HPPO Ipt Srl’s Innovative Slurry Reactor Technology For Propylene Oxide: A Smarter Alternative To Fixed-bed Systems IPT Srl’s HPPO process for the production of Propylene Oxide (PO) is developed based on a slurry-phase reaction in a Continuous Stirred Tank Reactor (CSTR). This July 22, 2025 35 Comments