发明授权
US07649111B2 Catalyst for the oxidation of a mixed aldehyde feedstock to methacrylic acid and methods for making and using same
有权
用于将混合醛原料氧化成甲基丙烯酸的催化剂及其制备和使用方法
- 专利标题: Catalyst for the oxidation of a mixed aldehyde feedstock to methacrylic acid and methods for making and using same
- 专利标题(中): 用于将混合醛原料氧化成甲基丙烯酸的催化剂及其制备和使用方法
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申请号: US11189116申请日: 2005-07-25
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公开(公告)号: US07649111B2公开(公告)日: 2010-01-19
- 发明人: Wugeng Liang , Scott A. Stevenson , Angie McGuffey , Joseph R. Linzer
- 申请人: Wugeng Liang , Scott A. Stevenson , Angie McGuffey , Joseph R. Linzer
- 申请人地址: SA
- 专利权人: Saudi Basic Industries Corporation
- 当前专利权人: Saudi Basic Industries Corporation
- 当前专利权人地址: SA
- 代理商 Robert W Strozier; Jim Wheetington
- 主分类号: C07C51/16
- IPC分类号: C07C51/16 ; C07C51/235 ; B01J27/00 ; B01J27/198 ; B01J27/19 ; B01J27/192
摘要:
A heteropolyacid catalyst for oxidation of isobutyraldehyde, methacrolein or mixtures or combinations thereof to methacrylic acid is disclosed where the heteropolyacid catalyst includes at least molybdenum (Mo), phosphorus (P), vanadium (V), and a first component including bismuth (Bi) and/or boron (B). The heteropolyacid catalyst can also optionally include a second component including potassium (K), rubidium (Rb), cesium (Cs), and/or thallium (Tl) and optionally a third component including antimony (Sb), cerium (Ce), niobium (Nb), indium (In), iron (Fe), chromium (Cr), cobalt (Co), nickel (Ni), manganese (Mn), arsenic (As), silver (Ag), zinc (Zn), germanium (Ge), gallium (Ga), zirconium (Zr), magnesium (Mg), barium (Ba), lead (Pb), tin (Sn), titanium (Ti), aluminum (Al), silicon (Si), tantalum (Ta), tungsten (W), and/or lanthanum (La). The heteropolyacid catalyst can also include an ammonium-containing compound designed to increase a value of medium pores in the final heteropolyacid catalyst. A method for oxidizing isobutanal to methacrylic acid using the heteropolyacid catalyst is also disclosed.
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