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:
-
- West Paducah, KY
- Paducah, KY
- Issue Date:
- 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
- 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}
}
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