矿产保护与利用Issue(2)：52-56,62,6.DOI:10.13779/j.cnki.issn1001-0076.2018.02.010
高磷鲕状赤铁矿深度还原过程中磷灰石还原热力学研究
Thermodynamic Study of Apatite Reduction in Coal-based Reduction of High Phosphorus Oolitic Hematite Ore
摘要
Abstract
A high-phosphorus oolitic hematite ore contains 1.31% phosphorus, which exists in the form of apatite. Thermodynamic analysis, analog calculation, and experimental verification methods were used to study the reduction behavior of apatite in the ore. The results showed that the apatite in oolitic hematite ore could be reduced at the predetermined temperatures,and the partici-pation of oxides in reduction reaction decreased the initial reaction temperature. Increasing the tem-perature and C/O molar ratio or extending the reduction time were in favor of apatite. The reduction degree of apatite reached 78.57% when the high-phosphorus oolitic hematite ore was reduced at 1 548 K with a C/O molar ratio of 2.0 and 50 min reduction. The above research will provide guid-ance for the selection of the phosphorus transformation in coal-based reduction of high-phosphor-us oolitic hematite ore.关键词
鲕状赤铁矿/磷灰石/深度还原/热力学Key words
oolitic hematite ore/apatite/coal-based reduction/thermodynamic分类
矿业与冶金引用本文复制引用
赵立鹏,李国峰,张涛,杨含蓄,白丽梅..高磷鲕状赤铁矿深度还原过程中磷灰石还原热力学研究[J].矿产保护与利用,2018,(2):52-56,62,6.基金项目
华北理工大学大学生创新创业训练计划项目(NO.X2017089) （NO.X2017089）
河北省科技计划项目(NO.16211506) （NO.16211506）
