Patent ID: 8889088

Claim:
A facility comprising: a butanal production and utilization facility adapted to produce n-butanal and products derived therefrom and iso-butanal as a by-product, and a methacrylic acid production and utilization facility including: a first reactor adapted to convert a methacrolein precursor into methacrolein, to produce a methacrolein-containing stream; a separate iso-butanal by-product-containing stream comprising the iso-butanal by-product, and a second reactor having an input configured to receive the methacrolein-containing stream and the iso-butanal by-product-containing stream, wherein the second reactor is further adapted to simultaneously convert a mixture of methacrolein and iso-butanal into methacrylic acid with substantially quantitative conversion of the iso-butanal, where the second reactor uses a heteropolyacid catalyst capable of simultaneously oxidizing a mixture comprising methacrolein and iso-butanal to methacrylic acid with substantially quantitative conversion of the iso-butanal, where the heteropolyacid catalyst comprises at least Mo, P, V, Bi, B, and Cu, where the butanal production and utilization facility and the methacrylic acid production and utilization facility form an integrated facility.