Melting Characteristics of Metal Wastes in an Electric Arc Furnace

Pyung-Seob Song; Byung-Youn Min; Wang-Kyu Choi; Chong-Hun Jung; Won-Zin Oh; Jin-Ho Park

Journal of Industrial and Engineering Chemistry, Vol.12, No.2, 248-254, March, 2006

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Melting Characteristics of Metal Wastes in an Electric Arc Furnace

Pyung-Seob Song^†, Byung-Youn Min¹, Wang-Kyu Choi , Chong-Hun Jung, Won-Zin Oh , and Jin-Ho Park

Korea Atomic Energy Research Institute, P.O. Box 150, Yusung-Gu Daejeon 305-600, Korea
¹School of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea

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The distribution of radioactive nuclides, such as cobalt, cesium, and strontium, has been investigated in a lab-scale d. c. arc furnace. The slag former for the melting of the stainless steel and carbon steel was based on the constiuents of silica (SiO2), calcium oxide (CaO), aluminum oxide (Al2O3), borate (B2O3), and calcium fluidity and the oxidative potential, respectively. In the melting of the stainless steel, the legree of slag formation increased upon increasing of the concentration of the slag former. The effects of the slag basicity on the amount of slag formation showed, however, a local maximum value of the slag formation with an increase of the basicity index in the melting of the stainless stel as well as in the melting of the carbon steel. With an increase in the amount of slag former addition, the trends of the cobalt disribution into the ingot and the slag depended on the kind of slag former used in the melting of the stainless steel, while the effect of the slag basicity on the distribution of the cobalt was not clarified in the melting of carbon steel. In the melting of the stainless steel, only 20% of the strontium remained in the slag phase, and it was barely present in the ingot. In the melting of the carbon steel, however, strontium was captured at up to 50% into the slag phase. Cesium was completely eliminated from the melt of the stainless steel, as well as the carbon steel, and was distributed to the dust phase.

Keywords:metal melting;nuclide distribution;arc furnace;basicity index

[References]

Nieves LA, Tilbrook RW, Radwaste Mag., January, 45 (1996)
Choi WK, Song PS, Min BY, Kim HI, Jung CH, Oh WZ, KAERI/AR-716/2004, Korea Atomic Energy Research Institute (2004)
Hamm M, Kreh R, Quade U, Safewaste 2000, 1, 995 (2000)
Adams V, Murphie W, Gresalfi M, Safewaste 2000, 1, 115 (2000)
Hopkinson KL, Bishop A, Cross MT, Harrison J, Selgas, Nuclear safety and the environment, European Commission, EUR 18041 EN (1998)
Grabener KH, Beyer H, Westermann H, Proc. of Technical Seminar on Melting and Recycling of Metallic Waste Materials from Decommissioning of Nuclear Installations, K. Pflugrad and D. Hofman Eds., pp.209-224, Krefeld, Germany (1993)
Worcester SA, Twidwell LG, Paolini DJ, Meldon TA, Mizia RE, WINCO-1198, Westing-house Idaho Nuclear Company, Idaho Falls, Idaho (1994)
Buckentin JM, Damkroger BK, Schlienger ME, SAND 96-0902 (1996)
Park HS, Kim SJ, J. Ind. Eng. Chem., 11(5), 657 (2005)
Joanna MB, Brian KD, Eric Schlinenger M, SAND 96-0902, Category UC-704 (1998)
Worcester SA, Mizia RE, INEL-96/0146 (1996)
Uda T, Iba H, Tsuchiya H, Nucl. Technol., 73, 109 (1986)
Sappok M, Lukacs G, Ettemeyer A, Proc. Decommissioning of Nuclear Installations, K. Pflugarad, R. Bisci, B. Huber, and E. Skupinski Eds., pp.482-493 Brussels, Belgium (1989)
Reimann GA, EGG-WTD010056, Idaho National Engineering Laboratory (1992)
Worcester SA, Twidwell LG, Paolini DJ, Weldon TA, Mizia RE, WINCO-1138 (1993)
Kvist LS, ISIJ International, 41, 1429 (2001)
Harvey DS, EUR-12605, Commission of European Communities (1990)
Gomer CR, Lambley JT, EUR-10188, Commission of European Communities (1985)

[Referenced By]

[Related Articles]

[1] Nieves LA, Tilbrook RW, Radwaste Mag., January, 45 (1996)

[2] Choi WK, Song PS, Min BY, Kim HI, Jung CH, Oh WZ, KAERI/AR-716/2004, Korea Atomic Energy Research Institute (2004)

[3] Hamm M, Kreh R, Quade U, Safewaste 2000, 1, 995 (2000)

[4] Adams V, Murphie W, Gresalfi M, Safewaste 2000, 1, 115 (2000)

[5] Hopkinson KL, Bishop A, Cross MT, Harrison J, Selgas, Nuclear safety and the environment, European Commission, EUR 18041 EN (1998)

[6] Grabener KH, Beyer H, Westermann H, Proc. of Technical Seminar on Melting and Recycling of Metallic Waste Materials from Decommissioning of Nuclear Installations, K. Pflugrad and D. Hofman Eds., pp.209-224, Krefeld, Germany (1993)

[7] Worcester SA, Twidwell LG, Paolini DJ, Meldon TA, Mizia RE, WINCO-1198, Westing-house Idaho Nuclear Company, Idaho Falls, Idaho (1994)

[8] Buckentin JM, Damkroger BK, Schlienger ME, SAND 96-0902 (1996)

[9] Park HS, Kim SJ, J. Ind. Eng. Chem., 11(5), 657 (2005)

[10] Joanna MB, Brian KD, Eric Schlinenger M, SAND 96-0902, Category UC-704 (1998)

[11] Worcester SA, Mizia RE, INEL-96/0146 (1996)

[12] Uda T, Iba H, Tsuchiya H, Nucl. Technol., 73, 109 (1986)

[13] Sappok M, Lukacs G, Ettemeyer A, Proc. Decommissioning of Nuclear Installations, K. Pflugarad, R. Bisci, B. Huber, and E. Skupinski Eds., pp.482-493 Brussels, Belgium (1989)

[14] Reimann GA, EGG-WTD010056, Idaho National Engineering Laboratory (1992)

[15] Worcester SA, Twidwell LG, Paolini DJ, Weldon TA, Mizia RE, WINCO-1138 (1993)

[16] Kvist LS, ISIJ International, 41, 1429 (2001)

[17] Harvey DS, EUR-12605, Commission of European Communities (1990)

[18] Gomer CR, Lambley JT, EUR-10188, Commission of European Communities (1985)