发明名称 Process for preparing 2,5-dihydroxyterephthalic acid
摘要 The present invention provides a process for preparing 2,5-dihydroxyterephthalic acid which comprises reacting a dialkali metal salt of hydroquinone with carbon dioxide in a reaction medium in the presence of a potassium salt represented by formula (I): CnH2n+1COOK  (I) wherein n is an integer of 1-17. According to the process for preparing 2,5-dihydroxyterephthalic acid of the present invention, 2,5-dihydroxyterephthalic acid can be produced both safely and at a low cost under industrially advantageous conditions. Further, the process according to the present invention causes less damage to reaction equipment and the like.
申请公布号 US8680325(B2) 申请公布日期 2014.03.25
申请号 US201213482241 申请日期 2012.05.29
申请人 KITA YUSUKE;OTSUKA RYOICHI;UENO FINE CHEMICALS INDUSTRY, LTD. 发明人 KITA YUSUKE;OTSUKA RYOICHI
分类号 C07C51/15 主分类号 C07C51/15
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