K 81 Krasnenko, T. I. Explosive solid phase transformation in geterodesmic inorganic compounds [Text] / T. I. Krasnenko, L. V. Zolotukhina // Physics and chemistry of novel materials: 4th Bilateral Russian-German Symposium (Febr. 24-March 1, 1999): Progr. and abstr. - 1999. - P2.16 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ФАЗЫ ТВЕРДЫЕ -- ТВЕРДЫЕ ФАЗЫ -- ФАЗЫ ВЗРЫВНЫЕ -- ВЗРЫВНЫЕ ФАЗЫ -- ГОРЕНИЕ -- РЕШЕТКА КРИСТАЛЛИЧЕСКАЯ -- КРИСТАЛЛИЧЕСКАЯ РЕШЕТКА -- ПИРОВАНАДАТ ЦИНКА -- СВЯЗИ ХИМИЧЕСКИЕ -- ХИМИЧЕСКИЕ СВЯЗИ -- Zn -- ЦИНК -- ОРГАНИЧЕСКИЕ СОЕДИНЕНИЯ -- СОЕДИНЕНИЯ ОРГАНИЧЕСКИЕ -- ХИМИЯ |
K 81 Krasnenko, T. I. Evolution of S-metal vanadate structures and properties [Text] / T. I. Krasnenko, A. A. Fotiev // 31-st International Congress of Pure and Applied Chemistry: Abstr. of Poster Communications. - 1987. - V. 1. - P5.79 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- s-ЭЛЕМЕНТЫ -- ВАНАДАТЫ -- МЕТАЛЛЫ -- СТРУКТУРА ВАНАДАТОВ -- СВОЙСТВА ВАНАДАТОВ |
D 46 Desulfurization of recycled vanadium-bearing raw materials [Text] / A. V. Sirin, T. I. Krasnenko, V. G. Mizin, T. P. Sirina, M. V. Rotermel', O. S. Pozdnyakova // Metallurgist . - 2006. - Vol. 50, № 11-12. - P565-570. - Библиогр. : с. 570 (6 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ДЕСУЛЬФУРАЦИЯ -- ВАНАДИЕВОЕ СЫРЬЕ Аннотация: A study of model systems that include sodium vanadate, sulfates of nickel, iron, and calcium, and a soda solution made it possible to determine the optimum parameters for desulfurizing high-sulfur wastes formed in the operation of heating and power plants. It is shown that when Ni/V = 0.15–0.33 and Fe/V = 0.5–0.75, 98% of the vanadium and 99.8% of the nickel are precipitated and sulfur content is no greater than 0.2 mass%. This has made it possible to obtain concentrates suitable for the smelting of complex alloys Полный ресурс |
A 10 A new high-temperature modification of copper pyrovanadate [Текст] / S. A. Petrova, R. G. Zakharov, M. V. Rotermel', T. I. Krasnenko, N. A. Vatolin // Doklady Chemistry. - 2005. - Vol. 400, № 2. - С. 30-33. - Библиогр. : с. 33 (10 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОВАНАДАТ МЕДИ -- ФАЗОВЫЕ ПЕРЕХОДЫ Полный текст |
X 10 X-ray diffraction study of the Zn2V2O7-Cd2V2O7 system in the temperature range 20-1000°C [Текст] / M. V. Rotermel', T. I. Krasnenko, R. G. Zakharov, S. A. Petrova // Zhurnal Neorganicheskoi Khimii. - 2004. - Vol. 49, № 11. - С. 1885-1889 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
K 81 Krasnenko, T. I. Diagrams of Phase Equilibria: a Basis for Implementing Technologies of Technogenic Waste Product Conversion / T. I. Krasnenko // Bulletin of the Russian Academy of Sciences: Physics. - 2010. - Vol. 74, № 8. - P. 1163-1166 : il. - Bibliogr. : p. 1166 (4 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ДИАГРАММЫ ФАЗОВОГО РАВНОВЕСИЯ -- ВАНАДИЙ -- ОТХОДЫ ТЕПЛОВЫХ ЭЛЕКТРОСТАНЦИЙ Аннотация: Diagrams of the phase equilibria of multicomponent systems simulating the composition of tech nogenic waste products of thermal power stations’ burning of vanadium-containing fuel were obtained. The possibility of controlling the degree of vanadium extraction during oxidative calcinations was shown by varying the proportions of the mixture of two types of waste: thermal power station energy silts and wastewater treatment silts \\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2010, V. 74, N 8, P. 1163-1166.pdf |
C 91 Crystal Structure of -beta'-Zn2V2O7 / T. I. Krasnenko, V. G. Zubkov, A. P. Tyutyunnik, L. V. Zolotukhina, E. F. Vasyutinskaya // Crystallography Reports. - 2003. - Vol. 48, № 1. - P. 35-38 : il. - Bibliogr. : p. 38 (9 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОВАНАДАТ ЦИНКА -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ Аннотация: The crystal structure of the high-temperature modification of zinc pyrovanadate, namely, beta'-Zn2V2O7, is refined by the full-profile Rietveld method (GSAS) using the high-temperature X-ray diffraction data. The crystals are monoclinic (space group C2/m, Z = 2); the unit cell parameters are as follows: a =6.9324(2) Å, b = 8.4394(2) Å, c = 5.0326(1) Å, and b = 108.272(2)°. Comparative analysis of the crystal structures of b'-Zn2V2O7, b-Mn2V2O7, and Cd2V2O7 is performed \\\\Expert2\\nbo\\Crystallography Reports (Кристаллография)\\2003, v.48, N 1, p.35-38.pdf |
K 81 Krasnenko, T. I. Explosive Phase Transition of Zn2V2O7 on Cooling / T. I. Krasnenko, L. V. Zolotukhina, L. V. Andrianova // Inorganic Materials. - 2003. - Vol. 39, № 8. - P. 863-865 : il. - Bibliogr. : p. 865 (7 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОВАНАДАТ ЦИНКА -- ФАЗОВЫЙ ПЕРЕХОД Аннотация: The vapor composition over zinc pyrovanadate, Zn2V2O7, was studied by mass spectrometry in&&order to elucidate the mechanism of the explosive phase transition the material undergoes during cooling. The vapor phase over zinc pyrovanadate is found to contain the complex ion . A model for the formation of lattice defects in Zn2V2O7 during heating is proposed. The explosive phase transition during cooling is shown to be associated with the formation of the vacancy complex [vacancy-] ZnVO3 Полный текст |
P 56 Phase Relations in the NaVO3-Ca(VO3)2 System / E. M. Gorbunova, B. V. Slobodin, T. I. Krasnenko, T. P. Sirina // Inorganic Materials. - 2004. - Vol. 40, № 4. - P. 407-410 : il. - Bibliogr. : p. 410 (6 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ФАЗОВЫЕ ДИАГРАММЫ -- ВАНАДАТ КАЛЬЦИЯ -- ВАНАДАТ НАТРИЯ Аннотация: The phase diagram of the NaVO3–Ca(VO3)2 system is mapped out. The system is shown to contain NaVO3-based solid solutions (0–5 mol % Ca(VO3)2), Ca(VO3)2-based solid solutions (0–17 mol % NaVO3), and the double metavanadate Na2Ca(VO3)4. The results on the sequence of phase changes during heat treatment of an Na2CO3+ CaCO3+ 2V2O5mixture and on the direction of diffusion flows (studied by the Tubandt method) indicate that the phase formation in the NaVO3–Ca(VO3)2 system is mainly due to the diffusion of Na+ ions Полный текст |
W 30 Wastes from heating and electric power plants – a commercial raw material for the recovery of vanadium / B. V. Slobodin, T. I. Krasnenko, B. E. Dobrynin, T. P. Sirina // Metallurgist . - 2001. - Vol. 45, № 7-8. - P306-311 : il. - Bibliogr. : p. 311 (12 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ОТХОДЫ ВАНАДИЙСОДЕРЖАЩИЕ -- ОТХОДЫ ТЕПЛОЭЛЕКТРОСТАНЦИЙ -- ОКСИД ВАНАДИЯ Полный текст |
C 76 Controlling pyrometallurgical processes used to extract vanadium from commercial raw materials on the basis of chemical modeling of vanadium-bearing oxide systems / B. V. Slobodin, T. I. Krasnenko, E. M. Gorbunova, T. P. Sirina // Metallurgist . - 2004. - Vol. 48, № 1-2. - P85-91 : il. - Bibliogr. : p. 90-91 (20 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОМЕТАЛЛУРГИЯ -- ИЗВЛЕЧЕНИЕ ВАНАДИЯ -- СИСТЕМЫ ОКСИДНЫЕ -- ВАНАДИЙСОДЕРЖАЩЕЕ СЫРЬЕ Полный текст |
P 56 Phase Relations in the Zn2V2O7–Cu2V2O7 System / T. I. Krasnenko, M. V. Rotermel', S. A. Petrova, R. G. Zakharov, O. V. Sivtsova, A. N. Chvanova // Russian Journal of Inorganic Chemistry. - 2008. - Vol. 53, № 10. - P1641-1647 : il. - Bibliogr. : p. 1647 (21 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОВАНАДАТЫ -- ФАЗОВЫЕ СООТНОШЕНИЯ Аннотация: Phase relations in the Zn2V2O7–Cu2V2O7 system were studied by high-temperature X-ray diffraction and differential thermal analysis. The major phase constituents of the system are solid solutions based on Zn2V2O7 and Cu2V2O7 polymorphs and their coexistence regions. The generation of α-Zn2 – 2xCu2xV2O7 solid solution, where 0 ≤ ı ≤ 0.30, leaves almost unchanged the stabilization temperature of the high-temperature zinc pyrovanadate phase. The α-Cu2 – 2xZn2xV2O7 homogeneity range is 5 mol % Zn2V2O7. In the range 0.050 ≤ ı ≤ 0.09 from 20 to ~ 620°ë, there is the two-phase field of α-Cu2V2O7 and β-Cu2V2O7 base solid solutions. At still higher temperatures, β-Zn2 – 2xCu2xV2O7 and α-Cu2 – 2xZn2xV2O7 coexist in the mixedphase region. β-Zn2 – 2xCu2xV2O7 solid solution, where 0 ≤ ı ≤ 0.30, exists above 610 ± 5°ë. The extent of the β'-Cu2V2O7-base solid solution is 9 to 65 mol % Zn2V2O7 at 615 ± 5°ë, expanding to 0 mol % Zn2V2O7 with rising temperature Полный текст |
T 44 Thermally Activated Transformations in Stable and Metastable Copper(II) Pyrovanadate Polymorphs / M. V. Rotermel', T. I. Krasnenko, S. A. Petrova, R. G. Zakharov // Russian Journal of Inorganic Chemistry. - 2009. - Vol. 54, № 1. - P22-26 : il. - Bibliogr. : p. 26 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): МЕДЬ ДВУХВАЛЕНТНАЯ -- ПИРОВАНАДАТ МЕДИ Аннотация: The structural transformations of α- and β'-Cu2V2O7 phases over the entire temperature range of their existence and α--> β'-Cu2V2O7 and β'--> β-Cu2V2O7 polymorphic transitions in α-Cu2V2O7 are described from the crystal-chemical standpoint. Variations in the parameters of the polyhedral blocks of the α-Cu2V2O7 structure implies that the greatest deformations occur with a negative and near-zero bulk thermal expansion in the range from room temperature to 400°C. The compression and rotation of vanadium–oxygen diortho groups is accompanied by unbending of zigzag copper–oxygen chains, with the distances between them unchanged, which is the reason for the anomalous volume expansion of the structure. Thermal distortion of β'-Cu2V2O7 is insignificant. The thermal expansion coefficients (TECs) of unit cell parameters are as follows: αa = −1.36 × 10–5 1/K, αb = 1.95 × 10–5 1/K, αc = 1.37 × 10–5 1/K, αβ = –0.18 × 10–5 1/K, and αV = 1.93 × 10–5 1/K. We demonstrate that the low-temperature Cu2V2O7 phase can be formed without admixtures of metastable β-Cu2V2O7 upon slow cooling (at about 1 K/min) of the high-temperature phase Полный текст |
K 81 Krasnenko, T. I. Effect of Thermal Transformations of Constituent Polyhedra of the Crystal Structure on the Properties of Cd2V2O7 / T. I. Krasnenko, M. V. Rotermel' // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 3. - P430-433 : il. - Bibliogr. : p. 433 (5 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПИРОВАНАДАТ КАДМИЯ -- ТЕРМИЧЕСКИЕ ПРЕВРАЩЕНИЯ Аннотация: Analysis of variations in the linear and angular parameters of constituent polyhedra of the cad- mium pyrovanadate Cd2V2O7 structure, namely, VO4 tetrahedra and CdO6 octahedra, as calculated from the results of in situ high temperature X ray diffraction experiments in the range from 25 to 900°C, showed that, in the range from 600 to 720°C, the thermal expansion coefficient (tec) of CdO6 polyhedra is near zero, whereas VO4 tetrahedra increase in volume, although less strongly than in other temperature ranges. A structural interpretation is given to anomalous temperature dependences of cadmium ion emission and electrical conductivity on the basis of different thermal behavior patterns of the constituent polyhedra of the Cd2V2O7 structure Полный текст |
K 81 Krasnenko, T. I. Stabilizing the triclinic structure of Mn2V2O 7 via isovalent cationic substitution / T. I. Krasnenko, N. A. Zhuravlev, M. V. Rotermel // Bulletin of the Russian Academy of Sciences: Physics. - 2013. - Vol. 77, № 3. - С. 246-248 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СТРУКТУРА Mn2V2O7 -- ФАЗОВЫЙ ПЕРЕХОД |