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Influence of Heat Treatment Conditions on the Physicochemical and Catalytic Properties of a Chromium Containing Catalyst for Tetrachloroethylene Hydrofluorination to Pentafluoroethane Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Translated
Journal Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Output data Year: 2011, Volume: 52, Number: 3, Pages: 418-426 Pages count : 9 DOI: 10.1134/S0023158411030189
Authors Simonova L.G. 1 , Zirka A.A. 1 , Reshetnikov S.I. 1 , Larina T.V. 1 , Litvak G.S. 1 , Pinaeva L.G. 1 , Isupova L.A. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS

Abstract: The physicochemical properties of coprecipitated 95% Cr2O3-5% Al2O3 oxide systems obtained by heat treatment of the precursor in nitrogen and air between 110 and 600°C and their influence on the catalytic activity in tetrachloroethylene hydrofluorination were studied by thermal and X-ray diffraction analyses, diffuse reflectance spectroscopy, and specific surface are measurements. The CrO1.9 compounds are more active than CrO1.5, but their preparation in the finely divided state is difficult because of the high exothermicity of the oxidation stage, which results in the decomposition of the oxides CrO1.9 and CrO1.5 followed by the crystallization and sintering of the decomposition products. Fine-powder and highly active chromium-containing oxides with CrO1.9 stoichiometry can be obtained by two-stage heating of hydroxides first in nitrogen and then in air at comparatively low temperatures.
Cite: Simonova L.G. , Zirka A.A. , Reshetnikov S.I. , Larina T.V. , Litvak G.S. , Pinaeva L.G. , Isupova L.A.
Influence of Heat Treatment Conditions on the Physicochemical and Catalytic Properties of a Chromium Containing Catalyst for Tetrachloroethylene Hydrofluorination to Pentafluoroethane
Kinetics and Catalysis. 2011. V.52. N3. P.418-426. DOI: 10.1134/S0023158411030189 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
ArticleLinkType.TRANSLATED_TO_ORIGINAL: Симонова Л.Г. , Зирка А.А. , Решетников С.И. , Ларина Т.В. , Литвак Г.С. , Пинаева Л.Г. , Исупова Л.А.
Влияние условий термообработки на физико-химические и каталитические свойства хромсодержащего катализатора гидрофторирования тетрахлорэтилена в пентафторэтан
Кинетика и катализ. 2011. Т.52. №3. С.429-437. publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Apr 29, 2010
Published print: May 1, 2011
Published online: Jun 8, 2011
Identifiers:
publication_identifier.wos_identifier_type WOS:000291397200012
publication_identifier.scopus_identifier_type 2-s2.0-79959517388
publication_identifier.rinz_identifier_type 16998353
publication_identifier.accession_number_identifier_type 2011:709717
publication_identifier.chemical_accession_number_identifier_type 155:126569
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