| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a high-purity succinic acid which inhibits a by-product of a malic acid. <P>SOLUTION: In the method for producing the succinic acid, hydrogenation reaction is performed by incorporating an aqueous solvent and a noble metal catalyst into a pressurizing reactor, thereafter, supplying a hydrogen gas until it become a pressurized state, and then adding a maleic anhydride or maleic acid of a raw material to the reactor, wherein 10 wt.% or more of the total amount of the maleic anhydride or maleic acid, which adds to the pressurizing reactor, is added by a consecutive addition system. <P>COPYRIGHT: (C)2013,JPO&INPIT |
