Preparation of Catalyst Consisting of Cr<SUB>2</SUB>O<SUB>3</SUB> and V<SUB>2</SUB>O<SUB>5</SUB> and Its Characteristics
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- UENO Akifumi
- Toyohashi University of Technology
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- KOTERA Yoshihide
- Toyohashi University of Technology
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- YAMAZAKI Yasuhisa
- Toyohashi University of Technology
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- SASATANI Yuichi
- Toyohashi University of Technology
Bibliographic Information
- Other Title
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- Cr<SUB>2</SUB>O<SUB>3</SUB>とV<SUB>2</SUB>O<SUB>5</SUB>との複合酸化物触媒の製造
- Cr2O3とV2O5との複合酸化物触媒の製造
- Cr2O3 ト V2O5 ト ノ フクゴウ サンカブツ ショクバイ ノ セイゾ
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Abstract
It is known that catalysts prepared from ammonium metavanadate and chromium (III) nitrate contain X- and Y-phases besides vanadium (V) oxide and chromium (III) oxide. No data concerning the crystal structure and the compositions of these two phases have appeared in the literature so far.<BR>In the pres ent work, X- and Y-phases were isolated by an extraction technique using aqueous ammonia and their compositions were determined by chemical analysis to be Cr2V12035and Cr6V18O45, respectively.<BR>It was reported that the catalyst containing Y-phase showed high activity for the oxidation of acrylaldehyde in the liquid phase reaction. Therefore, experiments were further carried out to obtain the favorable conditions for the preparation of the catalyst containing a large amount of Y-phase. The conditions were proposed as follows; NH4VO3 and Cr (NO3)3⋅9 H2O are mixed together in water and kneaded at around pH 6.5, and the precipitates obtained are then calcined at 600°C in air.
Journal
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- NIPPON KAGAKU KAISHI
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NIPPON KAGAKU KAISHI 1981 (9), 1513-1516, 1981-09-10
The Chemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679365749376
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- NII Article ID
- 130004060107
- 40002842756
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- NII Book ID
- AN00186595
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- ISSN
- 21850925
- 03694577
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- NDL BIB ID
- 2327307
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed