A study on the synthesis of lanthanum oxide (La2O3) from NaLa(SO4)2 · H2O by metathesis reaction (NaLa(SO4)2· H2O 결정상으로부터 이온치환반응에 의한 산화란탄 (La2O3) 분말합성에 관한 연구)

Kim Dae Weon (김대원); Nak-Kyoon Ahn (안낙균); Hyun-Woo Shim (심현우); Chan Gi Lee (이찬기); Hee-Lack Choi (최희락); Hyun Seon Hong (홍현선)

doi:10.6111/JKCGCT.2018.28.5.211

A study on the synthesis of lanthanum oxide (La2O3) from NaLa(SO4)2 · H2O by metathesis reaction

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2018, 28(5), pp.211-216
DOI : 10.6111/JKCGCT.2018.28.5.211
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Published : October 31, 2018

Kim Dae Weon ¹, Nak-Kyoon Ahn ², Hyun-Woo Shim ³, Chan Gi Lee ³, Hee-Lack Choi ⁴, Hyun Seon Hong ⁵

¹고등기술연구원연구조합
²고등기술연구원 신소재공정센터
³고등기술연구원
⁴부경대학교
⁵성신여자대학교

Accredited

ABSTRACT

The recovery of rare earth elements (REE) including La, Nd and Ce from spent batteries is important issues to reuse scarce resources. Herein, we present a simple recovery process to obtain lanthanum oxide (La2O3) from spent Ni-MH batteries, and demonstrate the conversion mechanism from NaLa(SO4)2 · H2O to La2O3. This strategy requires the initial preparation of NaLa(SO4)2 · H2O and subsequent metathesis reaction with Na2CO3 at 70 o C. This metathesis reaction resulted in the crystalline lanthanum carbonate hydrate (La2(CO3)3 · xH2O) powder with plate-like morphology. On the basis of TGA result, the La2(CO3)3 · xH2O powder was calcined in air at three different temperatures, that is, 300 o C, 500 o C, and 1000 o C. As the calcination temperature increased, the morphology of powder was changed; prism-like (NaLa(SO4)2 · H2O)→platelike (La2(CO3)3 · xH2O)→aggregated irregular shape (La2O3). Futhermore, XRD results indicated that the crystalline La2O3 could be synthesized after the metathesis reaction with Na2CO3, followed by heat-treatment at 1000 o C, along with a change of crystallographic structures; NaLa(SO4)2 · H2O→La2(CO3)3 · xH2O→La2O3.

KEYWORDS

Lanthanum, Rare earth, Carbonate, Metathesis reaction, Lanthanum oxide, Conversion mechanism

Citation status

* References for papers published after 2023 are currently being built.

[journal] P. Zhang / 1998 / Hydrometallurgical process for recovery of metal values from spent nickel-metal hydride secondary batteries / Hydrometallurgy 50 : 61~

[journal] D.A. Bertuol / 2009 / Spent NiMH batteries - The role of selective precipitation in the recovery of valuable metals / J. of Power Sources 193 : 914~

[journal] L.E.O.C. Rodrigues / 2010 / Hydrometallurgical separation of rare earth elements, cobalt and nickel from spent nickel-metal-hydride batteries / J. of Power Sources 195 : 3735~

[journal] P. Dvorak / 2015 / Obtaining nickel and cobalt from spent NiMH batteries / Journal of the Polish Mineral Engineering Society 16 : 1~

[journal] 김준수 / 2004 / Caustic Soda Decomposition and Leaching of Monazite in Hong-Cheon Area Deposit / 자원리싸이클링 / 한국자원리싸이클링학회 13(4) : 11~16

[journal] 이만승 / 2010 / Extractive Metallurgy and Separation Technology of Rare Earth Ores / 자원리싸이클링 / 한국자원리싸이클링학회 19(6) : 27~35

[journal] R.D. Abreu / 2010 / Purification of rare earth elements from monazite sulphuric acid leach liquor and the production of high-purity ceric oxide / Minerals Engineering 23 : 536~

[journal] 안낙균 / 2018 / A Study on Recovery of Rare Earth and Acid Leaching for Wet Recycling of Waste NiMH Batteries / 자원리싸이클링 / 한국자원리싸이클링학회 27(1) : 22~30

[journal] 안낙균 / 2018 / A study on recovery of rare earth oxide powders from waste NiMH batteries / 한국결정성장학회지 / 한국결정성장학회 28(2) : 85~90

[journal] 김대원 / 2018 / A Study on the Preparation of Rare Earth Oxide Powder for Rare Earth Precipitates Recovered from Spent Ni-MH Batteries / 한국분말재료학회지 / 한국분말재료학회 25(3) : 213~219

[journal] C.K. Gupta / 1992 / Extractive metallurgy of rare earths / Int. Mater. Rev. 37 : 197~

[journal] X. Zhang / 2014 / Non-isothermal kinetic analysis of thermal dehydration of <TEX>$La_2(CO_3)_3{\cdot}3.4H_2O$</TEX> in air / Trans. Nonferrous Met. Soc. China 24 : 3378~

[journal] B. Vallina / 2015 / The role of amorphous precursors in the crystallization of La and Nd carbonates / Nanoscale 7 : 12166~

[journal] P. Kim / 2018 / Trends in structure and thermodynamic properties of normal rare Earth carbonates and rare Earth hydroxycarbonates / Minerals 8 : 106~

KJCKorea
Journal Central

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

A study on the synthesis of lanthanum oxide (La2O3) from NaLa(SO4)2 · H2O by metathesis reaction

ABSTRACT

KEYWORDS

Citation status

* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

A study on the synthesis of lanthanum oxide (La2O3) from NaLa(SO4)2 · H2O by metathesis reaction

ABSTRACT

KEYWORDS

Statistics

Tools

Issue List

Citation status

KCI Citation Counts (0)

REFERENCES (14) * References for papers published after 2023 are currently being built.

Search PDF

Citation

* References for papers published after 2023 are currently being built.