自然科学版 英文版
自然科学版 英文版
自然科学版 英文版
自然科学版 英文版
英文版编委
自然科学版 英文版
英文版首届青年编委

您目前所在的位置:首页 - 期刊简介 - 详细页面

中南大学学报(自然科学版)

Journal of Central South University

第49卷    第11期    总第291期    2018年11月

[PDF全文下载]    [Flash在线阅读]

    

文章编号:1672-7207(2018)11-2649-07
铜吹炼转炉渣主要元素分布及其矿相特征
杜柯,王成彦,王玲

(北京科技大学 冶金与生态工程学院,北京,100083)

摘 要: 通过X线衍射分析、化学物相分析、化学多元素分析等方法,并结合显微镜观测,研究铜吹炼转炉渣中主要元素分布规律及其矿相的产出特征。研究结果表明:赞比亚谦比希铜冶炼公司的铜吹炼转炉渣中的铁、铜和钴质量分数较高,质量分数分别为47.84%,3.60%与2.52%;80.94%的铜以金属态存在,12.71%以硫化态存在;钴与铁主要呈氧化态富集,钴在磁铁矿相与铁橄榄石相中的质量分数分别为40.71%和49.35%,而铁质量分数分别为56.34%,41.94%;转炉渣中主要物相为铁橄榄石相与磁铁矿相,质量分数分别为47.50%与38.91%;含铜物相主要为金属铜相与辉铜矿相,质量分数分别2.64%与1.17%;此外,渣中含有9.78%的玻璃相。铁橄榄石相与磁铁矿相相互包裹、夹杂,构成渣的基底物相;辉铜矿相、金属铜相及玻璃相夹杂在磁铁矿、铁橄榄石晶粒间,或被二者包裹;钴与铁元素的面分布一致,铁与氧、硅元素的面分布均一致,铜与硫元素的面分布一致。

 

关键词: 铜吹炼转炉渣;化学物相分析;矿相特征;面分布

Distribution of main elements and phase characteristics of copper converter slag
DU Ke, WANG Chengyan, WANG Ling

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Abstract:The distribution rule of main elements and phase characteristics of copper converter slag were studied by using methods of X-ray diffraction analysis, chemical phase analysis, chemical multielement analysis, combined with microscopic observation. The results show that copper converter slag from the Chambishi Copper Smelter has high mass fractions of iron, copper and cobalt, which are 47.84%, 3.60% and 2.52%, respectively. There exists 80.94% of Cu in the slag in the form of metallic state, and 12.71% in the form of Vulcanized state. Co and Fe mainly exist in the form of oxidation state, and the mass fractions of Co in magnetite and fayalite are 40.71% and 49.35%, respectively, while that of Fe are 56.34% and 41.94%, respectively. The main phases of the slag are fayalite and magnetite, with their mass fractions being 47.50% and 38.91%, respectively. The main copper-bearing phases are metallic copper and chalcocite, the mass fractions of which are 2.64% and 1.17%, respectively. Additionally, 9.78% of glass phase also exists in the slag. Fayalite is mixed with the magnetite and forms the basement phase. The metallic copper, chalcocite and glass phase are mingled inside the grains of fayalite and magnetite, or coated by them. The surface distribution of cobalt is basically the same with that of iron. The surface distribution of iron is basically the same with that of oxygen and silicon, and so is the surface distribution of copper with that of sulfur.

 

Key words: copper converter slag; chemical phase analysis; phase characteristic; surface distribution

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
版权所有:《中南大学学报(自然科学版、英文版)》编辑部
地 址:湖南省长沙市中南大学 邮编: 410083
电 话: 0731-88879765(中) 88836963(英) 传真: 0731-88877727
电子邮箱:zngdxb@csu.edu.cn 湘ICP备09001153号