In-Situ XRD studies on the process of hydrogen reduction of Na2CrO4

来源 :The 6th International Conference on Nanoscience and Technolo | 被引量 : 0次 | 上传用户：abc123student

【摘要】

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【作者】

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Shuting Liang Hongling Zhang Minting Luo Yulan Bai Hongbin Xu Yi Zhang

【机构】

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National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology,Institute of Pr

【出处】

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The 6th International Conference on Nanoscience and Technolo

【发表日期】

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2015年5期

【关键词】

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Na2CrO4 hydrogen reduction reduction mechanism in situ XRD

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　　As the hydrogen reduction of Na2CrO4 to Cr(Ⅲ)compounds is a principal step in producing Cr2O3,it is necessary to investigate the mechanism of hydrogen reduction.Using in-situ X-ray diffraction(XRD)and Thermogravimetric analysis(TGA),the mechanism of hydrogen reduction of Na2CrO4 was deeply investigated from 30-700℃.The results showed that Na2CrO4 was directly converted to NaCrO2 and NaOH without forming other intermediates(Cr5+or Cr4+),which is unlike the conversion reaction of K2CrO4.

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In-Situ XRD studies on the process of hydrogen reduction of Na2CrO4

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