Seeking help with the alkaline saponification process for propylene oxide diaphragms?
Thread Content
This post was last edited by sunjl1981 on 2013-1-6 22:32. Seeking help with the alkaline saponification process for propylene oxide diaphragms? # ， ， &
It is technically feasible to use liquid caustic instead of lime milk for the saponification process to produce propylene oxide, but controlling the reaction rate remains a challenge; it is not clear whether there is any mature experience in this area in China – it has always been just an idea up to now. Moreover, it is only effective to recover sodium chloride from the caustic solution.
I heard that Jinhua has such technology; I wonder if it has been put into industrial use yet?
Why hasn’t anyone discussed the alkaline saponification process for propylene oxide diaphragms?
Using liquid alkali for saponification is theoretically feasible, but from a cost perspective it is not viable in industrial applications. I visited Jinxi some time ago, and lime is still being used there today.