EXTRACTION OF ZIRCONIUM AND HAFNIUM FROM NITRIC AND HYDROCHLORIC ACID SOLUTIONS BY n-TRI-BUTYL PHOSPHATE

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

OSTI ID:4701343

Reznik, A M; Rozen, A M; Korovin, S S; Apraksin, I A

Distribution and separation coefficients of Zr and Hf extraction by TBP are studied as functions of the metal concentration relative to the concentration of nitric and hydrochloric acids. The extraction of macroquantities of Zr and Hf from nitric acid and hydrochloric acid and mixed solutions was investigated at Zr concentration to 0.5M and Hf to 0.18M. It was found that with an increased metal concentrations the extraction constants diminish (especially in strong nitric solutions) because of polymerization. Polymerization constants were estimated. Replacement of nitric acid by hydrochloric acid enhances Zr distribution constants to a maximum and for Hf the replacement of nitric acid by hydrochloric depresses the extraction. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-025365
• OSTI ID: 4701343
• Journal Information: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.), Journal Name: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.) Vol. Vol: 5; ISSN RADKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BUTYL PHOSPHATES
CHEMISTRY
DISTRIBUTION
HAFNIUM
HYDROCHLORIC ACID
NITRIC ACID
POLYMERIZATION
QUANTITY RATIO
SOLUTIONS
SOLVENT EXTRACTION
ZIRCONIUM