Invention Grant
- Patent Title: Method for eliminating color forming impurities from nitro compounds
- Patent Title (中): 消除硝基化合物形成杂质的方法
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Application No.: US12934803Application Date: 2009-04-08
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Publication No.: US08207382B2Publication Date: 2012-06-26
- Inventor: Daniel M. Trauth , Edward L. Little , Richard L. James , John D. Gummere , Morteza Mokhtarzadeh , Li Wang
- Applicant: Daniel M. Trauth , Edward L. Little , Richard L. James , John D. Gummere , Morteza Mokhtarzadeh , Li Wang
- Assignee: Dow Global Technologies LLC,ANGUS Chemical Company
- Current Assignee: Dow Global Technologies LLC,ANGUS Chemical Company
- International Application: PCT/US2009/039903 WO 20090408
- International Announcement: WO2009/129098 WO 20091022
- Main IPC: C07C27/26
- IPC: C07C27/26 ; C07C205/00
Abstract:
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.
Public/Granted literature
- US20110105806A1 METHOD FOR ELIMINATING COLOR FORMING IMPURITIES FROM NITRO COMPOUNDS Public/Granted day:2011-05-05
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