Magnesium fluoride recovery method
Abstract
A method of obtaining magnesium fluoride substantially free from radioactive uranium from a slag containing the same and having a radioactivity level of at least about 7000 pCi/gm. The slag is ground to a particle size of about 200 microns or less. The ground slag is contacted with an acid under certain prescribed conditions to produce a liquid product and a particulate solid product. The particulate solid product is separated from the liquid and treated at least two more times with acid to produce a solid residue consisting essentially of magnesium fluoride substantially free of uranium and having a residual radioactivity level of less than about 1000 pCi/gm. In accordance with a particularly preferred embodiment of the invention a catalyst and an oxidizing agent are used during the acid treatment and preferably the acid is sulfuric acid having a strength of about 1.0 Normal.
- Inventors:
-
- Canoga Park, CA
- Woodland Hills, CA
- Issue Date:
- Research Org.:
- Rockwell International Corp., Canoga Park, CA (United States)
- OSTI Identifier:
- 867137
- Patent Number(s):
- 4874599
- Assignee:
- Rockwell International Corporation (El Segundo, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- DOE Contract Number:
- AT03-83SF11948
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- magnesium; fluoride; recovery; method; obtaining; substantially; free; radioactive; uranium; slag; containing; radioactivity; level; 7000; pci; gm; ground; particle; size; 200; microns; contacted; acid; prescribed; conditions; produce; liquid; product; particulate; solid; separated; treated; times; residue; consisting; essentially; residual; 1000; accordance; particularly; preferred; embodiment; catalyst; oxidizing; agent; treatment; preferably; sulfuric; strength; normal; recovery method; magnesium fluoride; particularly preferred; particulate solid; radioactivity level; slag containing; substantially free; consisting essentially; preferred embodiment; particle size; sulfuric acid; liquid product; solid residue; oxidizing agent; solid product; radioactive uranium; obtaining magnesium; oxidizing agen; /423/
Citation Formats
Gay, Richard L, and McKenzie, Donald E. Magnesium fluoride recovery method. United States: N. p., 1989.
Web.
Gay, Richard L, & McKenzie, Donald E. Magnesium fluoride recovery method. United States.
Gay, Richard L, and McKenzie, Donald E. Sun .
"Magnesium fluoride recovery method". United States. https://www.osti.gov/servlets/purl/867137.
@article{osti_867137,
title = {Magnesium fluoride recovery method},
author = {Gay, Richard L and McKenzie, Donald E},
abstractNote = {A method of obtaining magnesium fluoride substantially free from radioactive uranium from a slag containing the same and having a radioactivity level of at least about 7000 pCi/gm. The slag is ground to a particle size of about 200 microns or less. The ground slag is contacted with an acid under certain prescribed conditions to produce a liquid product and a particulate solid product. The particulate solid product is separated from the liquid and treated at least two more times with acid to produce a solid residue consisting essentially of magnesium fluoride substantially free of uranium and having a residual radioactivity level of less than about 1000 pCi/gm. In accordance with a particularly preferred embodiment of the invention a catalyst and an oxidizing agent are used during the acid treatment and preferably the acid is sulfuric acid having a strength of about 1.0 Normal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}