公开(公告)号：US20070270609A1

公开(公告)日：2007-11-22

申请号：US11497283

申请日：2006-08-02

申请人： Yang-Ho Chenon ,  Young-Gye Choi ,  Ik-Hyun Kwon

发明人： Yang-Ho Chenon ,  Young-Gye Choi ,  Ik-Hyun Kwon

IPC分类号： C07C51/16 ,  C07C51/255

CPC分类号： C07C51/265 ,  Y02P20/582 ,  C07C63/38

摘要： A method for producing naphthalenedicarboxylic acid comprising the steps of: dissolving 2,6-dimethylnaphthalene in acetic acid solvent; oxidizing the product from the dissolution process using oxygen and a diluent gas; crystallizing naphthalenedicarboxylic acid that has been produced from the oxidation process; and separating the crystallized naphthalenedicarboxylic acid, wherein the amount of the diluent gas being discharged from and recycled to the oxidation process is controlled during the oxidation process, and the amount of mother liquor being recycled to the dissolution process after crystallization is controlled during the separation process, is provided.

摘要翻译： 一种生产萘二甲酸的方法，包括以下步骤：将2,6-二甲基萘溶于乙酸溶剂; 使用氧气和稀释气体从溶解过程中氧化产物; 结晶从氧化过程产生的萘二甲酸; 并分离结晶的萘二甲酸，其中在氧化过程中控制从氧化过程中排出并再循环的稀释气体的量，并且在分离过程期间控制结晶后再循环到溶解过程中的母液的量 ，被提供。