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含铁烧渣综合利用工艺
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作者 江渝 瞿仁静 《云南冶金》 2009年第3期29-31,共3页
利用陈年土法冶炼遗弃烧渣作原料,采用回转窑生产工艺回收有价金属,生产出含Pb 25.57%、Zn43.74%的氧化铅锌粉,经济效益、环保效益、社会效益极好,符合国家节能减排、循环经济和产业政策。
关键词 含铁烧渣 回转窑 表面冷却器 布袋除尘器
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Influence of sulfur content in raw materials on oxidized pellets 被引量:5
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作者 春铁军 朱德庆 潘建 《Journal of Central South University》 SCIE EI CAS 2011年第6期1924-1929,共6页
The influence of sulfur content in raw materials on oxidized pellets was studied. The results show that most sulfur exists in the form of elementary sulfur in pyrite cinder, and over 95% sulfur is removed in producing... The influence of sulfur content in raw materials on oxidized pellets was studied. The results show that most sulfur exists in the form of elementary sulfur in pyrite cinder, and over 95% sulfur is removed in producing pyrite cinder oxidized pellets. The compressive strength of fired pellets drops from 3 186 N to 2 405 N when the ratio of pyrite cinder increases from 40% to 70% under the conditions of preheating at 900℃ for 9 min and firing at 1 230 ℃ for 15 min. The porosity and microstructures of fired pellets prove that the higher ratio of pyrite cinder is given, and the more holes and cracks are achieved, leading to the better reducibility index (RI) and reduction swelling index (RSI), and the lower compressive strength of fired pellets and the worse reduction degradation index (RDI). 展开更多
关键词 pyrite cinder desulfuration compressive strength POROSITY MICROSTRUCTURES
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