铜渣碳热还原改性对Cu、S在铁中溶解行为影响

铜渣碳热还原改性对Cu、S在铁中溶解行为影响

TD989%TF09; 水淬铜渣中的铁以硅酸盐的形式赋存,为实现Fe、 Si及其他有价元素的分离,提出采用含碳球团法对水淬铜渣进行碳热还原改性.通过研究还原温度、配碳量、还原时间对铜渣的物相转变、铁硅分离、铜硫在铁中溶解行为的影响,优化得出较佳工艺参数.结果 表明:随着温度升高,铜渣中的铁橄榄石逐渐被还原,还原物相为金属Fe和SiO2;同时铁橄榄石还原分解产生的Fe会不断迁移聚集成较大晶粒并与Si逐渐分离.但配碳量过高、反应时间过长均不利于金属铁晶粒长大;在还原改性过程中Cu、S元素会部分溶解进入金属Fe中,其中Cu与Fe可以无限互溶,S在Fe中溶解度几乎为0;较佳工艺参数为反应温度1200℃...

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Published in:矿产综合利用 no. 2; pp. 44 - 48
Main Authors: 魏志芳, 赵凯, 张巧荣, 师学峰, 纪海健, 宫晓然, 邢宏伟
Format: Journal Article
Language:Chinese
Published: 华北理工大学冶金与能源学院,河北唐山063000%泰钢集团,山东莱芜271100%承德应用技术职业学院,河北承德067000 01-04-2021
Subjects:
物相
铁
硫
铜
铜渣
硅
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Abstract TD989%TF09; 水淬铜渣中的铁以硅酸盐的形式赋存,为实现Fe、 Si及其他有价元素的分离,提出采用含碳球团法对水淬铜渣进行碳热还原改性.通过研究还原温度、配碳量、还原时间对铜渣的物相转变、铁硅分离、铜硫在铁中溶解行为的影响,优化得出较佳工艺参数.结果 表明:随着温度升高,铜渣中的铁橄榄石逐渐被还原,还原物相为金属Fe和SiO2;同时铁橄榄石还原分解产生的Fe会不断迁移聚集成较大晶粒并与Si逐渐分离.但配碳量过高、反应时间过长均不利于金属铁晶粒长大;在还原改性过程中Cu、S元素会部分溶解进入金属Fe中,其中Cu与Fe可以无限互溶,S在Fe中溶解度几乎为0;较佳工艺参数为反应温度1200℃,碳氧比1.4,反应时间30 min.
AbstractList TD989%TF09; 水淬铜渣中的铁以硅酸盐的形式赋存,为实现Fe、 Si及其他有价元素的分离,提出采用含碳球团法对水淬铜渣进行碳热还原改性.通过研究还原温度、配碳量、还原时间对铜渣的物相转变、铁硅分离、铜硫在铁中溶解行为的影响,优化得出较佳工艺参数.结果 表明:随着温度升高,铜渣中的铁橄榄石逐渐被还原,还原物相为金属Fe和SiO2;同时铁橄榄石还原分解产生的Fe会不断迁移聚集成较大晶粒并与Si逐渐分离.但配碳量过高、反应时间过长均不利于金属铁晶粒长大;在还原改性过程中Cu、S元素会部分溶解进入金属Fe中,其中Cu与Fe可以无限互溶,S在Fe中溶解度几乎为0;较佳工艺参数为反应温度1200℃,碳氧比1.4,反应时间30 min.
Author 纪海健
魏志芳
邢宏伟
宫晓然
赵凯
张巧荣
师学峰
AuthorAffiliation 华北理工大学冶金与能源学院,河北唐山063000%泰钢集团,山东莱芜271100%承德应用技术职业学院,河北承德067000
AuthorAffiliation_xml – name: 华北理工大学冶金与能源学院,河北唐山063000%泰钢集团,山东莱芜271100%承德应用技术职业学院,河北承德067000
Author_FL Xing Hongwei
Wei Zhifang
Gong Xiaoran
Zhang Qiaorong
Shi Xuefeng
Ji Haijian
Zhao Kai
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  fullname: Xing Hongwei
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  fullname: 宫晓然
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  fullname: 邢宏伟
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DocumentTitle_FL Effect of Carbon Thermal Reduction Modification on the Dissolution Behavior of Cu and S in iron
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铁
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铜渣
硅
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Snippet TD989%TF09; 水淬铜渣中的铁以硅酸盐的形式赋存,为实现Fe、 Si及其他有价元素的分离,提出采用含碳球团法对水淬铜渣进行碳热还原改性.通过研究还原温度、配碳量、还原时间对铜渣的物相转变、铁硅分离、铜硫在铁中溶解行为的影响,优化得出较佳工艺参数.结果...
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StartPage 44
Title 铜渣碳热还原改性对Cu、S在铁中溶解行为影响
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