Rabin & Berdo, P.C.
Method and device for purifying 1,4-bis (bromodifluoromethyl) benzene
A method and a device for purifying 1,4-bis(bromodifluoromethyl)benzene are disclosed. In order to solve the problem of hard to purify and separate 1,4-bis(bromodifluoromethyl)benzene crude products, diphenylmethane that has a higher boiling point and does not interact with 1,4-bis(bromodifluoromethyl)benzene is mixed with the 1,4-bis(bromodifluoromethyl)benzene crude products for evaporation. Afterwards, the purity of the vaporized product is detected and only that reaching an expected purity is collected to obtain high-purity 1,4-bis(bromodifluoromethyl)benzene.
Chung Shan Institute of Science and Technology
C B B B C B
C07C B01D B01D B01D C07C B01D
inventional inventional inventional inventional inventional inventional
Chung-Chien Chun-Hsu Chao-Chou Shean-Jeng
Chang Lin Tu Jong