Method for the recovery of actinides and/or lanthanides using no

Details Method for the recovery of actinides and/or lanthanides using no Method for the recovery of actinides and/or lanthanides using no

1988-06-08

1990-07-03

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

564160, B01D 1104

Patent

active

049388711

ABSTRACT:
The invention relates to the preparation and use of novel extracting agents and novel propane diamides for the recovery of actinides and/or lanthanides.
These extracting agents are constituted by propane diamides of formula: ##STR1## For example, the extracting agent can be 2-hexyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide or 2-ethoxyethyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide.
They are more particularly used for the recovery of actinides and/or lanthanides present in the trivalent state in an acid aqueous solution, particularly in a nitric solution.

REFERENCES:
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patent: 4572802 (1986-02-01), Hubert et al.
patent: 4770807 (1988-09-01), Musikas et al.
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Chemical Abstracts, vol. 91, No. 20, Nov. 12, 1979, p. 398, No. 163698b, Columbus, Ohio, C. Pohlandt et al.: "Extraction of Metal Ions from Chlorine Solution with N,N-Dioctylacetamide" & Talanta 1979, 26(5), 395-9.
Chemical Abstracts, vol. 94, 1981, p. 419, No. 21894a, Columbus, Ohio, G. M. Gasparini et al.: "Application of N,N-Dialkyl Aliphatic Amides in the Separation of Some Actinides" & Sep. Sci. Technol. 1980, 15(4), 825-44.
Chemical Abstracts, vol. 72, 1970, p. 385, Reg. No. 36404k, Columbus, Ohio, V. S. Schmidt et al., "Extraction of Various Actinide Elements from Nitric Acid Solutions by N,N-dialkylacetamides" & Radiokhimiya 1969, 11(5), 593.5.
Hydrometallurgy, vol. 8, No. 4, Jul. 1982, pp. 379-388, Elsevier Scientific Publishing Company, Amsterdam, NL; Zhou Taili et al., "The Amide Type Extractant A101 and its Application to the Separation of Niobium and Tantalum, and Molybdenum and Rhenium".
Chemical Abstracts, vol. 94, 1981, p. 422, No. 145962r, Columbus, Ohio, V. Jedinakova et al., "The Extraction of Lanthanides and Americium by Benzyldialkyl Amides and Benzyltrialkylammonium Nitrates from the Nitrate Solutions; Structure and Aggregation of Their Salts"; & Int. Solvent Extr. Conf. 1980, 1 Paper 80-185, 8 pages.
Chemical Abstracts, vol. 94, 1981, p. 421, No. 21916j, Columbus, Ohio; G. M. Gasparini et al.: "N,N-Dialkyl Substituted Aliphatic Amides as Extractants for Actinides and Fission Products: Preparation and Extractive Properties of N,N-di-n-butyl-2-Ethylhexanimide and N,N-di-n-Hexyloctanamide".
Chemical Abstracts, vol. 89, 1978, pp. 454, No. 136514r, Columbus, Ohio, B. N. Laskorin et al.: "Extraction of Uranium and Transuranium Elements by Carboxylic Acid Amides", & Radiokhimiya 1978, 20(4), 511-18.
Chemical Abstracts, vol. 83, 1975, p. 553, No. 172086n, Columbus, Ohio, J. S. Fritz et al.: "Extraction of Metal Ions with N,N-disubstituted Amides" & Anal. Chem. 1975, 47(12), 2043-5.

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