JPS5641816A - Crystalline vanadium-phosphorus oxide - Google Patents
Crystalline vanadium-phosphorus oxideInfo
- Publication number
- JPS5641816A JPS5641816A JP11631179A JP11631179A JPS5641816A JP S5641816 A JPS5641816 A JP S5641816A JP 11631179 A JP11631179 A JP 11631179A JP 11631179 A JP11631179 A JP 11631179A JP S5641816 A JPS5641816 A JP S5641816A
- Authority
- JP
- Japan
- Prior art keywords
- vanadium
- oxide
- crystalline
- phosphorus oxide
- phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- LJYCJDQBTIMDPJ-UHFFFAOYSA-N [P]=O.[V] Chemical compound [P]=O.[V] LJYCJDQBTIMDPJ-UHFFFAOYSA-N 0.000 title abstract 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 238000002441 X-ray diffraction Methods 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- -1 phosphorus compound Chemical class 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 150000003682 vanadium compounds Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Furan Compounds (AREA)
Abstract
PURPOSE: To provide crystalline vanadium-phosphorus oxide having a specified X- ray diffraction pattern and useful as the precursor of a catalyst used in the manufacture of maleic anhydride from hydrocarbon.
CONSTITUTION: This crystalline vanadium-phosphorus oxide has the X-ray diffraction pattern shown by the diagram (where (vs) is very strong, (s) is strong, (m) is medium and (w) is weak). This oxide is manufactured as follows: a vanadium compound such as vanadium pentaoxide and a phosphorus compound such as orthophosphoric acid are mixed into water at ≤ about 50wt% concn. each, and after adding a reducing agent, preferably oxalic acid or hydrochloric acid having weak reducing power, the mixture is allowed to react under mild reducing conditions. The resulting precipitate is separated by filtration and dried. This crystalline oxide is formed into the desired shape and calcined at about 350W650°C to obtain the above- mentioned catalyst.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11631179A JPS5641816A (en) | 1979-09-11 | 1979-09-11 | Crystalline vanadium-phosphorus oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11631179A JPS5641816A (en) | 1979-09-11 | 1979-09-11 | Crystalline vanadium-phosphorus oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5641816A true JPS5641816A (en) | 1981-04-18 |
| JPH0124722B2 JPH0124722B2 (en) | 1989-05-12 |
Family
ID=14683851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11631179A Granted JPS5641816A (en) | 1979-09-11 | 1979-09-11 | Crystalline vanadium-phosphorus oxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5641816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0799795A2 (en) | 1996-04-01 | 1997-10-08 | Nippon Shokubai Co., Ltd. | Vanadium-phosphorus oxide, method for production thereof, catalyst for vapor phase oxidation formed of the oxide, and method for partial vapor phase oxidation of hydrocarbon |
-
1979
- 1979-09-11 JP JP11631179A patent/JPS5641816A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0799795A2 (en) | 1996-04-01 | 1997-10-08 | Nippon Shokubai Co., Ltd. | Vanadium-phosphorus oxide, method for production thereof, catalyst for vapor phase oxidation formed of the oxide, and method for partial vapor phase oxidation of hydrocarbon |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0124722B2 (en) | 1989-05-12 |
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