李晶
,
黄克雄
,
陈新民
金属学报
用X射线照相座滴法测量了Cu-Fe-S系冰铜与FeO-CaO-SiO_2-MgO系炉渣之间的界面张力。实验结果的相对误差为5-9％。讨论了1200℃下炉渣中FeO/SiO_2的重量比值、渣中CaO,Fe_3O_4,ZnO及CaF_2含量对渣-锍界面张力的影响,考察了冰铜品位、温度与渣-锍界面张力间的关系。计算了渣-锍系的浮游系数和膜系数,对O,Fe由渣相向冰铜相的传输机理作了探讨。
关键词:
界面张力
,
matte
,
slag
,
sessile drop method
J. Zhang (Department of Metallurgy
,
University of Science and Technology Beijing
,
Beijing 100083
,
China)
金属学报(英文版)
Based on the facts that cations and anions of molten salts and binary basic oxide solid solutions do not separate from each other as well as that the electric conductivities of mattes are greater than that of salts and basic oxide solid solutions, the calculating models of mass action concentrations for binary and ternary mattes involving eutectic have been formulated. The results of calculation agree well with the values measured;this in turn shows that the calculating models can reftect the structural characteristics of the mattes concerned.
关键词:
matte
,
null
,
null
,
null
LI Jing HUANG Kexiong CHEN Xinmin Central South University of Technology
,
Changsha
,
China
金属学报(英文版)
The interfacial tension between FeO-CaO-SiO_2-MgO system slag and Cu-Fe-S system matte was determinated by the X-ray radiograph sessile drop method.The effects of FeO/SiO_2 ratio in the slag,contents of CaO,FeO,ZnO and CaF_2 in the slag on interracial tension and the relation of inter facial tension with the grade of matte and temperature have been studied.The floatation coefficient and film coefficient of slag-matte system has been calculated and the mechanism of the transition of iron and oxygen from slag to matte has also been discussed.
关键词:
interfacial tension
,
null
,
null
,
null
张俊
,
何鹏
,
沈鹏飞
,
高建军
,
王锋
钢铁研究学报
doi:10.13228/j.boyuan.issn1001-0963.20160183
通过考察还原气氛下熔渣与锍相之间的平衡情况,研究了渣-锍两相反应的影响因素及机理,探讨了还原产物的分配规律.结果表明,熔渣碱度提高有利于锍相还原反应的进行,添加CaS抑制锍相的还原.由于锍相成分及密度不同出现分层现象,造成锍相在熔渣中的夹杂损失.CaS与金属铁具有互斥性,当熔渣中CaS质量分数超过0.9%之后,渣相中几乎没有金属铁的存在;在选取的实验条件下,C a S在渣、锍两相的平衡分配比维持在0.5左右.
关键词:
还原气氛
,
熔渣
,
锍
,
CaS
王亲猛
,
郭学益
,
廖立乐
,
田庆华
,
张永柱
中国有色金属学报
通过分析氧气底吹炼铜过程产生的高品位铜锍中Cu、Fe、S、SiO2等组元含量变化趋势,结合冶金过程原理,研究上述各组元造锍行为及组元含量间的映射关系.结果表明:Cu、Fe、S、SiO2等组元在铜锍中的造锍行为具有相互关联性,其中Cu、Fe、S相互之间的关联性较强,Cu-Fe、Cu-S、Fe-S含量之间线性相关系数R2分别为0.96、0.89、0.79,但SiO2与Cu、Fe、S之间的关联性较弱.构造了Cu、Fe、S组元含量复合映射模型,该复合模型预测精确度高于单因素模型的预测精确度,可为生产过程中高品位铜锍多组元含量的精细调控,及熔炼-吹炼过程热量精确分配提供指导.
关键词:
氧气底吹
,
炼铜
,
铜锍
,
预测模型
