유화액막법을 이용한 옥살산구리 미립자의 제조 및 입자크기의 제어

이은주; 최진영; 김종화; 이성식; Eun Joo Lee; Jin Young Choi; Jong Hwa Kim; Sung-Sik Lee

Journal of the Korean Industrial and Engineering Chemistry, Vol.11, No.5, 489-494, August, 2000

Export Citation

유화액막법을 이용한 옥살산구리 미립자의 제조 및 입자크기의 제어

Preparation and Size Control of Fine Particles of Copper Oxalate using Emulsion Type Liquid Membrane

이은주, 최진영¹, 김종화¹, 이성식^†

동아대학교 화학공학과, 부산 604-020
¹창원대학교 공업화학과, 창원 641-773

Eun Joo Lee, Jin Young Choi¹, Jong Hwa Kim¹, and Sung-Sik Lee^†

Department of Chemical Engineering, Dong-A University, Pusan 604-020, Korea
¹Department of Chemical Technology, Changwon National University, Changwon 641-773, Korea

E-mail:

초록

유화액막법을 이용하여 입자 크기가 작고 균일한 옥살산구리 미립자를 제조하였다. 계면활성제는 Span20, 추출제는 D2EHPA를 각각 이용하여 W/O/W 에멀젼을 조제하였으며, 구리 이온이 외수상으로부터 내수상으로 역추출되어 옥살산구리 미립자를 생성시켰다. 옥살산구리 미립자는 유기상과 수상의 비(O/A), 계면활성제의 농도 pH 등에 의해 입자의 크기와 균일성이 크게 영향을 받았다. 유기상의 계면활성제의 농도가 3vol%이며, O/A 비가 2이상일 때 0.2㎛ 이하의 평균입경을 갖는 균일한 옥살산구리 입자가 생성됨을 확인하였다. 첨가 계면활성제의 농도가 증가할수록 입자의 균일성은 증가하였다.

The preparation of fine particles of copper oxalate was carried out using emulsified liquid membrane (W/O/W emulsion) to control the size of particles. Span20 was used as a surfactant, and D2EHPA as an extraction had high extraction equilibrium pH_1/2 value of 2.0. Copper ions were extracted from the external aqueous phase, stripped into the internal aqueous phase, and precipitated in the internal aqueous phase as copper oxalate. The size and homogenity of copper oxalate particles were controlled by the O/A ratio (the volume ratio of organic membrane phase to internal aqueous phase of emulsion), pH of internal aqueous phase and added volume surfactant in organic phase. The optimum conditions for the preparation of fine particles of copper oxalate (Average particle size of 0.2㎛) were O/A ratio of 2 and above 3 vol% of surfactant (span20) in organic phase.

Keywords:fine particles;emulsion;w/o/w;copper;oxalate

[References]

Ritcey GM, Ashbrook AW, "Solvent Extraction," Part I, Elsevier, Amsterdam (1984)
Golding JA, Fouda SA, Saleh V, ISEC, 77, 227 (1977)
Kim SS, Yoon JH, J. Korean Inst. Matal., 19, 933 (1981)
Bouboulis CJ, ISEC, 77, 32 (1977)
Machida J, Shibata J, Nishimura S, "Studies of the Extraction of Lithium and the Effect of Diluent," Technology Report of Kansai University, 20, 61 (1979)
Li NN, "Recent development in Separation Science IV," CRC, Press (1981)
Cussler EL, AIChE J., 17, 1300 (1971)
Gu ZM, Wasan DT, Li NN, "Liquid Surfactant Membranes for Metal Extraction," Surfactant Science Series, Marcel Dekker Inc., New York, 28, 127 (1988)
Gu ZM, Wasan DT, J. Membr. Sci., 26, 129 (1986)
Bartsch RA, Charewicz WA, Kang SI, J. Membr. Sci., 17, 97 (1984)
Qi Z, Cussler EL, J. Membr. Sci., 19, 259 (1984)
Komasawa I, Otake T, Yamashita T, Ind. Eng. Chem. Fundam., 22, 127 (1983)
Takahashi K, Ohtsubo F, Takeuchi H, Kag. Kog. Ronbunshu, 9, 409 (1983)
Fuller EJ, Li NN, J. Membr. Sci., 18, 251 (1984)
Weiss S, Grigoriev V, Muhl P, J. Membr. Sci., 12, 119 (1982)
Izatt RM, Bruening RL, Clark GA, Lamb JD, Christensen J, J. Membr. Sci., 28, 77 (1986)
Izatt RM, Bruening RL, Cho MH, Geng W, Lamb JD, Christensen JJ, J. Membr. Sci., 33, 169 (1987)
Ahn JW, Lee MS, Lee EC, J. Korean Inst. Metal., 28, 32 (1990)
Cahn RP, Li NN, Ind. Eng. Chem. Fundam., 22, 27 (1983)
Yoshikawa M, Suzuki M, Sanui K, Ogata N, J. Membr. Sci., 32, 235 (1987)

[1] Ritcey GM, Ashbrook AW, "Solvent Extraction," Part I, Elsevier, Amsterdam (1984)

[2] Golding JA, Fouda SA, Saleh V, ISEC, 77, 227 (1977)

[3] Kim SS, Yoon JH, J. Korean Inst. Matal., 19, 933 (1981)

[4] Bouboulis CJ, ISEC, 77, 32 (1977)

[5] Machida J, Shibata J, Nishimura S, "Studies of the Extraction of Lithium and the Effect of Diluent," Technology Report of Kansai University, 20, 61 (1979)

[6] Li NN, "Recent development in Separation Science IV," CRC, Press (1981)

[7] Cussler EL, AIChE J., 17, 1300 (1971)

[8] Gu ZM, Wasan DT, Li NN, "Liquid Surfactant Membranes for Metal Extraction," Surfactant Science Series, Marcel Dekker Inc., New York, 28, 127 (1988)

[9] Gu ZM, Wasan DT, J. Membr. Sci., 26, 129 (1986)

[10] Bartsch RA, Charewicz WA, Kang SI, J. Membr. Sci., 17, 97 (1984)

[11] Qi Z, Cussler EL, J. Membr. Sci., 19, 259 (1984)

[12] Komasawa I, Otake T, Yamashita T, Ind. Eng. Chem. Fundam., 22, 127 (1983)

[13] Takahashi K, Ohtsubo F, Takeuchi H, Kag. Kog. Ronbunshu, 9, 409 (1983)

[14] Fuller EJ, Li NN, J. Membr. Sci., 18, 251 (1984)

[15] Weiss S, Grigoriev V, Muhl P, J. Membr. Sci., 12, 119 (1982)

[16] Izatt RM, Bruening RL, Clark GA, Lamb JD, Christensen J, J. Membr. Sci., 28, 77 (1986)

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

[18] Ahn JW, Lee MS, Lee EC, J. Korean Inst. Metal., 28, 32 (1990)

[19] Cahn RP, Li NN, Ind. Eng. Chem. Fundam., 22, 27 (1983)

[20] Yoshikawa M, Suzuki M, Sanui K, Ogata N, J. Membr. Sci., 32, 235 (1987)