发明授权
- 专利标题: Method for eliminating color forming impurities from nitro compounds
- 专利标题(中): 消除硝基化合物形成杂质的方法
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申请号: US12934803申请日: 2009-04-08
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公开(公告)号: US08207382B2公开(公告)日: 2012-06-26
- 发明人: Daniel M. Trauth , Edward L. Little , Richard L. James , John D. Gummere , Morteza Mokhtarzadeh , Li Wang
- 申请人: Daniel M. Trauth , Edward L. Little , Richard L. James , John D. Gummere , Morteza Mokhtarzadeh , Li Wang
- 专利权人: Dow Global Technologies LLC,ANGUS Chemical Company
- 当前专利权人: Dow Global Technologies LLC,ANGUS Chemical Company
- 国际申请: PCT/US2009/039903 WO 20090408
- 国际公布: WO2009/129098 WO 20091022
- 主分类号: C07C27/26
- IPC分类号: C07C27/26 ; C07C205/00
摘要:
A method for stabilizing nitro compounds against discoloration. The method comprises reacting nitro compounds containing color-forming impurities with nitric acid, neutralizing and washing the product, and distilling therefrom purified nitro compounds.
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