应用压块、焙烧方法,结合试样的显微结构及X射线衍射(XRD)分析,在固定的烧结温度与碱度的条件下,研究了不同高磷铁矿配比对烧结试样的显微结构和矿物组成的影响。结果表明:随着高磷铁矿配比的增加,试样的显微结构由非均相结构向均相结构过渡;赤铁矿由粒状转变为熔蚀结构,铁酸钙由板状转变为针状;赤铁矿含量逐渐减少,铁酸钙含量逐渐增多。
Applying agglomerating,roasting method and combined with the microstructure and XRD analysis,the effect of sintering with allocating high-P iron ore on the microstructure and mineral composition was investigated at the conditions of a fixed sintering temperature and alkalinity.The results show that: with the increasing proportion of high-P iron ore,microstructure of samples has a transition from the non-homogeneous structure to the homogeneous structure,granular structure of hematite changes into the melting structure,calcium ferrate changes from slat into acicular,hematite content decreases while calcium ferrate increases.
参考文献
[1] | 杨龙 .铁精矿选矿降磷工艺优化研究[D].西安建筑科技大学,2003. |
[2] | 洪家凯.采用磁选工艺改善梅山铁矿铁精矿的质量[J].矿冶工程,1997(04):28. |
[3] | 纪军.高磷铁矿石脱磷技术研究[J].矿冶,2003(02):33-37. |
[4] | 卢尚文;张邦家;熊道仁.宁乡式胶磷铁矿用解胶浸矿法降磷的研究[J].金属矿山,1994(08):30. |
[5] | CHENG C Y;Misra V N;Clough J et al.Dephosphorisation of Western Australian Iron Ore by Hydrometallurgieal Process[J].Minerals Engineering,1999,12(09):1083. |
[6] | 李艳茹,周明顺,翟立委,汪琦.褐铁矿用于烧结的试验研究[J].烧结球团,2005(01):4-7. |
[7] | 杨李香;吕振英;J敖滋沃 .用磁铁矿生产非均相烧结矿的研究[J].钢铁,1990,25(08):1. |
[8] | 郭兴敏,朱利,李强,沈红标,周明顺.高碱度烧结矿的矿物组成与矿相结构特征[J].钢铁,2007(01):17-19,49. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%