and Crystal Technology, vol.28, no.2 pp.85-90. Available from: doi:10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park, Jeung-Jin Park "A study on recovery of rare earth oxide powders from waste NiMH batteries" Journal of the Korean Crystal Growth and Crystal Technology 28.2 pp.85-90 (2018) : 85.

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park, Jeung-Jin Park. A study on recovery of rare earth oxide powders from waste NiMH batteries. 2018; 28(2), 85-90. Available from: doi:10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park and Jeung-Jin Park. "A study on recovery of rare earth oxide powders from waste NiMH batteries" Journal of the Korean Crystal Growth and Crystal Technology 28, no.2 (2018) : 85-90.doi: 10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn; Kim Dae Weon; Hyun-Woo Shim; Jae-Hun Park; Jeung-Jin Park. A study on recovery of rare earth oxide powders from waste NiMH batteries. Journal of the Korean Crystal Growth and Crystal Technology, 28(2), 85-90. doi: 10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn; Kim Dae Weon; Hyun-Woo Shim; Jae-Hun Park; Jeung-Jin Park. A study on recovery of rare earth oxide powders from waste NiMH batteries. Journal of the Korean Crystal Growth and Crystal Technology. 2018; 28(2) 85-90. doi: 10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park, Jeung-Jin Park. A study on recovery of rare earth oxide powders from waste NiMH batteries. 2018; 28(2), 85-90. Available from: doi:10.6111/JKCGCT.2018.28.2.085

Nak-Kyoon Ahn, Kim Dae Weon, Hyun-Woo Shim, Jae-Hun Park and Jeung-Jin Park. "A study on recovery of rare earth oxide powders from waste NiMH batteries" Journal of the Korean Crystal Growth and Crystal Technology 28, no.2 (2018) : 85-90.doi: 10.6111/JKCGCT.2018.28.2.085