矿产综合利用Issue(2)：1-6,6.
难处理金矿的球团包衣焙烧预氧化法研究
A Study on Process of Pellet-Enveloping-Roasting for Pretreating Refractory Gold Concentrate
摘要
Abstract
A novel process of Pellet-Enveloping-Roasting (PER) for pretreating refractory gold concentrate that contain arsenic,sulfur and carbon is investigated in this paper.The thermodynamic data is compiled.The pellet that make up of concentrate and binding agent is covered with the envelope that consist of SO2 and As2O3 sorbent.SO2 and As2O3 can be captured by envelope to form anhydrite and calcium arsenate,non SO2 and As2O3 emissions into the atmosphere,non environmental damage,gas treating facilities are not required.The roasting residues and envelope can be effective separated.The results of PER for gold concentrate indicate that up to 99.99% and 99.98% of arsenic and sulfur can be fixed,74% of roasting residues can be gained by concentrate,more than 91.71% gold extraction can be achieved and 78.63% by conventional roasting oxidation.关键词
难处理金矿/球团/包衣/焙烧分类
矿业与冶金引用本文复制引用
杨强,郭民..难处理金矿的球团包衣焙烧预氧化法研究[J].矿产综合利用,2001,(2):1-6,6.
