Abstract：In the condition of sodium hydroxide saponification, the test results using direction extraction and precipitation of cerium from P507 loading organic phase by oxalic acid solution were studied. Infared (IR) spectrum, X-ray diffraction (XRD), transmission electron microscope (TEM) and thermogravimetry (TG-DSC) were used to study and characterize organic cerium precipitates and the final calcined products. The results showed that organic cerium precipitates and final calcined products were spheric organic cerium coordination and spheric cube CeO2 crystal, respectively, showing their morphologies were successive. IR made out that the structures of organic cerium precipitates and final calcined products were different. TG-DSC indicated that the final calcined products weightlessness was 3.5% and chemical composing was CeO2·1/3H2O.
梅 燕，夏 川，陈晓丽，孙 何，聂祚仁 . 草酸反萃取法直接沉淀负载铈有机相的表征分析[J]. 光谱学与光谱分析, 2011, 31(11): 3083-3086.
MEI Yan, XIA Chuan, CHEN Xiao-li, SUN He, NIE Zuo-ren . Characterization and Analysis of Direction Extraction and Precipitation of Cerium Loading Organic Phase by Oxalic Acid Solution . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 3083-3086.
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