Purification of propylene glycol monoalkyl ether
The invention is a method of purifying a propylene glycol monoalkyl ether containing carbonyl impurities which comprises contacting the propylene glycol monoalkyl ether stream in the liquid phase with a carbon adsorbent, and recovering a purified propylene glycol monoalkyl ether product. The purification method improves product quality and reduces the amount of carbonyl impurities in the propylene glycol monoalkyl ether.
Lyondell Chemical Technology, L.P.
C
C07C
inventional
Xiangmin Lawrence M.
Li Candela