Removal of dissolved actinides from alkaline solutions by the method of appearing reagents

Krot, Nikolai N; Charushnikova, Iraida A

Title: Removal of dissolved actinides from alkaline solutions by the method of appearing reagents

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Abstract

A method of reducing the concentration of neptunium and plutonium from alkaline radwastes containing plutonium and neptunium values along with other transuranic values produced during the course of plutonium production. The OH.sup.- concentration of the alkaline radwaste is adjusted to between about 0.1M and about 4M. [UO.sub.2 (O.sub.2).sub.3 ].sup.4- ion is added to the radwastes in the presence of catalytic amounts of Cu.sup.+2, Co.sup.+2 or Fe.sup.+2 with heating to a temperature in excess of about 60.degree. C. or 85.degree. C., depending on the catalyst, to coprecipitate plutonium and neptunium from the radwaste. Thereafter, the coprecipitate is separated from the alkaline radwaste.

Inventors:

Krot, Nikolai N ^[1]; Charushnikova, Iraida A ^[2]

Chelomiya St., 2, Apartment 15, Moscow, RU
Svoboda St., Bldg. 7A, Apartment 15, Moscow, RU

Issue Date:: 1997-01-01

Research Org.:: Russian Federation of Atomic Energy

OSTI Identifier:: 871008

Patent Number(s):: 5640668

Assignee:: Krot, Nikolai N. (Chelomiya St., 2, Apartment 15, Moscow, RU);Charushnikova, Iraida A. (Svoboda St., Bldg. 7A, Apartment 15, Moscow, RU)

Patent Classifications (CPCs):: C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G56/00 - Compounds of transuranic elements

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: removal; dissolved; actinides; alkaline; solutions; method; appearing; reagents; reducing; concentration; neptunium; plutonium; radwastes; containing; values; transuranic; produced; course; production; oh; radwaste; adjusted; 1m; 4m; uo; 4-; added; presence; catalytic; amounts; cu; heating; temperature; excess; 60; degree; 85; depending; catalyst; coprecipitate; thereafter; separated; wastes containing; alkaline solutions; alkaline solution; catalytic amount; containing plutonium; transuranic values; /423/588/

Citation Formats


                    Krot, Nikolai N, and Charushnikova, Iraida A. Removal of dissolved actinides from alkaline solutions by the method of appearing reagents.  United States: N. p., 1997. 
        Web.

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                    Krot, Nikolai N, & Charushnikova, Iraida A. Removal of dissolved actinides from alkaline solutions by the method of appearing reagents.  United States.

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                    Krot, Nikolai N, and Charushnikova, Iraida A. Wed .  
        "Removal of dissolved actinides from alkaline solutions by the method of appearing reagents".  United States.  https://www.osti.gov/servlets/purl/871008.

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@article{osti_871008,

  title        = {Removal of dissolved actinides from alkaline solutions by the method of appearing reagents},

  author       = {Krot, Nikolai N and Charushnikova, Iraida A},

  abstractNote = {A method of reducing the concentration of neptunium and plutonium from alkaline radwastes containing plutonium and neptunium values along with other transuranic values produced during the course of plutonium production. The OH.sup.- concentration of the alkaline radwaste is adjusted to between about 0.1M and about 4M. [UO.sub.2 (O.sub.2).sub.3 ].sup.4- ion is added to the radwastes in the presence of catalytic amounts of Cu.sup.+2, Co.sup.+2 or Fe.sup.+2 with heating to a temperature in excess of about 60.degree. C. or 85.degree. C., depending on the catalyst, to coprecipitate plutonium and neptunium from the radwaste. Thereafter, the coprecipitate is separated from the alkaline radwaste.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

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