| 摘要 |
Methacrylic acid(I) were produced from methacrolein(II) by oxidn. with mol. O in the vapor phase using as catalysts A12O3-supported XaYbMo12PcAsdox (x = u, Ti, Nb, Re, Zn or Ga: Y = Cu, Ag, Ta, In, Th, Cd, Tl, NH4, Ni, rare earth or alk. earth: 0.001<10, 0.01NbMPAs23 ≦̸
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