PROBLEM TO BE SOLVED: To solve a problem wherein a further economical and effective method for purifying a compound containing an impurity having ≤1.2 relative volatility is continuously required.SOLUTION: This method of purification comprises removing an impurity from a group of compounds having similar volatility, to produce an ultrahigh purity compound.

Title
Method of purification by using micro-channel device
Application Number
2008-176576
Publication Number
2009-035540
Application Date
July 7, 2008
Publication Date
February 19, 2009
Inventor
Ware Robert A
Shenai Khatkhate Deodatta V
Maroldo Stephen G
Lipiecki Francis Joseph
Assignee
Rohm &Amp Haas Co
IPC
C07B 63/00
B01J 19/00
C07C 69/653
C07C 67/54