公开(公告)号：US5055612A

公开(公告)日：1991-10-08

申请号：US451952

申请日：1989-12-19

申请人： Yakudo Tachibana ,  Kazuhiko Tate ,  Masami Ono ,  Nobuhiro Takei ,  Jun Miki ,  Hiroaki Taniguchi ,  Yoshimi Shiroto ,  Misunori Shimura ,  Yoshio Fukui

发明人： Yakudo Tachibana ,  Kazuhiko Tate ,  Masami Ono ,  Nobuhiro Takei ,  Jun Miki ,  Hiroaki Taniguchi ,  Yoshimi Shiroto ,  Misunori Shimura ,  Yoshio Fukui

IPC分类号： C07C51/265

CPC分类号： C07C51/265

摘要： A process for the preparation of naphthalene mono or polycarboxylic acids, such as 2,6-naphthalene dicarboxylic acid, is disclosed which includes oxidizing a naphthalene compound such as 2,6-diisopropylnaphthalene in a specific solvent with molecular oxygen in the presence of a catalyst containing a heavy metal compound and a bromine compound. The solvent is an aliphatic monocarboxylic acid and may further contain benzene and/or water. By controlling the ratio of the amount of catalyst metal to the feed rate of the raw material naphthalene compound, the yield of desired product can be controlled.

摘要翻译： 公开了一种制备萘一或多羧酸如2,6-萘二甲酸的方法，其包括在催化剂存在下用分子氧在特定溶剂中氧化萘化合物如2,6-二异丙基萘 含有重金属化合物和溴化合物。 溶剂是脂族单羧酸，并且还可以含有苯和/或水。 通过控制催化剂金属的量与原料萘化合物的进料速率的比例，可以控制所需产物的收率。