John Pendergast, ChE Professional in Residence, Leads Team from Dow to U.S. Patent
Congratulations go to John Pendergast, who serves as a Professional in Residence for
our department, on receiving Patent No. US 10,6256,097, "Process for Making Hydroxyethyl
Piperazine Compounds." John was the lead inventor on the team from Dow who filed for
the patent. The invention relates to an improved process for making hydroxyethyl piperazine
compounds, especially mono-hydroxyethyl piperazine. The improvement comprises reacting
piperazine and an alkylene oxide, preferably ethylene oxide in a reactive distillation
column.