ALKYL SULPHOXIDES AS SOLVENTS FOR THE EXTRACTION OF MINERAL ACIDS AND URANYL NITRATE; Ekstrakcja Azotanu Uranylu I Kwasow Mineralnych Sulfotlenkami Alkilowymi
Technical Report
·
OSTI ID:4017231
The results of research on the use of a new group of organic solvents, alkyl sulfoxides, are discussed. Solutions of sulfoxides in organic diluents (CCl/sub 4/, o,m,p-xylene) extract uranyl nitrate from solutions of nitric acid or inextractable nitrates. Di-n-octyl sulfoxide (ST-88) extracts nitric acid well, perchloric acid less so, and hydrochloric (up to 4 M HCl) and sulfuric acid not at all; this makes extractive separation of these acids possible. As a solvent for uranyl nitrate, ST-88 was found to be notably inferior to trioctylphosphine oxide, and somewhat superior to tributyl phosphate. A rapid method was developed for determination of suifoxides in solutions of diluents not extracting nitric acid. ST-88 was found to antagonize extraction with dodecylphosphoric acid (DDPA) of uranium from suifuric acid solutions. Mixtures of trioctylamine and DDPA were found to be antagonistic systems. (auth)
- Research Organization:
- Polish Academy of Sciences. Inst. of Nuclear Research, Warsaw
- NSA Number:
- NSA-15-018132
- OSTI ID:
- 4017231
- Report Number(s):
- PAN-191/IV
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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