引用本文:
郑晓虹, 陈力勤, 沈霖霖, 陈震. 硫铁矿渣中提取铁及其在纳米α-FeOOH制备中的应用[J]. 应用化学,
2003, 20(9): 871-874.
Citation: ZHENG Xiao-Hong, CHEN Li-Qin, SHEN Lin-Lin, CHEN Zhen. Preparation of Nanocrystalline α-FeOOH from Fe2+ Extracted from Pyrite Cinder by Reduction Roasting method[J]. Chinese Journal of Applied Chemistry, 2003, 20(9): 871-874.
Citation: ZHENG Xiao-Hong, CHEN Li-Qin, SHEN Lin-Lin, CHEN Zhen. Preparation of Nanocrystalline α-FeOOH from Fe2+ Extracted from Pyrite Cinder by Reduction Roasting method[J]. Chinese Journal of Applied Chemistry, 2003, 20(9): 871-874.
硫铁矿渣中提取铁及其在纳米α-FeOOH制备中的应用
English
Preparation of Nanocrystalline α-FeOOH from Fe2+ Extracted from Pyrite Cinder by Reduction Roasting method
Abstract:
The Fe2+ was extracted from pyrite cinder by reduction roasting method and transformed into FeSO4 as a precursor to make α-FeOOH. The crystal nucleus of α-FeOOH was prepared in a neutral solution (pH:6~7) of FeSO4(0.15~0.25 mol/L) and Na2CO3(n(Na2CO3):n(FeSO4)=1:1). In order to maintain a proper oxidizing rate of Fe2+ the pH value of the solution has been acicular in the range of 4~5 by dropping Na2CO3 solution. A uniform needle crystal of α-FeOOH has been obtained with width 30~40 nm and length about 250 nm.
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Key words:
- pyrite cinder
- / nano α-FeOOH
- / carbonate route
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