A MESOPOROUS SILICA SBA-15 FUNCTIONALIZED WITH AMINE AND A PURIFICATION METHOD OF SUCCINIC ACID USING SAID MATERIAL

摘要

A mesoporous silica SBA-15 grafted with amine and a method of purifying succinic acid more efficiently and economically by using the same are provided to adsorb selectively impure organic acids generated together with succinic acid by strains in the fermentation process. A mesoporous silica SBA-15 grafted with amine is used as an adsorbent of impure organic acids in the purification process of succinic acid. The amine is a primary amine, a secondary amine, or a tertiary amine. The primary amine is 3-aminopropyltriethoxysilane, the secondary amine is N-methylaminopropyltrimethoxysilane, and the tertiary amine is 3-(N,N-dimethylaminopropyl)trimethoxysilane. A purification method of succinic acid comprises adsorbing and removing impure organic acids using the mesoporous silica SBA-15 grafted with amine as an adsorbent for adsorbing impure organic acids. The purification method comprises performing the adsorption process in the pH range of 2.0 to 2.5.