Utilization of ashes obtained from leather shaving incineration as a source of chromium for the production of HC-FeCr alloy

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• 作者：Claudia Rosane Alves ^{claudia.alves@ufrgs.br} ; Pedro Jorge Walburga Keglevich de Buzin ^{pedrobuzin@terra.com.br} ; Nestor Cezar Heck ^{heck@ufrgs.br} ; Ivo André ; Homrich Schneider ; ^{ivo.andre@ufrgs.br}
• 关键词：Chromium oxide ; Leather wastes ; Pyrometallurgy ; Wasteprocessing ; Recycling
• 刊名：Minerals Engineering
• 出版年：2012
• 期刊代码：130_08926875
• 类别：et
• 出版时间：March, 2012
• 卷：29
• 期：Complete
• 页码：124-126
• 文件大小：130 K

摘要

This study is aimed at presenting the possibility of recycling chromium contained in ashes from leather shaving incineration (ALSI) and indicating its utility as raw material for the production of commercial high carbon ferrochrome alloy (HC-FeCr). Initially, a thermodynamic analysis was carried out for simulating the process of chromium oxide reduction to provide the basis and the most favorable conditions for the experiments. At the laboratory level, experiments were performed to demonstrate the feasibility of using chromium bearing ashes for the production of HC-FeCr alloy. The results demonstrated the possibility of producing HC-FeCr alloy from the ALSI by carbothermal reduction at a temperature of 1600 掳C.