Separation Characteristics of Dy and Ho by Low Pressure Liquid Chromatography

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2006 Vol.43, Issue 3 Next Page

Separation Characteristics of Dy and Ho by Low Pressure Liquid Chromatography 저압액체크로마토그래피를 이용한 Dy과 Ho 분리특성: 박계성, 김준수
Kye-Sung Park and Joon-Soo Kim

30 June 2006. pp. 175-180

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Abstract

Separation characteristics of Dy and Ho by the low pressure liquid chromatography have been investigated. The experiments were carried out with concentration range of the eluent HCl 0.1～1mol/L, temperature 20～80℃, and linear velocity 1.41～7.04cm/min. The optimum concentration of eluant was 0.1～0.25mol/L for separation of Dy and Ho, but separation efficiencies decreased above HCl 0.5mol/L. Low linear velocity of eluants increased resolution value(α), and reduced amount of eluants. The separation efficiencies increased between 20℃ and 60℃ with increasing the temperature, and the separation efficiencies decreased above 60℃. Through the experiments, the best separation efficiency could be obtained αDyHo 1.36 under the optimum conditions such as: concentration of the eluant 0.25mol/L, temperature 60℃, linear velocity of eluent 7.04cm/min.

Keywords

low pressure liquid chromatography

extraction chromatography

extraction resin

HEH(EHP)

heavy rare earth

본 연구에서는 저압액체크로마토그래피 장치를 제작하고, 용리액 농도, 용리온도(20～80℃)와 유속(1.41～7.04cm/min)의 변화를 통하여 Dy와 Ho의 분리특성을 파악하고자 하였다. 용리액인 HCl의 농도는 0.1～0.25mol/L가 적절한 것으로 판단되며, HCl 0.5mol/L 이상에서는 분리효과가 거의 없었다. 유속이 느릴수록 분리도는 증가하였고 용리액의 소모량은 감소하였다. 용리온도가 증가함에 따라 20～60℃사이에서 분리도도 증가하였다. 그러나 용리온도 60℃ 이상에서는 분리도가 감소하였다. 저압액체크로마토그래피공정의 적정분리조건은 HCl 농도 0.25mol/L, 용리온도 60℃, 유속 7.04cm/min였으며, 이 조건에서 분리도는 αDyHo=1.36 였다.

키워드

저압액체크로마토그래피

추출크로마토그래피

추출수지

HEH(EHP)

重희토류

References

권세만, 최재우, 이진영, 한춘, 김성돈, 윤호성, 김준수, 1998, “치환 크로마토그래피법에 의한 중희토류(Gd, Tb, Dy)원소의 분리특성”, 한국자원공학회지, 제35권 1호, pp. 1-7.
김상준, 한춘, 이진영, 김성돈, 윤호성, 김준수, 2001, “추출크로마토그래피법에 의한 중희토류(Gd, Tb, Dy, Ho)원소 분리 특성”, 한국자원공학회지, 제38권 4호, pp. 257-264.
노경호, 최대기, 황경엽, 이윤용, 1990, “크로마토그래피를 이용한 분리”, 공업화학, 제8권 4호, pp. 425~434.
박진서, 안기철, 한춘, 이진영, 김성돈, 윤호성, 김준수, 2003, “P507수지 함유 추출 크로마토그래피법에 의한 중희토류원소(Dy, Ho, Er) 분리”, 한국자원공학회지, Vol. 38, No. 4, pp. 248-257.
Akira Hino, Syouhei Nishihama, Takayuki Hirai and Isao Komasawa, 1997, “Practical study of liquid-liquid extraction process for separation of rare earth eleemnts with Bis(2-ethylhexyl)phosphinic acid”, J. Chem. Eng. of Japan, Vol. 30, No. 6, pp. 1040-1046.
Dreisinger, D.B. and Cooper, W. Charles, 1984, “THE SOLVENT EXTRACTION SEPARATION OF COBALT AND NICKEL USING 2-ETHYLHEXYLPHOSPHONIC ACID MONO-2-ETHYLHEXYL ESTER”, Hydrometallurgy, Vol. 12, pp. 1-20.
Dybczyski, Rajmund, 1992, “Role of ion-exchange and extraction chromatography in neutron activation analysis”, J. of Chromatography A, Vol. 600, pp. 17-36.
Himmelblau, David M., Basic Principles and Calculations in Chemical Engineering, 6th Ed., Prentice-Hall, Inc., New Jersey, USA., p. 669.
Topp, N. E. and Young, D. D., 1964, “Separtion of the rare earth elements by ion-exchange chromatography : I. The use of NH4+-H+ development columns”, J. of Chromatography A, Vol. 14, pp. 464-468.
Yu Zongsen and Chen Minbo, 1995, Rare Earth Elements and Their Applications, Met. Industry Press, Beijing, China, pp. 61-97.
Yukio, N., Yao, B., 1997, “Recovery and Separation of Lanthanum(III), Aluminum(III), Cobalt(II), and Nickel(II) from Misch Metal by Solvent Extraction Using Bis (2-ethylhexyl)phosphinic Acid”, J. Separation Sci. and Tech., Vol. 32, No. 6, pp. 1053-1065.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 43
No :3
Pages :175-180

[1] 권세만, 최재우, 이진영, 한춘, 김성돈, 윤호성, 김준수, 1998, “치환 크로마토그래피법에 의한 중희토류(Gd, Tb, Dy)원소의 분리특성”, 한국자원공학회지, 제35권 1호, pp. 1-7.

[2] 김상준, 한춘, 이진영, 김성돈, 윤호성, 김준수, 2001, “추출크로마토그래피법에 의한 중희토류(Gd, Tb, Dy, Ho)원소 분리 특성”, 한국자원공학회지, 제38권 4호, pp. 257-264.

[3] 노경호, 최대기, 황경엽, 이윤용, 1990, “크로마토그래피를 이용한 분리”, 공업화학, 제8권 4호, pp. 425~434.

[4] 박진서, 안기철, 한춘, 이진영, 김성돈, 윤호성, 김준수, 2003, “P507수지 함유 추출 크로마토그래피법에 의한 중희토류원소(Dy, Ho, Er) 분리”, 한국자원공학회지, Vol. 38, No. 4, pp. 248-257.

[5] Akira Hino, Syouhei Nishihama, Takayuki Hirai and Isao Komasawa, 1997, “Practical study of liquid-liquid extraction process for separation of rare earth eleemnts with Bis(2-ethylhexyl)phosphinic acid”, J. Chem. Eng. of Japan, Vol. 30, No. 6, pp. 1040-1046.

[6] Dreisinger, D.B. and Cooper, W. Charles, 1984, “THE SOLVENT EXTRACTION SEPARATION OF COBALT AND NICKEL USING 2-ETHYLHEXYLPHOSPHONIC ACID MONO-2-ETHYLHEXYL ESTER”, Hydrometallurgy, Vol. 12, pp. 1-20.

[7] Dybczyski, Rajmund, 1992, “Role of ion-exchange and extraction chromatography in neutron activation analysis”, J. of Chromatography A, Vol. 600, pp. 17-36.

[8] Himmelblau, David M., Basic Principles and Calculations in Chemical Engineering, 6th Ed., Prentice-Hall, Inc., New Jersey, USA., p. 669.

[9] Topp, N. E. and Young, D. D., 1964, “Separtion of the rare earth elements by ion-exchange chromatography : I. The use of NH4+-H+ development columns”, J. of Chromatography A, Vol. 14, pp. 464-468.

[10] Yu Zongsen and Chen Minbo, 1995, Rare Earth Elements and Their Applications, Met. Industry Press, Beijing, China, pp. 61-97.

[11] Yukio, N., Yao, B., 1997, “Recovery and Separation of Lanthanum(III), Aluminum(III), Cobalt(II), and Nickel(II) from Misch Metal by Solvent Extraction Using Bis (2-ethylhexyl)phosphinic Acid”, J. Separation Sci. and Tech., Vol. 32, No. 6, pp. 1053-1065.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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