| abstract |
(57) [Summary] [Structure] In the method for producing 1,4-butanediol by catalytic hydrogenation of maleic anhydride, maleic acid, succinic anhydride, succinic acid or γ-butyrolactone, the catalytic hydrogenation is ) A supported catalyst in which a noble metal of Group VIII of the Periodic Table and tin are supported on a carrier, and (2) an alkali metal compound, an alkaline earth metal compound or a nitrogen base compound. In the method for producing butanediol and the method for producing 1,4-butanediol by catalytic hydrogenation of maleic anhydride, maleic acid, succinic anhydride, succinic acid or γ-butyrolactone, the catalytic hydrogenation is ) In the presence of a supported catalyst in which a noble metal and tin of Group VIII of the periodic table and (2) an alkali metal compound or an alkaline earth metal compound are supported on a carrier. The production method of 1,4-butanediol and butterflies. [Effect] By-products such as tetrahydrofuran are extremely small, and 1,4-butanediol can be produced with high selectivity. |