유리생산공정 폐주석산화물에서 건식제련에 의한 주석회수기술

Abstract

Abstract Most of the domestic need for tin rely on imports. In this work, a pyrometallurgical process was investigated to recover puretin from the tin oxides in tin bath which results from the production of flat glass and LCD panel. From the results on the effectof reaction temperature, the highest recovery percentage of tin was obtained at 1350 o C. The recovery percentage of tin wasimproved to 88% by employing the first and second smelting step. Electrorefining of the crude tin thus obtained led to pure tinwith purity higher than 99.9%. Key words : Tin oxide, Pyrometallurgy, Tin, Electrorefining, Recovery percentage 1. 서 론 주석은 유리공업, 전기전자 및 철강 산업 등에서 사용되고 있는 전략적인 위치를 차지하는 금속으로 용도가 1)급격히 늘어나고 있다. 국내주석 수요는 전량 수입에 의존하고 있으며, 국내에서 주석함량이 50% 이상인 · Received : December 19, 2014 · Revised : January 9, 2015 · Accepted : January 20, 2015Corresponding Author : Man-Seung Lee (E-mail : mslee@mokpo.ac.kr)Department of Advanced Materials Science & Engineering, Mokpo National University, 61 Dorim-ri, Chungkye-myun, Muan-gun, Chonnam, 534-729, KoreaTel : +82-62-450-2492 / Fax : +82-62-450-2498ⓒThe Korean Institute of Resources Recycling. All rights reserved. This is an open-access article distributed under the termsof the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permitsunrestricted non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited.