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Ralf Dr. Zerrer is a Philosophy student at Albert-Ludwigs-Universität Freiburg im Breisgau since January 2022 and a retired Senior Technology Specialist at Clariant since August 2021. Prior to retirement, Ralf held various leadership positions at Clariant, including Senior Technology Specialist, Global Business Director, and Head of Strategic Marketing and Innovation in Industrial & Consumer Specialties. Ralf's tenure at Clariant extended from 1998 to 2021, with significant roles such as Head of Strategic Marketing and Global R&D Director. Previous experience includes positions at Hoechst AG and Cassella, where Ralf contributed as Project Manager and R&D Manager, respectively. Ralf earned a Doctor of Philosophy in Chemistry from the University of Stuttgart between 1982 and 1991.