OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES
Tantalum methylate of general formula Ta2(OMe)10 was synthesized by electrochemical synthesis as a precursor for obtaining oxomethylate complexes of tantalum and rhenium. The complex is used to prepare catalysts in reactions of cross-condensation and reductive dehydration of alcohols. The catalysts...
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| Format: | Article |
| Language: | Russian |
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MIREA - Russian Technological University
2016-10-01
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| Series: | Тонкие химические технологии |
| Subjects: | |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/47 |
| _version_ | 1797882065314643968 |
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| author | E. S. Kulikova D. V. Drobot A. V. Chistyakov M. V. Tsodikov |
| author_facet | E. S. Kulikova D. V. Drobot A. V. Chistyakov M. V. Tsodikov |
| author_sort | E. S. Kulikova |
| collection | DOAJ |
| description | Tantalum methylate of general formula Ta2(OMe)10 was synthesized by electrochemical synthesis as a precursor for obtaining oxomethylate complexes of tantalum and rhenium. The complex is used to prepare catalysts in reactions of cross-condensation and reductive dehydration of alcohols. The catalysts are based on γ-Al2O3 and TiO2. Ultradisperse and nanosized TiO2 is obtained by the supercritical fluid technology. The sample is characterized by different methods (DTA, XRD, DSC). It is shown that annealing at 340°C allows obtaining anatase modification of TiO2 with a specific urface of 27.3 sq.m/g which can serve as a matrix for drawing active components of catalysts. It is shown that the Ta-Re/Al2O3 catalyst allows transforming ethanol and mixtures of ethanol with glycerin into aliphatic hydrocarbons C3-C11. A technological scheme for obtaining active components of the catalysts for cross-condensation and reductive dehydration of alcohols is suggested. |
| first_indexed | 2024-04-10T03:29:01Z |
| format | Article |
| id | doaj.art-c28e1950d1fd48959660aaa5f96a8a29 |
| institution | Directory Open Access Journal |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| last_indexed | 2024-04-10T03:29:01Z |
| publishDate | 2016-10-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj.art-c28e1950d1fd48959660aaa5f96a8a292023-03-13T07:25:37ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752016-10-01115425110.32362/2410-6593-2016-11-5-42-5047OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICESE. S. Kulikova0D. V. Drobot1A. V. Chistyakov2M. V. Tsodikov3Moscow Technological University (Institute of Fine Chemical Technologies)Moscow Technological University (Institute of Fine Chemical Technologies)A.V. Topchiev Institute of Petrochemical Synthesis RANA.V. Topchiev Institute of Petrochemical Synthesis RANTantalum methylate of general formula Ta2(OMe)10 was synthesized by electrochemical synthesis as a precursor for obtaining oxomethylate complexes of tantalum and rhenium. The complex is used to prepare catalysts in reactions of cross-condensation and reductive dehydration of alcohols. The catalysts are based on γ-Al2O3 and TiO2. Ultradisperse and nanosized TiO2 is obtained by the supercritical fluid technology. The sample is characterized by different methods (DTA, XRD, DSC). It is shown that annealing at 340°C allows obtaining anatase modification of TiO2 with a specific urface of 27.3 sq.m/g which can serve as a matrix for drawing active components of catalysts. It is shown that the Ta-Re/Al2O3 catalyst allows transforming ethanol and mixtures of ethanol with glycerin into aliphatic hydrocarbons C3-C11. A technological scheme for obtaining active components of the catalysts for cross-condensation and reductive dehydration of alcohols is suggested.https://www.finechem-mirea.ru/jour/article/view/47sas-технологияtantalum and rhenium oxomethylates complexelectrochemical synthesiscrosscondensationreducitive dehydration of alcoholssas-technologyalkoxidetantalum methoxidetitanium dioxide |
| spellingShingle | E. S. Kulikova D. V. Drobot A. V. Chistyakov M. V. Tsodikov OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES Тонкие химические технологии sas-технология tantalum and rhenium oxomethylates complex electrochemical synthesis crosscondensation reducitive dehydration of alcohols sas-technology alkoxide tantalum methoxide titanium dioxide |
| title | OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES |
| title_full | OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES |
| title_fullStr | OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES |
| title_full_unstemmed | OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES |
| title_short | OBTAINING ACTIVE COMPONENTS (Tа, Rа) of BIMETALLIC CATALYSTS ON γ-Al2O3 AND TiO2 MATRICES |
| title_sort | obtaining active components tа rа of bimetallic catalysts on γ al2o3 and tio2 matrices |
| topic | sas-технология tantalum and rhenium oxomethylates complex electrochemical synthesis crosscondensation reducitive dehydration of alcohols sas-technology alkoxide tantalum methoxide titanium dioxide |
| url | https://www.finechem-mirea.ru/jour/article/view/47 |
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