동(銅) 스래그로부터 유가금속의 회수에 관한 연구

Abstract

동(銅) 스래그로부터 유가금속의 회수에 대하여 연구하엿다.

스래그에 5% carbon을 첨가했을 때 1573K의 반응온도에서 carbothermic reduction에 의한 Cu와 Ni의 최대 회수율을 얻을 수 있었다. 그러나 Cr의 회수율은 carbon의 첨가와 온도의 변화에 큰 영향이 없었다. 또한, 5% carbon에 5%의 CaO를 첨가했을 때 Cu와 Ni의 회수율은 크?? 증가함을 알 수 있었다.

이러한 결과는 A, A, ICP, XRD, SEM-EDX, SEM-WDX 및 화학분석 등에 의해 관찰하였으며, 본 실험에서는 4시간 반을 후 최대 회수율을 얻을 수 있었다.

The recovery of valuable metals was studied with copper slag.

It was obtained the most Cu and Ni recovery when 5% carbon added to slag at 1573K by carbothermic reduction. But, carbon addition and increase of temperature has no effect on the recovery of chromium. Also, Cu and Ni recovery was very increased when 5% CaO added to 5% carbon.

These results were investigated with A. A, ICP, XRD, SEM-EDX, SEM-WDX and wet chemical analysis etc.. In this study we can get the most recovery after 4hours reaction in copper slag.

The recovery of valuable metals was studied with copper slag.

It was obtained the most Cu and Ni recovery when 5% carbon added to slag at 1573K by carbothermic reduction. But, carbon addition and increase of temperature has no effect on the recovery of chromium. Also, Cu and Ni recovery was very increased when 5% CaO added to 5% carbon.

These results were investigated with A. A, ICP, XRD, SEM-EDX, SEM-WDX and wet chemical analysis etc.. In this study we can get the most recovery after 4hours reaction in copper slag.