Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate
Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released fro...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, W. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1997 |
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| Schlagwörter: |
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| Systematik: |
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| Anmerkung: |
© Kluwer Academic Publishers 1997 |
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| Übergeordnetes Werk: |
Enthalten in: Catalysis letters - Kluwer Academic Publishers, 1988, 46(1997), 3-4 vom: Juli, Seite 261-265 |
|---|---|
| Übergeordnetes Werk: |
volume:46 ; year:1997 ; number:3-4 ; month:07 ; pages:261-265 |
| Links: |
|---|
| DOI / URN: |
10.1023/A:1019095208092 |
|---|
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OLC2040139524 |
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| 520 | |a Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. | ||
| 650 | 4 | |a Acrylic Acid | |
| 650 | 4 | |a Isobutane | |
| 650 | 4 | |a Methacrylic Acid | |
| 650 | 4 | |a Oxidative Dehydrogenation | |
| 650 | 4 | |a Desorption Peak | |
| 700 | 1 | |a Ueda, W. |4 aut | |
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10.1023/A:1019095208092 doi (DE-627)OLC2040139524 (DE-He213)A:1019095208092-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Li, W. verfasserin aut Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate 1997 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1997 Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. Acrylic Acid Isobutane Methacrylic Acid Oxidative Dehydrogenation Desorption Peak Ueda, W. aut Enthalten in Catalysis letters Kluwer Academic Publishers, 1988 46(1997), 3-4 vom: Juli, Seite 261-265 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:46 year:1997 number:3-4 month:07 pages:261-265 https://doi.org/10.1023/A:1019095208092 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_21 GBV_ILN_65 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4314 VA 2890 AR 46 1997 3-4 07 261-265 |
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10.1023/A:1019095208092 doi (DE-627)OLC2040139524 (DE-He213)A:1019095208092-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Li, W. verfasserin aut Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate 1997 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1997 Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. Acrylic Acid Isobutane Methacrylic Acid Oxidative Dehydrogenation Desorption Peak Ueda, W. aut Enthalten in Catalysis letters Kluwer Academic Publishers, 1988 46(1997), 3-4 vom: Juli, Seite 261-265 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:46 year:1997 number:3-4 month:07 pages:261-265 https://doi.org/10.1023/A:1019095208092 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_21 GBV_ILN_65 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4314 VA 2890 AR 46 1997 3-4 07 261-265 |
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10.1023/A:1019095208092 doi (DE-627)OLC2040139524 (DE-He213)A:1019095208092-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Li, W. verfasserin aut Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate 1997 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1997 Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. Acrylic Acid Isobutane Methacrylic Acid Oxidative Dehydrogenation Desorption Peak Ueda, W. aut Enthalten in Catalysis letters Kluwer Academic Publishers, 1988 46(1997), 3-4 vom: Juli, Seite 261-265 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:46 year:1997 number:3-4 month:07 pages:261-265 https://doi.org/10.1023/A:1019095208092 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_21 GBV_ILN_65 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4314 VA 2890 AR 46 1997 3-4 07 261-265 |
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catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate |
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Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate |
| abstract |
Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. © Kluwer Academic Publishers 1997 |
| abstractGer |
Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. © Kluwer Academic Publishers 1997 |
| abstract_unstemmed |
Abstract Isobutane was catalytically oxidized to methacrylic acid with molecular oxygen above 300°C over 0 crystalline particles of pyridinium 12-molybdophosphates which were activated by heat-treatment under a nitrogen stream up to 420°C. During the treatment two third of pyridine were released from the sample and one third remained accompanied by the formation of orthorhombic structure. It was proved by IR studies that the catalyst became a reduced state by this treatment. The reduced state was highly stable even under catalytic oxidation conditions with molecular oxygen. 50% selectivity to methacrylic acid and 22% to acetic acid were achieved at 22% conversion of isobutane. The highly stable reduced state and structure of the activated heteropolymolybdophosphate catalyst seem to be responsible for the high activity for isobutane oxidation and high selectivity to methacrylic acid formation. © Kluwer Academic Publishers 1997 |
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3-4 |
| title_short |
Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate |
| url |
https://doi.org/10.1023/A:1019095208092 |
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| author2 |
Ueda, W. |
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Ueda, W. |
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| doi_str |
10.1023/A:1019095208092 |
| up_date |
2024-07-04T01:21:09.347Z |
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