| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for stably maintaining qualities of an amide compound having an unsaturated bond by selectively removing the polymerized product of an amide compound having an unsaturated bond, without substantially increasing the impurity content of the amide compound having an unsaturated bond which is industrially important, and without additionally installing expensive equipment. <P>SOLUTION: The aqueous solution of an amide compound having the unsaturated bond, which is industrially important, is subjected to an activated carbon treatment so as to selectively remove only the polymerized product of (meth)acrylamide from the aqueous solution of the amide compound having an unsaturated bond. <P>COPYRIGHT: (C)2012,JPO&INPIT |
