# 폐전선으로부터 유가자원 회수를 위한 저온열분해(I)

• Han, Seong-Kuk (Department of Environmental Engineering, Chungbuk University) ;
• Kim, Jae-Yong (Department of Environmental Engineering, Chungbuk University)
• Accepted : 2009.03.09
• Published : 2009.04.10

#### Abstract

In this study, we investigated the recovery of copper and synthetic fuel from the waste wire by low temperature pyrolysis which can overcome problems of the recent incineration methods. Through thermal decomposition process of waste wire, we achieved the big advantage of getting usable resources as the forms of copper and fuel with a very high value. The TG/DTA and small-scale reaction experiments were carried out to determine an optimum temperature for waste wire pyrolysis. And the pyrolysis was done at 350, 450, and $550^{\circ}C$, respectively, and heating rate of the TG/DTA was $5^{\circ}C/min$ untill $700^{\circ}C$. The result shows that the optimum temperature range for dehydrochlorination of PVC was $280{\sim}350^{\circ}C$, as a lower temperature range than $400{\sim}550^{\circ}C$ of PE and PP. Practically over 95% of copper metal and synthetic fuel, which has the 8027 kcal/kg as a calorific value, were recovered from the waste wire samples.

#### Acknowledgement

Supported by : 충북대학교

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