Tributyl phosphate-nitrate solvent extraction process for producing high purity nuclear grade rare earth metal oxides
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United States of America Patent
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Nov 3, 2015
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Oct 3, 2013
app pub date -
Oct 1, 2010
filing date -
Oct 1, 2010
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Abstract
An improved process for the preparation of high purity rare metal compounds such as oxides utilizing TBP (Tri-Butyl Phosphate)-nitrate solvent extraction technique adapted to manufacture nuclear grade rare metal compounds such as zirconium oxide wherein the said process substantially aids in reducing the specific generation of ammonium nitrate effluent volume thereby increasing its concentration when the said effluent comprising ammonium nitrate and ammonium sulphate are utilized for stripping of the said rare metal compound from the organic solvent in the said process of production of high purity rare metal oxide powder.
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