Application of Emulsion Liquid Membrane Technology to the Extraction of Silver

Sang Cheol Lee; Young Sun Mok; Won Kook Lee

Journal of Industrial and Engineering Chemistry, Vol.2, No.2, 130-136, November, 1996

Sang Cheol Lee , Young Sun Mok¹, and Won Kook Lee²

Dept. of Chem. Eng., Kunsan National University, Kunsan, Chonbuk 573-701, Korea
¹Environment & Energy Research Team, Technical Research Laboratories, Pohang Iron & Steel Co., Ltd., Pohang P.O. Box 36, Kyungbuk 790-785, Korea
²Dept. of Chem. Eng., Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusung-gu, Taejeon 305-701, Korea

The extraction of silver by water/oil/water (W/O/W) emulsion liquid membranes (LEMs) using di-2-ethylhexyl phosphoric acid (D2EHPA) as a carrier was carried out experimentally under various operating conditions in a batch system; also parametric effects were considered. More than 99% extraction of silver was achieved under specific conditions. The counter-transport of silver and hydrogen ions were facilitated by the carrier, and the use of hydrochloric acid as an internal reagent accelerated silver transport.

[References]

Bray JL, "Non-Ferrous Production Metallurgy," 425-438, John Wiley & Sons, New York (1959)
Dorr JVN, Bosqui FL, "Cyanidation and Concentration of Gold and Silver Ores," 238-276, McGraw-Hill Book, New York (1950)
Gupta A, Ehrlich HJ, J. Biotechnol., 9, 287 (1989)
Anderson SOS, Reinhardt H, "Handbook of Solvent Extraction," T.C. Lo (Ed.), 751, John Wiley & Sons, New York (1983)
Izatt RM, Bruening RL, Cho MH, Geng W, Lamb JD, Christensen JJ, J. Membr. Sci., 33, 169 (1987)
Izatt RM, Clark GA, Christensen JJ, J. Membr. Sci., 24, 1 (1985)
Bromberg L, Lewin I, Warshawsky A, Hydrometallurgy, 33, 59 (1993)
Tromp M, Burgard M, Leroy MJF, Prevost M, J. Membr. Sci., 38, 295 (1988)
Draxler J, Marr R, Chem. Eng. Process., 20, 319 (1986)
De AK, Khopkar SM, Chalmers RA, "Solvent Extraction of Metals," Chap. 9, pp. 158-200, Van Nostrand Reingold, London (1970)
Lee SC, Ahn BS, Lee WK, J. Membr. Sci., 114(2), 171 (1996)
Ohtake T, hano T, Takagi K, Nakashio F, J. Chem. Eng. Jpn., 20, 443 (1987)
Lee CJ, Chan CC, Ind. Eng. Chem. Res., 29, 96 (1990)
Gadekar PT, Mukkolath AV, Tiwari KK, Sep. Sci. Technol., 27, 427 (1992)
Hirato T, Kishigami I, Awakura Y, Majima H, Hydrometallurgy, 26, 19 (1991)
Imai M, Furusaki S, Kag. Kog. Ronbunshu, 13, 561 (1987)

[Referenced By]

[Related Articles]

[1] Bray JL, "Non-Ferrous Production Metallurgy," 425-438, John Wiley & Sons, New York (1959)

[2] Dorr JVN, Bosqui FL, "Cyanidation and Concentration of Gold and Silver Ores," 238-276, McGraw-Hill Book, New York (1950)

[3] Gupta A, Ehrlich HJ, J. Biotechnol., 9, 287 (1989)

[4] Anderson SOS, Reinhardt H, "Handbook of Solvent Extraction," T.C. Lo (Ed.), 751, John Wiley & Sons, New York (1983)

[5] Izatt RM, Bruening RL, Cho MH, Geng W, Lamb JD, Christensen JJ, J. Membr. Sci., 33, 169 (1987)

[6] Izatt RM, Clark GA, Christensen JJ, J. Membr. Sci., 24, 1 (1985)

[7] Bromberg L, Lewin I, Warshawsky A, Hydrometallurgy, 33, 59 (1993)

[8] Tromp M, Burgard M, Leroy MJF, Prevost M, J. Membr. Sci., 38, 295 (1988)

[9] Draxler J, Marr R, Chem. Eng. Process., 20, 319 (1986)

[10] De AK, Khopkar SM, Chalmers RA, "Solvent Extraction of Metals," Chap. 9, pp. 158-200, Van Nostrand Reingold, London (1970)

[11] Lee SC, Ahn BS, Lee WK, J. Membr. Sci., 114(2), 171 (1996)

[12] Ohtake T, hano T, Takagi K, Nakashio F, J. Chem. Eng. Jpn., 20, 443 (1987)

[13] Lee CJ, Chan CC, Ind. Eng. Chem. Res., 29, 96 (1990)

[14] Gadekar PT, Mukkolath AV, Tiwari KK, Sep. Sci. Technol., 27, 427 (1992)

[15] Hirato T, Kishigami I, Awakura Y, Majima H, Hydrometallurgy, 26, 19 (1991)

[16] Imai M, Furusaki S, Kag. Kog. Ronbunshu, 13, 561 (1987)