The present invention provides a process for cooling a polymerization reactor having at least four leg jackets. In the four leg jacket embodiment, the process comprises pumping a first coolant through a first pair of leg jackets, and pumping a second coolant through a different pair of leg jackets. In...http://www.google.ca/patents/US7678341?utm_source=gb-gplus-sharePatent US7678341 - Loop reactor heat removal
