Recovery Of Valuable Metals In Tin-Based Anodic Slimes By Carbothermic Reaction

Archives of Metallurgy and Materials

Chulwoong Han¹  Tae Bum Kim¹  Hanshin Choi¹  Young-Min Kim¹  Yong Hwan Kim¹  Seong Ho Son¹ 

[1]INCHEON REGIONAL DIVISION (KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, INCHEON, KOREA)

关键词: Keywords: Tin;    anodic slime;    carbothermic reduction;    carbon;    recovery;   

DOI  :  10.1515/amm-2015-0100

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

This study investigated the recovery of anodic slimes by carbothermic reaction in the temperature range of 973~1,273K and amount of carbon as a function of time. Tin anodic slime samples were collected from the bottom of the electrolytic cells during the electro-refining of tin. The anodic slimes are consisted of high concentrated tin, silver, copper and lead oxides. The kinetics of reduction were determined by means of the weight-loss measurement technique. In order to understand in detail of carbothermic reaction, thermodynamic calculation was carried out and compared with experiments. From thermodynamic calculation and experiment, it was confirmed that Sn-based anodic slime could be reduced by controlling temperature and amount of carbon. However, any tendency between the reduction temperature and carbon content for the reduction reaction was not observed.

【 授权许可】

Unknown