K 81 Krasil'nikov, V. N. Loss of activity by vanadium sulfuric acid catalysts under the action of arsenic(III) oxide vapor [Text] / V. N. Krasil'nikov, A. P. Shtin, V. I. Malkiman // Russian Journal of Applied Chemistry. - 2006. - Vol. 79, № 4. - P619-623 : il. - Bibliogr. : p. 623 (12 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): КАТАЛИЗАТОРЫ -- ВАНАДИЕВЫЕ КАТАЛИЗАТОРЫ -- СЕРНАЯ КИСЛОТА -- ОКСИД МЫШЬЯКА Аннотация: Chemical processes leading to inactivation of vanadium sulfuric acid catalysts by arsenic(III) oxide vapor were studied. The interaction and solubility in the system VO(H2AsO4)2-VOAsO4-H3AsO4 -H2O and the composition of oxovanadium arsenate in a mixed oxidation state, used as a starting substance in synthesis of (VIVO)(VVO)2(As2O7)2, were examined Полный текст |