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公开(公告)号：US10131743B2
公开(公告)日：2018-11-20
申请号：US15110050
申请日：2014-12-16
Applicant: Covestro Deutschland AG
Inventor： Klaus Lorenz , Marco Antonio Marquez-Benitez
Abstract: This invention relates to a process for preparing polyols which contain oxyalkylene units. This process comprises neutralizing a crude polyol by addition of an acid, optionally removing water, and removing the salts formed by neutralization. The crude polyol is contacted with the acid for at least 5 minutes.
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