Emergency Runaway Reaction - What Precedes? What Follows?

Two runaway reactions occurred in BASF within the last five years, fortunately only with property damage. In one case an intermediate product decomposed during synthesis of a chelating agent. In the second case a polymerization occurred in the semi-batch production of an Epoxy Acrylate. The course of events and causes of the incidents will be presented in detail and lessons learned will be discussed.