JP2009050770A5 - - Google Patents
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- JP2009050770A5 JP2009050770A5 JP2007218127A JP2007218127A JP2009050770A5 JP 2009050770 A5 JP2009050770 A5 JP 2009050770A5 JP 2007218127 A JP2007218127 A JP 2007218127A JP 2007218127 A JP2007218127 A JP 2007218127A JP 2009050770 A5 JP2009050770 A5 JP 2009050770A5
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（ａ）少なくともモリブデン原料、リン原料およびバナジウム原料を含む触媒原料を溶媒に溶解または懸濁させて溶液またはスラリーとし、それを３０〜８０℃で加熱してＡ液を得る工程（ただし、Ａ液の乾燥物はヘテロポリ酸の立方晶系と三斜晶系の結晶を含む）
（ｂ）アンチモン原料と前記Ａ液とを混合してＢ液を調製する工程
（ｃ）アルカリ金属元素およびアルカリ土類金属元素から選ばれる少なくとも１種を含む溶液またはスラリーであるＣ液を調製する工程
（ｄ）前記Ｂ液と前記Ｃ液を混合する工程
また、上記のメタクリル酸製造用触媒の製造方法で製造したメタクリル酸製造用の触媒を第二の発明とする。
(A) A step of obtaining a liquid A by dissolving or suspending a catalyst raw material containing at least a molybdenum raw material, a phosphorus raw material, and a vanadium raw material in a solvent to obtain a solution or slurry and heating it at 30 to 80 ° C. The dried product contains cubic and triclinic crystals of heteropolyacid)
(B) A step of preparing the B liquid by mixing the antimony raw material and the A liquid (c) preparing a C liquid that is a solution or slurry containing at least one selected from an alkali metal element and an alkaline earth metal element. Step (d) Step of mixing the solution B and the solution C Further, a catalyst for producing methacrylic acid produced by the method for producing a catalyst for producing methacrylic acid is a second invention.
Claims (1)
（ａ）少なくともモリブデン原料、リン原料およびバナジウム原料を含む触媒原料を溶媒に溶解または懸濁させて溶液またはスラリーとし、それを３０〜８０℃で加熱してＡ液を得る工程（ただし、Ａ液の乾燥物はヘテロポリ酸の立方晶系と三斜晶系の結晶を含む）
（ｂ）アンチモン原料と前記Ａ液とを混合してＢ液を調製する工程
（ｃ）アルカリ金属元素およびアルカリ土類金属元素から選ばれる少なくとも１種を含む溶液またはスラリーであるＣ液を調製する工程
（ｄ）前記Ｂ液と前記Ｃ液を混合する工程 A method for producing a catalyst for producing methacrylic acid used for producing methacrylic acid by vapor-phase catalytic oxidation of methacrolein with molecular oxygen, comprising the following steps (a) to (d) A method for producing a catalyst.
(A) A step of obtaining a liquid A by dissolving or suspending a catalyst raw material containing at least a molybdenum raw material, a phosphorus raw material and a vanadium raw material in a solvent to obtain a solution or slurry, and heating it at 30 to 80 ° C. The dried product contains cubic and triclinic crystals of heteropolyacid)
(B) A step of preparing the B liquid by mixing the antimony raw material and the A liquid (c) preparing a C liquid that is a solution or slurry containing at least one selected from an alkali metal element and an alkaline earth metal element. Step (d) Step of mixing the B solution and the C solution
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007218127A JP4895303B2 (en) | 2007-08-24 | 2007-08-24 | Method for producing catalyst for producing methacrylic acid, catalyst for producing methacrylic acid, and method for producing methacrylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007218127A JP4895303B2 (en) | 2007-08-24 | 2007-08-24 | Method for producing catalyst for producing methacrylic acid, catalyst for producing methacrylic acid, and method for producing methacrylic acid |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009050770A JP2009050770A (en) | 2009-03-12 |
| JP2009050770A5 true JP2009050770A5 (en) | 2011-08-25 |
| JP4895303B2 JP4895303B2 (en) | 2012-03-14 |
Family
ID=40502344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007218127A Active JP4895303B2 (en) | 2007-08-24 | 2007-08-24 | Method for producing catalyst for producing methacrylic acid, catalyst for producing methacrylic acid, and method for producing methacrylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4895303B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5424914B2 (en) * | 2010-01-28 | 2014-02-26 | 三菱レイヨン株式会社 | Catalyst for producing methacrylic acid, method for producing the same, and method for producing methacrylic acid |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57179007A (en) * | 1981-04-24 | 1982-11-04 | Sumitomo Chem Co Ltd | Novel heteropolyacid, its manufacture and its using method |
| JPS60209259A (en) * | 1984-04-03 | 1985-10-21 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for oxidation and its preparation |
| JPH0733344B2 (en) * | 1986-12-06 | 1995-04-12 | 旭化成工業株式会社 | Method for producing methacrylic acid and / or methacrolein |
| JPH0631172A (en) * | 1992-07-15 | 1994-02-08 | Daicel Chem Ind Ltd | Catalyst for production of methacrylic acid |
| JPH09290162A (en) * | 1996-04-26 | 1997-11-11 | Mitsubishi Chem Corp | Production of oxidation catalyst and production of methacrylic acid |
| JP3995381B2 (en) * | 1999-02-08 | 2007-10-24 | 三菱レイヨン株式会社 | Catalyst for producing methacrylic acid and method for producing methacrylic acid |
| JP3763246B2 (en) * | 2000-04-06 | 2006-04-05 | 住友化学株式会社 | Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid |
| JP2003154273A (en) * | 2001-11-21 | 2003-05-27 | Mitsubishi Rayon Co Ltd | Method for manufacturing catalyst for manufacture of methacrylic acid, catalyst for manufacture of methacrylic acid and method for manufacturing methacrylic acid |
| JP2004008834A (en) * | 2002-06-03 | 2004-01-15 | Mitsubishi Rayon Co Ltd | Method for producing catalyst for use in manufacturing methacrylic acid |
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2007
- 2007-08-24 JP JP2007218127A patent/JP4895303B2/en active Active
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