Triuranium octoxide dissolution by nitric acid solutions with addition of ammonium nitrate / Smirnov A. L.,Skripchenko S. Yu.,Rychkov V. N.,Pastukhov A. M.,Shtutsa M. G. // HYDROMETALLURGY. - 2012. - V. 127, l. . - P. 112-115.

ISSN/EISSN:

0304-386X / 1879-1158

Type:

Article

Abstract:

The processes of triuranium octoxide dissolution by nitric acid with and without addition of ammonium nitrate were investigated in the temperature range 75-95 degrees C and in the acid concentration range 3.0-14.36 mol/L The optimal effect of nitrogen oxide reduction to elementary nitrogen was obtained by adding of ammonium nitrate in the concentration range 1-2 mol/L and at temperature 75 degrees C. The kinetics of triuranium octoxide dissolution by nitric acid solutions (3.0 mol/L) with and without addition of ammonium nitrate were studied. The highest dissolution rate was obtained at concentration of ammonium nitrate 2 mol/L and temperature 368 K. The source of ammonium nitrate in the technology of uranium refining can be ammonium polyuranate. (C) 2012 Elsevier B.V. All rights reserved.

Author keywords:

Dissolution; Triuranium octoxide; Ammonium nitrate; Nitrogen oxides; Nitric acid URANIUM-DIOXIDE; NOX ABATEMENT; U3O8 POWDERS

DOI:

10.1016/j.hydromet.2012.08.002

Web of Science ID:

ISI:000310410000016

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1879-1158
Keywords-Plus	URANIUM-DIOXIDE; NOX ABATEMENT; U3O8 POWDERS
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	uran233@mail.ru
ResearcherID-Numbers	Skripchenko, Sergey/B-3615-2016
ORCID-Numbers	Skripchenko, Sergey/0000-0002-7564-886X
Number-of-Cited-References	20
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	59
Journal-ISO	Hydrometallurgy
Doc-Delivery-Number	028GE