Removal of uranium from aqueous HF solutions

Title: Removal of uranium from aqueous HF solutions

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Abstract

This invention is a simple and effective method for removing uranium from aqueous HF solutions containing trace quantities of the same. The method comprises contacting the solution with particulate calcium fluoride to form uranium-bearing particulates, permitting the particulates to settle, and separting the solution from the settled particulates. The CaF.sub.2 is selected to have a nitrogen surface area in a selected range and is employed in an amount providing a calcium fluoride/uranium weight ratio in a selected range. As applied to dilute HF solutions containing 120 ppm uranium, the method removes at least 92% of the uranium, without introducing contaminants to the product solution.

Inventors:

Pulley, Howard ^[1]; Seltzer, Steven F ^[2]

West Paducah, KY
Paducah, KY

Issue Date:: 1980-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 863724

Patent Number(s):: 4234555

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B7/197 - {by adsorption}

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
G21F9/12 - by absorption

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DOE Contract Number:: W-7405-ENG-26

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: removal; uranium; aqueous; hf; solutions; simple; effective; method; removing; containing; trace; quantities; comprises; contacting; solution; particulate; calcium; fluoride; form; uranium-bearing; particulates; permitting; settle; separting; settled; caf; selected; nitrogen; surface; range; employed; amount; providing; weight; ratio; applied; dilute; 120; ppm; removes; 92; introducing; contaminants; product; selected range; form uranium; comprises contacting; method comprises; solutions containing; calcium fluoride; weight ratio; bearing particulate; particulate calcium; method comprise; effective method; hf solution; aqueous hf; method removes; hf solutions; trace quantities; /423/210/976/

Citation Formats


                    Pulley, Howard, and Seltzer, Steven F. Removal of uranium from aqueous HF solutions.  United States: N. p., 1980. 
        Web.

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                    Pulley, Howard, & Seltzer, Steven F. Removal of uranium from aqueous HF solutions.  United States.

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                    Pulley, Howard, and Seltzer, Steven F. Tue .  
        "Removal of uranium from aqueous HF solutions".  United States.  https://www.osti.gov/servlets/purl/863724.

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@article{osti_863724,

  title        = {Removal of uranium from aqueous HF solutions},

  author       = {Pulley, Howard and Seltzer, Steven F},

  abstractNote = {This invention is a simple and effective method for removing uranium from aqueous HF solutions containing trace quantities of the same. The method comprises contacting the solution with particulate calcium fluoride to form uranium-bearing particulates, permitting the particulates to settle, and separting the solution from the settled particulates. The CaF.sub.2 is selected to have a nitrogen surface area in a selected range and is employed in an amount providing a calcium fluoride/uranium weight ratio in a selected range. As applied to dilute HF solutions containing 120 ppm uranium, the method removes at least 92% of the uranium, without introducing contaminants to the product solution.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1980},

  month        = {1}

}

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