| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a process suitable for industrial production of 2,6-dihydroxybenzoic acid by a reaction of resorcin and carbon dioxide in the presence of an alkali metal compound at a favorable production rate even under mild conditions. <P>SOLUTION: The process for production of 2,6-dihydroxybenzoic acid includes reacting resorcin with carbon dioxide in the presence of the alkali metal compound, wherein the ratio of (A) the total mole number of resorcin and a univalent phenol in the presence or absence of the univalent phenol and (B) the mole number of the alkali metal of the alkali metal compound, (A)/(B), is in a range of 2.2 through 100. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
