Method for Dissolving Delta-phase Plutonium PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A process for dissolving plutonium, and in particular, delta-phase plutonium. The process includes heating a mixture of nitric acid, hydroxylammonium nitrate (HAN) and potassium fluoride to a temperature between 40.degree. and 70.degree. C., then immersing the metal in the mixture. Preferably, the nitric acid has a concentration of not more than 2M, the HAN approximately 0.66M, and the potassium fluoride 0.1M. Additionally, a small amount of sulfamic acid, such as 0.1M can be added to assure stability of the HAN in the presence of nitric acid. The oxide layer that forms on plutonium metal may be removed with a non-oxidizing acid as a pre-treatment step.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A process for dissolving plutonium, and in particular, delta-phase plutonium. The process includes heating a mixture of nitric acid, hydroxylammonium nitrate (HAN) and potassium fluoride to a temperature between 40.degree. and 70.degree. C., then immersing the metal in the mixture. Preferably, the nitric acid has a concentration of not more than 2M, the HAN approximately 0.66M, and the potassium fluoride 0.1M. Additionally, a small amount of sulfamic acid, such as 0.1M can be added to assure stability of the HAN in the presence of nitric acid. The oxide layer that forms on plutonium metal may be removed with a non-oxidizing acid as a pre-treatment step.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Plutonium metal dissolves in HNO/sub 3/-N/sub 2/H/sub 4/. HNO/sub 3/-KF solution to yield a Pu/sup 3 +/ solution without an accompanying precipitation of plutonium oxide solids. The reaction evolves less than 0.2 mole of gas per mole of plutonium dissolved; the gas contains only 3% H/sub 2/. About 10/sup -3/ moles of HN/sub 3/ are produced per mole of plutonium dissolved. Optimum conditions for dissolving both alpha-phase and delta-phase plutonium metal were developed. Possible applications are to the recovery of plutonium metal or the processing of irradiated plutonium metal and alloys.
Author: William J. Jenkins Publisher: ISBN: Category : Plutonium Languages : en Pages : 12
Book Description
Plutonium metal was found to dissolve readily in sulfamic acid and in mixtures of sulfamic and nitric acid. This method of dissolution is convenient in a plant process for the recovery of off-standard metal.
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Author: William J. Jenkins
Author: D. G. Karraker
Author: E. L. Whittaker
Author: Mary Beth Reed
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