August 2019 www.chemengonline.com 08 Industrial Gas Purification Valve Reliability Facts at Your Fingertips: Heat Transfer Controlling Dust Focus on Pipes, Tubes and Fittings Titanium Dioxide Production Mixing page 24 MIXING * INDUSTRIAL GAS PURIFICATION VOL. 126 NO. 8 AUGUST 2019http://www.chemengonline.com