A STUDY ON THE STRUCTURAL BEHAVIOR OF REDUCED PYRITE ASH PELLETS BY XRD and XRF ANALYSIS

机译：X射线衍射和X射线荧光光谱法研究还原黄铁矿粉的结构行为。

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In Turkey, pyrite ash is created as waste from the roasting of pyrite ores in the production of sulfuric acid. These processes generate great amounts of pyrite ash waste that creates serious environmental pollution due to the release of acids and toxic substances. Pyrite ash waste can be used in the iron production industry as a raw material because of its high Fe_2O_3 concentration. The aim of this study was to investigate the reduction behavior of pyrite ash pellets. Pyrite ashes samples were pelletized dried at 105~(0C) for 24 hours and sintered at 1200 ℃ for 30 minutes then reduced in a pressure of 4 atmospheres under argon gas. The mineralogical transformations that occurred during reduction were analyzed by X-ray diffraction and X-ray fluorescence. The iron was successfully reduced to metallic iron phase in a laboratory-scale electric arc furnace.

机译：在土耳其，硫酸生产中黄铁矿矿石的焙烧产生了黄铁矿灰作为废物。这些过程会产生大量的黄铁矿灰渣，由于释放酸和有毒物质而造成严重的环境污染。硫铁矿灰渣由于其Fe_2O_3的浓度高而可以用作炼铁业的原料。这项研究的目的是研究黄铁矿灰粒的还原行为。将硫铁矿灰分样品造粒，在105〜（0C）下干燥24小时，然后在1200℃下烧结30分钟，然后在氩气下于4个大气压下减压。通过X射线衍射和X射线荧光分析还原过程中发生的矿物学转变。在实验室规模的电弧炉中，铁已成功还原为金属铁相。

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来源
《The 23rd International Conference on Solid Waste Technology and Management(ICSW 2008)》|2007年|1165-1176|共12页
会议地点 PhiladelphiaPA(US);PhiladelphiaPA(US)
作者
Mehmet Burcing Piskin; Emek Moroydor Derun; Nurcan Tugrul; Ahmet Ekerim;
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作者单位

Y ld z Technical University, Department of Bioengineering, Davutpasa St., N. 127, Esenler, Istanbul, Turkey;

Y ld z Technical University, Department of Chemical Engineering, Davutpasa St., N. 127, Esenler, Istanbul, Turkey;

Y ld z Technical University, Department of Chemical Engineering, Davutpasa St., N. 127, Esenler, Istanbul, Turkey;

Y ld z Technical University, Department of Metallurgical and Materials Engineering, Davutpasa St., N. 127, Esenler, Istanbul, Turkey;

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原文格式 PDF
正文语种 eng
中图分类固体废物的处理与利用;
关键词
iron ore; agglomeration; pyrometallurgy; reduction;

机译：铁矿;凝聚;火法冶金减少;

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A STUDY ON THE STRUCTURAL BEHAVIOR OF REDUCED PYRITE ASH PELLETS BY XRD and XRF ANALYSIS

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