US 9,809,660 B2
Polymerization product pressures in olefin polymerization
John D. Hottovy, Porter, TX (US); Scott E. Kufeld, Houston, TX (US); and Joel A. Mutchler, Kingwood, TX (US)
Assigned to Chevron Phillips Chemical Company, LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Feb. 22, 2017, as Appl. No. 15/439,332.
Application 15/439,332 is a continuation of application No. 15/148,401, filed on May 6, 2016, granted, now 9,605,095.
Application 15/148,401 is a continuation of application No. 14/810,734, filed on Jul. 28, 2015, abandoned.
Application 14/810,734 is a continuation of application No. 14/447,973, filed on Jul. 31, 2014, granted, now 9,120,886.
Application 14/447,973 is a continuation of application No. 13/886,893, filed on May 3, 2013, granted, now 8,871,886.
Application 15/148,401 is a continuation in part of application No. 12/699,729, filed on Feb. 3, 2010, granted, now 9,358,515.
Application 15/148,401 is a continuation in part of application No. 15/439,332, filed on Feb. 22, 2017.
Application 15/439,332 is a continuation in part of application No. 15/169,190, filed on May 31, 2016.
Application 15/169,190 is a continuation of application No. 12/699,729, filed on Feb. 3, 2010, granted, now 9,358,515.
Prior Publication US 2017/0158784 A1, Jun. 8, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/00 (2006.01); C08F 210/00 (2006.01); B01J 19/00 (2006.01); C08F 10/02 (2006.01)
CPC C08F 10/02 (2013.01) [C08F 2400/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process for pressure management of a polymerization product comprising a liquid phase and a solid phase, the process comprising:
reducing, at a location downstream of a polymerization reactor and upstream of a flashline heater, a pressure of the polymerization product to less than a bubble point pressure of at least one component of the liquid phase.