Invention Grant
- Patent Title: Process for purifying perfluorinated products
- Patent Title (中): 净化全氟化产物的方法
-
Application No.: US11755367Application Date: 2007-05-30
-
Publication No.: US08771626B2Publication Date: 2014-07-08
- Inventor: Mark Brandon Shiflett , Akimichi Yokozeki
- Applicant: Mark Brandon Shiflett , Akimichi Yokozeki
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C01B21/06
- IPC: C01B21/06 ; C01B21/088 ; C01B7/00 ; C01B9/08 ; B01D53/56 ; B01D53/86 ; C01B21/00 ; B01D53/50 ; B01D53/68 ; B01D53/70
Abstract:
This invention relates to a process for purifying at least one of perfluoromethane and nitrogen trifluoride from a mixture thereof using an ionic liquid. The process may be performed by a technique such as extractive distillation or absorption wherein at least one ionic liquid is used as the entraining agent or absorbent, respectively.
Public/Granted literature
- US20070297965A1 PROCESS FOR PURIFYING PERFLUORINATED PRODUCTS Public/Granted day:2007-12-27
Information query
