Catalyst For Producing Methacrylic Acid And Method For Producing The Same, And Method For Producing Methacrylic Acid
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United States of America Patent
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N/A
Issued Date -
Feb 25, 2016
app pub date -
Mar 24, 2014
filing date -
Mar 28, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a method for producing a catalyst for producing methacrylic acid by subjecting methacrolein or the like to vapor phase catalytic oxidation, which contains, as essential active components, Mo, V, P, Cs, NH4 and Cu, the method including (a) a step of preparing a heteropoly acid aqueous solution or the like (A liquid) containing, as constituent elements, Mo, P and V; (b) a step of mixing a part of the resulting A liquid with a cesium compound aqueous solution or the like (B liquid); and (c) a step of mixing the remainder of the A liquid with the B liquid to prepare a slurry liquid (C liquid).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | A | CN105121011 | Mar 24, 2014 |
| KR | A | KR20150135292 | Mar 24, 2014 |
| WO | A1 | WO2014157040 | Mar 24, 2014 |
| EP | A1 | EP2979757 | Mar 24, 2014 |
| JP | B2 | JP6387341 | Mar 24, 2014 |
| TW | A | TW201501793 | Mar 28, 2014 |
International Classification(s)
- 2014 Application Filing Year
- C07C Class
- 3318 Applications Filed
- 2843 Patents Issued To-Date
- 85.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C07C Class
- 38.29 % this patent is cited more than
- 9 Age