Autor:	S. A. Bartenev, V. N. Romanovskii, S. A. Strelkov, G. F. Egorov, M. L. Hyder, L. N. Lazarev, E. R. Nazin, N. G. Firsin, G. M. Zachinyaev
Rok vydání:	2003
Předmět:	Chemical resistance chemistry.chemical_compound Sorbent chemistry Nitric acid Temperature jump Phase (matter) Gas evolution reaction Inorganic chemistry Aqueous two-phase system Sorption Physical and Theoretical Chemistry
Zdroj:	Radiochemistry. 45:51-55
ISSN:	1066-3622
DOI:	10.1023/a:1022369418615
Popis:	Thermal degradation of VP-1AP anion exchanger and its mixtures with HNO3 was studied in open vessels at 40 to 260°C. The anion exchanger ignites only after drying and heating to 220-260°C. Heating VP-1AP mixtures with 3-12 M HNO3 to 100°C is accompanied by gas evolution at a rate of 0.6 l min-1 (lsorb)-1. Removal of the aqueous phase from the mixtures at 130-170°C initiates intensive oxidation. It is accompanied by a temperature jump in the sorbent phase and by gas evolution acceleration and can be regarded as thermal explosion. Mixture preheating and irradiation reduce the thermal explosion "onset" temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6aebf77646f7e1132b996c51a5471bb5 https://doi.org/10.1023/a:1022369418615 Zobrazit plný text záznamu Full text from SpringerLink