Process for obtaining uranium trioxide by direct thermal denitration of uranyl nitrate
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United States of America Patent
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May 6, 1997
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N/A
app pub date -
Feb 28, 1996
filing date -
Jun 13, 1994
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Abstract
Process for obtaining uranium trioxide from a uranyl nitrate solution, the trioxide obtained having to have a specific surface between 12 and 15 m.sup.2 /g, consisting of producing in a zone of the reaction chamber called the contact zone, a thermomechanical contact between the uranyl nitrate solution, atomized into fine droplets according to a given axis in the contact zone, and a gaseous fluid introduced into the contact zone, the gaseous fluid being at a sufficiently high temperature and having a sufficiently high mechanical energy to carry out, within the contact zone, the dehydration and calcination of the uranyl nitrate.
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