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Title: Removal of uranium from aqueous HF solutions

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:
 [1];  [2]
  1. (West Paducah, KY)
  2. (Paducah, KY)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863724
Patent Number(s):
4234555
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
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.
Pulley, Howard, & Seltzer, Steven F. Removal of uranium from aqueous HF solutions. United States.
Pulley, Howard, and Seltzer, Steven F. Tue . "Removal of uranium from aqueous HF solutions". United States. https://www.osti.gov/servlets/purl/863724.
@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}
}

Patent:

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