发明授权
- 专利标题: Process for producing dihydroxynaphthalenes
- 专利标题(中): 制备二羟基萘的方法
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申请号: US309671申请日: 1989-02-03
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公开(公告)号: US4962241A公开(公告)日: 1990-10-09
- 发明人: Masaaki Yasuda , Hisaya Miki
- 申请人: Masaaki Yasuda , Hisaya Miki
- 申请人地址: JPX Tokyo
- 专利权人: Mitsui Petrochemical Industries, Ltd.
- 当前专利权人: Mitsui Petrochemical Industries, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-146445 19870612
- 主分类号: B01J27/02
- IPC分类号: B01J27/02 ; B01J27/06 ; B01J27/138 ; B01J31/04 ; C07B61/00 ; C07C27/00 ; C07C37/055 ; C07C39/14 ; C07C67/00 ; C07C67/055 ; C07C409/08
摘要:
The process of the present invention for producing dihydroxynaphthalenes comprises hydrolyzing a diacyloxynaphthalene in a water-containing solvent in the presence of an acid catalyst. The use of an acid as a hydrolyzing catalyst enables dihydroxynaphthalenes to be obtained with high purity and in high yield.
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