Quantitative Zn speciation in zinc-containing steelmaking wastes by X-ray absorption spectroscopy
Quantitative Zn speciation in zinc-containing steelmaking wastes by X-ray absorption spectroscopy
复制标题
X 射线吸收光谱法定量含锌炼钢废料中的锌形态
DOI：
10.1039/c2ja30094j
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发表时间：
2012-10
影响因子：
3.4
通讯作者：
黄宇营
中科院分区：
文献类型：
--
作者：
汪丽华;陆晓明;魏向军;姜政;顾颂琦;高倩;黄宇营
为防止含锌炼钢废弃物的不当处理，并为这些材料的回收找到更好的解决方案，同步辐射诱导X射线吸收光谱（XAS）被用于在原子层面定量测定锌的化学形态。
To prevent improper handling of zinc-containing steelmaking wastes and find better solutions for recycling these materials, synchrotron induced X-ray absorption spectroscopy (XAS) was used to determine the chemical form of zinc quantitatively at the atomic scale. Five types of zinc-containing steelmaking wastes generated during the production of carbon steel in blast furnace, basic oxygen furnace and blast furnace were collected. In dust collected from the gas-cleaning system of electric arc furnace (EAFD) and basic oxygen furnace developed by Lurgi and Thyssen companies (BOF LT), zinc existed predominantly as franklinite phase (ZnFe2O4). The presence of Zn-O, Zn-Fe, Zn-Zn bonds in the nearest two coordination shells were observed. In off gas sludge generated in basic oxygen furnace (BOF OG), three main types of zinc species were identified: Zn-5(CO3)(2)(OH)(6), ZnFe2O4 and ZnSO4 center dot 7H(2)O. Zn-O and Zn-Zn bonds occurred in the nearest two coordination shells. Blast furnace dust (BFD) comprised about 39% soluble phase in the form of ZnCl2 and 61% insoluble phase in the form of ZnFe2O4. In blast furnace sludge (BFS), ZnCl2 was also obtained as the soluble phase and the insoluble phase was zinc silicate possibly in the form of ZnSiO3. These findings deepened our understanding of zinc speciation contained in zinc-containing steelmaking wastes and provided the fundamental information for better dealing with this kind of metallurgical residues.
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DOI：
10.1107/s0365110x64002651
发表时间：
1964-01-01
期刊：
ACTA CRYSTALLOGRAPHICA
影响因子：
--
作者：
GHOSE, S
通讯作者：
GHOSE, S
影响因子：
11.4
作者：
Ford, RG;Sparks, DL
通讯作者：
Sparks, DL
影响因子：
13.6
作者：
Nathalie Leclerc;Eric Meux;J. Lecuire
通讯作者：
Nathalie Leclerc;Eric Meux;J. Lecuire
影响因子：
8.8
作者：
M. Takaoka;Takashi Yamamoto;A. Shiono;N. Takeda;K. Oshita;Tadao Matsumoto;Tsunehiro Tanaka
通讯作者：
M. Takaoka;Takashi Yamamoto;A. Shiono;N. Takeda;K. Oshita;Tadao Matsumoto;Tsunehiro Tanaka
影响因子：
2.5
作者：
Ravel, B;Newville, M
通讯作者：
Newville, M