Download or read book Properties and Cleanup of Degraded Tributyl Phosphate Amsco Solutions and the Relative Stabilities of Alternative Extractant diluent Systems written by C. A. Blake (Jr.) and published by . This book was released on 1963 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Purification of Degraded Tributyl Phosphate hydrocarbon Diluent Solutions by Distillation written by Wallace Davis and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reports Received by Division of Technical Information Extension written by U.S. Atomic Energy Commission. Division of Technical Information and published by . This book was released on with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications Reports and Papers for 1961 from Oak Ridge National Laboratory written by Oak Ridge National Laboratory and published by . This book was released on 1964 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Technology Division Annual Progress Report for Period Ending written by Oak Ridge National Laboratory. Chemical Technology Division and published by . This book was released on 1964-05 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atomindex written by International Atomic Energy Agency and published by . This book was released on 1964 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Fission Products written by International Atomic Energy Agency and published by . This book was released on 1967 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliographical Series written by International Atomic Energy Agency and published by . This book was released on 1967 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Alternate Extractants to Tributyl Phosphate Phase I written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary evaluations have indicated that tri(n-hexyl) phosphate (THP) and tri(2-ethylhexyl) phosphate (TEHP) have some significant advantages over tri(n-butyl) phosphate (TBP) for fuel reprocessing although they also have some disadvantages. The longer alkyl chains in these new extractants decrease their aqueous phase solubility and increase the organic phase solubility of their metal complexes and the metal complexes of their degradation products. Both THP and TEHP extract uranium and plutonium more strongly than TBP; thorium extraction is in the order THP> TBP> TEHP. Tritium extraction is highest with TBP because of slightly higher water extraction. In extractions of thorium, a third liquid phase was formed using TBP at a solvent loading of about 40 g/L of thorium and above. Third-phase formation did not occur with THP or TEHP. The dialkyl phosphoric acid degradation products of THP and TEHP showed a markedly lower tendency to precipitate with thorium than did dibutyl phosphoric acid (HDBP). Chemical stability studies showed TEHP to have much greater stability to acid hydrolysis than TBP and THP, which were about equivalent. No differences were detected in the radiation stability of the three extractants. The phase separation properties of THP and TEHP are inferior to those of TBP in both the nitric acid and sodium carbonate (solvent wash) systems. Phase separation was improved appreciably by using a lower extractant concentration than 1.09 M (equivalent to 30 vol % TBP). Difficulties were encountered with TEHP, however, owing to rapid degradation of its phase separation properties with time of contact with HNO3; this problem requires additional study.
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1964 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SURVEY OF RECENT DEVELOPMENTS IN SOLVENT EXTRACTION WITH TRIBUTYL PHOSPHATE written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tributyl phosphate can be used for extraction in processing all current power reactor fuels. Nitric acid is the only salting agent required. Typical flowsheets are presented. In aluminum nitrate systems which are more than 0.1 M acid deficient, the uranium distribution coefficient is a function of pH and independent of aluminum concentration; the coefficient remains constant at one in fluoride systems when the nitrate to fluoride ratio is approximates 3.5. Many objectionable properties of degraded diluents are ascribed to nitroparaffins. Aliphatic diluents with the least branching are the most stable to nitration. The nitration stability of aromatic diluents varies with structure, e.g., stabilities of diethylbenzenes decrease as meta” ortho> para. Solvent purification by flash distillation appears superior to other methods. The stability of Amsco 125-82 was permanently improved by treatment with sulfuric acid. The radiation stability of TBP was approximates 2 times higher in an aromatic diluent than in Amsco 125-82. The G decomposition value for 1 M TBP in Amsco alone was approximates 0.9; whereas in 1 to 3 M HNO3 it was 1 to 5 and G ( --HNO3 org phase) was 3 to 20. Variation of uranium--thorium separation factors with structure of some neutral organophosphorus reagents is presented. Basic studies include measurement of activities in multicomponent solutions and description of aqueous activity coefficients by an extended Debye- Huckel equation. (auth).
Download or read book List of References on Nuclear Energy written by International Atomic Energy Agency and published by . This book was released on 1964 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tributyl Phosphate hydrocarbon Diluent Repurification in Radiochemical Processing at ORNL written by Wallace Davis (Jr.) and published by . This book was released on 1960 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Method for Improving the Extraction Properties of a Tributyl Phosphate Solution written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for improving the extraction properties of a tributyl phosphate extractant used for reprocessing irradiated nuclear reactor fuel (Purex Process) containing degradation products of tributyl phosphate by contacting the extractant with diazomethane in a suitable solvent whereby the degradation products are esterified to triester phosphates which have extraction properties similar to those of tributyl phosphate.
Download or read book Publications Reports and Papers written by Oak Ridge National Laboratory and published by . This book was released on 1963 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PURIFICATION OF DEGRADED TRIBUTYL PHOSPHATE HYDROCARBON DILUENT SOLUTIONS BY DISTILLATION written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
