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Title: Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom

Abstract

An improved method for producing .sup.99m Tc compositions. .sup.100 Mo metal is irradiated with photons in a particle (electron) accelerator to produce .sup.99 Mo metal which is dissolved in a solvent. A solvated .sup.99 Mo product is then dried to generate a supply of .sup.99 MoO.sub.3 crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized .sup.99m TcO.sub.3 and vaporized .sup.99m TcO.sub.2 but will not cause the production of vaporized .sup.99 MoO.sub.3. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized .sup.99m Tc.sub.2 O.sub.7. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized .sup.99m Tc.sub.2 O.sub.7 into a condensed .sup.99m Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline .sup.99 MoO.sub.3 starting materials with segregated .sup.99m Tc compositions therein which avoid the production of vaporized .sup.99 MoO.sub.3 contaminants.

Inventors:
 [1];  [1];  [2];  [1]
  1. (Idaho Falls, ID)
  2. (Blackfoot, ID)
Issue Date:
Research Org.:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
OSTI Identifier:
871813
Patent Number(s):
5802438
Assignee:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID) INEEL
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; generating; crystalline; 99; moo; product; isolation; 99m; tc; compositions; therefrom; improved; producing; 100; metal; irradiated; photons; particle; electron; accelerator; produce; dissolved; solvent; solvated; dried; generate; supply; crystals; thereafter; heated; temperature; sublimate; form; gaseous; mixture; containing; vaporized; tco; production; combined; oxidizing; gas; stream; cooled; sufficient; convert; condensed; tc-containing; purity; levels; resulting; reduced; conditions; ultrafine; starting; materials; segregated; therein; avoid; contaminants; tc compositions; temperature conditions; oxidizing gas; starting material; gaseous stream; mixture containing; improved method; gaseous mixture; temperature sufficient; stream containing; starting materials; reduced temperature; thereafter heated; fine crystalline; purity levels; containing vapor; /423/376/976/

Citation Formats

Bennett, Ralph G., Christian, Jerry D., Kirkham, Robert J., and Tranter, Troy J. Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom. United States: N. p., 1998. Web.
Bennett, Ralph G., Christian, Jerry D., Kirkham, Robert J., & Tranter, Troy J. Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom. United States.
Bennett, Ralph G., Christian, Jerry D., Kirkham, Robert J., and Tranter, Troy J. Thu . "Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom". United States. https://www.osti.gov/servlets/purl/871813.
@article{osti_871813,
title = {Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom},
author = {Bennett, Ralph G. and Christian, Jerry D. and Kirkham, Robert J. and Tranter, Troy J.},
abstractNote = {An improved method for producing .sup.99m Tc compositions. .sup.100 Mo metal is irradiated with photons in a particle (electron) accelerator to produce .sup.99 Mo metal which is dissolved in a solvent. A solvated .sup.99 Mo product is then dried to generate a supply of .sup.99 MoO.sub.3 crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized .sup.99m TcO.sub.3 and vaporized .sup.99m TcO.sub.2 but will not cause the production of vaporized .sup.99 MoO.sub.3. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized .sup.99m Tc.sub.2 O.sub.7. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized .sup.99m Tc.sub.2 O.sub.7 into a condensed .sup.99m Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline .sup.99 MoO.sub.3 starting materials with segregated .sup.99m Tc compositions therein which avoid the production of vaporized .sup.99 MoO.sub.3 contaminants.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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