| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of high practical usability usable for industrial production, in a method of producing D-tartaric acid or salts thereof at a high yielding amount and a high yielding ratio from 4-keto-D-arabonic acid or salts thereof. <P>SOLUTION: The method of producing the D-tartaric acid or salts produces the D-tartaric acid or salts in a reaction liquid, by bringing a carbonate into aerobic contact with an aqueous solution containing the 4-keto-D-arabonic acid or salts thereof, in the method of producing the D-tartaric acid or salts thereof from the 4-keto-D-arabonic acid or salts thereof. <P>COPYRIGHT: (C)2012,JPO&INPIT |
