发明授权
EP0322140B1 Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone 失效
马来酸酐与四氢呋喃和γ-丁内酯的蒸气相氢化

Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
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