화학처리 및 금속이온 교환된 천연 제올라이트의 질소 흡착특성

이재영; 심미자; 김상욱

Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.6, 1024-1029, December, 1994

Export Citation

화학처리 및 금속이온 교환된 천연 제올라이트의 질소 흡착특성

Nitrogen Adsorption Characteristics of Chemical-treated and Metal Ion-exchanged Natural Zeolite

이재영, 심미자, 김상욱

초록

경북 감포지역에서 산출되는 천연 제올라이트를 각기 다른 농도의 HCl과 NaOH로 화학처리한 시료와 금속양이온 교환한 시료를 제조 하였다. 이들 시료에 대한 질소의 흡착특성을 25℃, 100∼760 torr의 범위에서 조사하였다. 산처리한 시료의 질소 흡착량은 처리하기 전보다 감소하였으며, 알칼리 처리한 시료는 많이 증가하였다. 0.5N-HCl 처리 후 0.5N-NaOH로 연속처리한 경우 약 200% 정도 흡착량이 개선되었으나, 알칼리 처리 후 산으로 연속처리한 경우에는 오히려 감소하였다. Na⁺, K⁺, Cs⁺를 이온교환한 경우 이온의 크기가 증가할수록 흡착량은 감소했으며, Mg²⁺, Ca²⁺, Ba²⁺를 이온교환한 경우는 이온의 크기가 증가할수록 흡착량이 증가하였다.

The characteristics of the nitrogen adsorption with natural zeolite produced in Kampo area according to the chemical treatment by HCl and/or NaOH or the exchanging metal ion were investigated in the pressure range of 100∼760torr at 25℃. The amount of nitrogen adsorption was followed at increment in the order of NaOH treatment>nontreatment> HCl treatment. Adsorption amount on natural zeolite treated with 0.5N-HCl/NaOH was improved about 200%, whereas that on natural zeolite treated with 0.5N-NaOH/HCl was decreased. When metal ion of natural zeolite was exchanged with Na⁺, K⁺ and Cs⁺, adsorption amount of nitrogen was decreased as the size of cation was increased. But metal ion of natural zeolite was exchanged with Mg²⁺, Ca²⁺ and Ba²⁺, the amount of nitrogen adsorption was increased.

[References]

Szostak R, Molecular Sieves-Principles of Synthesis and Identification, VNR Company, Ch. 1 (1989)
Dyer A, Zeolite Molecular Sieves, John Wiley and Sons, Ch. 3 (1988)
Blackmond DG, Ko EI, J. Catal., 94, 343 (1985)
Atkins RS, Hydrocarb. Process., 49, 132 (1970)
Seo G, Kim K, Moon H, Park H, HWAHAK KONGHAK, 19(5), 349 (1981)
Lee JY, Lee HK, Lee JS, Shim MJ, Kim SW, J. Korean Inst. Surf. Eng., 26, 285 (1993)
Ha BH, J. Korean Inst. Surf. Eng., 12, 75 (1974)
Maher PK, Hunter FD, J. Adv. Chem. Ser., 101, 266 (1971)
Gould RF, Am. Chem. Soc., 220 (1971)
Barrer RM, J. Chem. Phys., 47, 82 (1950)
Barrer RM, J. Colloid Interface Sci., 21, 415 (1966)
Slejko FL, Adsorption Technology, Marcel Dekker, New York (1985)
Han YT, Ha BH, J. Korean Ind. Eng. Chem., 2(1), 77 (1991)

[Referenced By]

[1] Szostak R, Molecular Sieves-Principles of Synthesis and Identification, VNR Company, Ch. 1 (1989)

[2] Dyer A, Zeolite Molecular Sieves, John Wiley and Sons, Ch. 3 (1988)

[3] Blackmond DG, Ko EI, J. Catal., 94, 343 (1985)

[4] Atkins RS, Hydrocarb. Process., 49, 132 (1970)

[5] Seo G, Kim K, Moon H, Park H, HWAHAK KONGHAK, 19(5), 349 (1981)

[6] Lee JY, Lee HK, Lee JS, Shim MJ, Kim SW, J. Korean Inst. Surf. Eng., 26, 285 (1993)

[7] Ha BH, J. Korean Inst. Surf. Eng., 12, 75 (1974)

[8] Maher PK, Hunter FD, J. Adv. Chem. Ser., 101, 266 (1971)

[9] Gould RF, Am. Chem. Soc., 220 (1971)

[10] Barrer RM, J. Chem. Phys., 47, 82 (1950)

[11] Barrer RM, J. Colloid Interface Sci., 21, 415 (1966)

[12] Slejko FL, Adsorption Technology, Marcel Dekker, New York (1985)

[13] Han YT, Ha BH, J. Korean Ind. Eng. Chem., 2(1), 77 (1991)