Title: Method for producing bis-(4-hydroxyaryl) alkanes
Application Number: 98812370 Application Date: 1998.12.08
Publication Number: 1282312 Publication Date: 2001.01.31
Approval Pub. Date: 2003.09.24 Granted Pub. Date: 2003.09.24
International Classifi-cation: B01J8/06;C07C37/20;C07C39/16
Applicant(s) Name: Bayer Aktiengesellschaft Address:
Inventor(s) Name: R. Eek;K. Hallenberger;C. Mendoza-Frohn
Attorney & Agent: luo hong
Abstract:
    The present invention relates to a process for the production of bis(4-hydroxyary)alkanes by an acid-catalysed reaction between aromatic hydroxy compounds and ketones, in which the temperature, ketone content and water content of a liquid reaction mixture are adjusted by means of a suitably composed gas phase.
Time: 17