Patent ID: 6620975
Filing Date: 2003-09-16
Classification: C07C,Y02P

Abstract:
A process for the production of n-butyl glycol ether which comprises:i. forming a mixture of n-butenyl glycol ether and secondary butenyl glycol ether by reacting butadiene with a saturated aliphatic glycol in the presence of a heterogeneous catalyst which is modified by the addition of at least one counterion selected from the group consisting of: an alkyl pyridinium, quaternary ammonium, quaternary arsonium and quaternary phosphonium; ii. separating the n-butenyl glycol ether and secondary butenyl glycol ether formed in step i), and iii. hydrogenating the n-butenyl glycol ether separated in step ii) in the presence of a catalyst to the corresponding n-butyl glycol ether.