A Study of the Bubble Properties in the Column Flotation System

Jung-Eun Lee; Woo-Sik Choi; Jae-Keun Lee

Korean Journal of Chemical Engineering, Vol.20, No.5, 942-949, September, 2003

DOI10.1007/BF02697303 Export Citation

A Study of the Bubble Properties in the Column Flotation System

Jung-Eun Lee^†, Woo-Sik Choi¹, and Jae-Keun Lee¹

HydroLab Institute, Sum-Jin EST Company, Songjeong-Dong, Gangseo-Gu, Busan 618-270, Korea
¹School of Mechanical Engineering, Pusan National University, San 30, Changjeon-Dong, Keumjeong-Ku, Busan 609-735, Korea

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The bubble properties in the column flotation system are deeply affected by the bubble-generator type, frother dosage, and superficial gas velocity. This study is to determine the bubble-generator type, which effectively produces micro-bubbles to affect the flotation efficiency. Characteristics for two types of bubble generators like the in-line mixer and sparger are examined by bubble properties such as bubble diameter, holdup and bubble velocity. Micro bubbles generated from an in-line mixer result in the increase of the bubble rising velocity and gas holdup. Bubbles produced at the in-line mixer were more effective for operating the flotation system than that of the sparger. It means that the in-line mixer bubble generator is more effective than a sparger in designing or operating the column flotation system.

Keywords:Column Flotation;Bubble;Gas Holdup;Bubble Swarm Velocity;Bubble Generator;Frother

[References]

Amhed N, Jameson GJ, Int. J. Miner. Process., 14, 195 (1985)
Cassel EA, Kfuman KM, Matijevic E, Water Res., 9, 1017 (1975)
Clift R, Grace JR, Weber ME, "Bubble, Drops, and Particles. Academic Press," New York (1978)
Crawford R, Ralston J, Int. J. Miner. Process., 23, 1 (1988)
Dave N, Gray NB, Trans. Instn. Min. Metal., 98, C178 (1989)
Dobby GS, Finch JA, Can. Metallurgical Quarterly, 25, 9 (1986)
Dobby GS, Yianatos JB, Finch JA, Can. Metallurgical Quarterly, 27, 85 (1988)
Finch JA, Dobby GS, "Column Flotation," Pergamon Press, 9 (1990)
Hur JM, Chang D, Chung TH, Korean J. Chem. Eng., 15(6), 596 (1998)
Jiang ZW, Holtham PN, Trans. Instn. Min. Metall., 95, C187 (1986)
Kim SD, Baker CGJ, Bergougnou MA, Chem. Eng. Sci., 32, 1299 (1977)
Lee DH, Epstein N, Grace JR, Korean J. Chem. Eng., 17(6), 684 (2000)
Lee JE, "Separation Characteristics of Fly Ash through the Analysis of Bubble Behavior in Counter Current Column Flotation," Ph.D. Dissertation, Power Technology, Pusan National University, Pusan, Korea (1999)
Lee JE, Lee JK, Korean J. Chem. Eng., 19(4), 703 (2002)
Masliyah JH, Chem. Eng. Sci., 34, 1166 (1979)
Nicklin DJ, Chem. Eng. Sci., 17, 693 (1962)
Pal R, Masliyah J, Can. J. Chem. Eng., 67, 916 (1989)
Patel SA, Daly JG, Bukur DB, AIChE J., 36, 93 (1990)
Richardson JF, Zaki WN, Trans. Inst. Chem. Eng., 32, 35 (1954)
Sasaki H, Matsukawa H, Usui S, Matijevic E, J. Colloid Interface Sci., 113, 500 (1986)
Shah YT, Kelkar SP, Godbole SP, AIChE J., 28, 353 (1982)
Shen G, Finch JA, Chem. Eng. Sci., 51(14), 3665 (1996)
Summers AJ, Xu M, Finch JA, Trans. Inst. Min. Metall., 102, C135 (1992)
Yamashita F, Korean J. Chem. Eng., 16(6), 789 (1999)
Yianatos JB, Finch JA, Dobby GS, Xu M, J. Colloid Interface Sci., 126, 37 (1987)
Yoon RH, Miner. Eng., 6, 619 (1993)
Zhou ZA, Egiebor NO, Plitt LR, Can. Metallurgical Quarterly, 32, 89 (1993)

[Referenced By]

[1] Amhed N, Jameson GJ, Int. J. Miner. Process., 14, 195 (1985)

[2] Cassel EA, Kfuman KM, Matijevic E, Water Res., 9, 1017 (1975)

[3] Clift R, Grace JR, Weber ME, "Bubble, Drops, and Particles. Academic Press," New York (1978)

[4] Crawford R, Ralston J, Int. J. Miner. Process., 23, 1 (1988)

[5] Dave N, Gray NB, Trans. Instn. Min. Metal., 98, C178 (1989)

[6] Dobby GS, Finch JA, Can. Metallurgical Quarterly, 25, 9 (1986)

[7] Dobby GS, Yianatos JB, Finch JA, Can. Metallurgical Quarterly, 27, 85 (1988)

[8] Finch JA, Dobby GS, "Column Flotation," Pergamon Press, 9 (1990)

[9] Hur JM, Chang D, Chung TH, Korean J. Chem. Eng., 15(6), 596 (1998)

[10] Jiang ZW, Holtham PN, Trans. Instn. Min. Metall., 95, C187 (1986)

[11] Kim SD, Baker CGJ, Bergougnou MA, Chem. Eng. Sci., 32, 1299 (1977)

[12] Lee DH, Epstein N, Grace JR, Korean J. Chem. Eng., 17(6), 684 (2000)

[13] Lee JE, "Separation Characteristics of Fly Ash through the Analysis of Bubble Behavior in Counter Current Column Flotation," Ph.D. Dissertation, Power Technology, Pusan National University, Pusan, Korea (1999)

[14] Lee JE, Lee JK, Korean J. Chem. Eng., 19(4), 703 (2002)

[15] Masliyah JH, Chem. Eng. Sci., 34, 1166 (1979)

[16] Nicklin DJ, Chem. Eng. Sci., 17, 693 (1962)

[17] Pal R, Masliyah J, Can. J. Chem. Eng., 67, 916 (1989)

[18] Patel SA, Daly JG, Bukur DB, AIChE J., 36, 93 (1990)

[19] Richardson JF, Zaki WN, Trans. Inst. Chem. Eng., 32, 35 (1954)

[20] Sasaki H, Matsukawa H, Usui S, Matijevic E, J. Colloid Interface Sci., 113, 500 (1986)

[21] Shah YT, Kelkar SP, Godbole SP, AIChE J., 28, 353 (1982)

[22] Shen G, Finch JA, Chem. Eng. Sci., 51(14), 3665 (1996)

[23] Summers AJ, Xu M, Finch JA, Trans. Inst. Min. Metall., 102, C135 (1992)

[24] Yamashita F, Korean J. Chem. Eng., 16(6), 789 (1999)

[25] Yianatos JB, Finch JA, Dobby GS, Xu M, J. Colloid Interface Sci., 126, 37 (1987)

[26] Yoon RH, Miner. Eng., 6, 619 (1993)

[27] Zhou ZA, Egiebor NO, Plitt LR, Can. Metallurgical Quarterly, 32, 89 (1993)