October 2018 www.chemengonline.com 10 Process Safety Distillation Simulations Acid Recovery Energy Management Pressure Vessel Calculations Cybersecurity Facts at Your Fingertips: Filtration Focus on Valves Seals Liquid-Liquid Extraction LIQUID-LIQUID EXTRACTION * PROCESS SAFETY VOL. 125 NO. 10 OCTOBER 2018http://www.chemengonline.com