CHARACTERISTICS OF BIS(2-ETHYLHEXYL) ORTHOPHOSPHORIC ACID CHROMATOGRAPHIC COLUMN FOR RARE-EARTH SEPARATION
Journal Article
·
· J. Chinese Chem. Soc. (Taiwan)
Separation factors for La, Ce, and Pr were measured precisely on columns of bis(2-ethylhexyl) orthophosphoric acid (DEP) supported on diatomaceous silica made hydrophobic with dimethyldicltlorosilane. Column behavior is related to the properties of DEP when used as a solvent extractart, and the column method is a useful one for studying a solvent extraction system with great precision and reproducibility. Separation factors measured are Ce/ La = 2.8 plus or minus 0.1 and Pr/Ce = 2.7 plus or minus 0.1. The dependence of elution volume on HCl activity was found to be approximately 2.5 power in the range 0.2--0.3 M HCl. (auth)
- Research Organization:
- National Tsing Hua Univ., Hsinchu, Taiwan, China
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-020109
- OSTI ID:
- 4018428
- Journal Information:
- J. Chinese Chem. Soc. (Taiwan), Journal Name: J. Chinese Chem. Soc. (Taiwan) Vol. Vol: 10
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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