caa a22 4500 465732437 CHVBK 20180323111745.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF02117547 doi (NATIONALLICENCE)springer-10.1007/BF02117547 Urea and urotropine conversion in the preparation of microspherical metal oxide particles by internal gelation [Elektronische Daten] [A. Karpyuk, N. Kolyada, A. Klyugin] The results of studies on urea and urotropine product distribution in solutions formed in microspherical nuclear fuel preparation by internal gelation are presented. It is shown that urea, urotropine and formaldehyde, the urotropine hydrolysis product, undergo various conversions in solutions, resulting in methylolurea and urea-formaldehyde resins formation. Results on the influence of acidity on the process as a function of time are presented. The organic content in the resulting solutions and microspheres has been determined. Akadémiai Kiadó, 1990 Karpyuk A. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut Kolyada N. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut Klyugin A. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut Journal of Radioanalytical and Nuclear Chemistry Articles Springer Netherlands 143/1(1990-11-01), 61-66 0236-5731 143:1<61 1990 143 10967 https://doi.org/10.1007/BF02117547 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02117547 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Karpyuk A. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut NATIONALLICENCE 700 1- Kolyada N. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut NATIONALLICENCE 700 1- Klyugin A. A. A. Bochvar Scientific Research Institute of Inorganic Materials, Moscow, (USSR) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Articles Springer Netherlands 143/1(1990-11-01), 61-66 0236-5731 143:1<61 1990 143 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer