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4 August 2017 PBE powderbulk.com Powder and Bulk Engineering John W. Carson Bulk Solids Handling Jenike & Johanson Ray Cocco Particle Technology Particulate Solid Research, Inc. John A. Constance Consulting Engineer Dust and Vapor Control The Engineers Collaborative Shrikant Dhodapkar Solids Processing and Handling Specialist The Dow Chemical Company USA Daniel J. Donovan Project Manager/Findlay Dow Chemical North America William H. Engelleitner Consultant Agglomeration AME Pittsburgh Richard J. Farnish Consulting Engineer, Powder Handling The Wolfson Centre University of Greenwich Jack D. Hilbert Principal Consultant Pneumatic Conveying Pneumatic Conveying Consultants George E. Klinzing Solids Handling University of Pittsburgh Schuyler K. Marsh Consulting Engineer Drying and Pressure Filtration DuPont Brij M. Moudgil Director, Particle Engineering Research Center University of Florida Fernando J. Muzzio Director, NSF ERC on Structured Organic Particulate Systems Distinguished Professor, chemical and biological engineering Rutgers University Rachel Smith Lecturer, Department of Chemical and Biological Engineering University of Sheffield Paul E. Solt Consultant Pneumatic Conveying Pneumatic Conveying Consultants John J. Walsh Consulting Engineer Drying American Drying Consultants Editorial Advisory Board Editorial Jan Brenny Editor jbrenny@cscpub.com Kayla Carrigan Associate Editor kcarrigan@cscpub.com Christine Bernier Lienke Associate Editor clienke@cscpub.com Nate Todd Associate Editor ntodd@cscpub.com Andrew lovgren Associate Editor alovgren@cscpub.com Production and Art Harry Myers Production Manager hmyers@cscpub.com Kristin O'Daniel Production Associate kodaniel@cscpub.com Vanessa Russell Production Assistant vrussell@cscpub.com Christopher Myers Prepress Manager cmyers@cscpub.com Advertising Marybeth Stewart Mid-Atlantic & Western Sales Manager CA, ID, MD, NC, NV, Northern OH, OR, PA, VA, WA, WV mstewart@cscpub.com 541-318-4657 Kevin Clohesey Upstate New York Western & Canada Sales Manager AZ, CO, IL, MO, MT, NM, UT, WY kclohesey@cscpub.com 651-287-5602 Maggie Johnson Midwest & Southeastern Sales Manager AL, AR, FL, GA, IA, IL, IN, LA, MS, OK, SC, TN, TX mjohnson@cscpub.com 773-279-8070 Steve Egenolf Michigan & Eastern Sales Manager CT, DE, MA, MD, ME, MI, NH, NJ, NY, RI, VT segenolf@cscpub.com 847-696-9166 Bonnie Kaye Midwest Sales Manager KY, MN, ND, Southern OH, SD, WI bkaye@cscpub.com 651-213-1400 Circulation Aileen Hough VP Audience Development ahough@cscpub.com Sarah Highum PBE/PBEI Audience Associate shighum@cscpub.com Business Richard R. Cress Publisher rcress@cscpub.com Ali Hartman Administrative Assistant ahartman@cscpub.com Michelle Robinson Acctg/Oper/HR Manager mrobinson@cscpub.com Jessica Larson Acctng/Operations Administrator jlarson@cscpub.com Liz Dorry Web Content Manager ldorry@cscpub.com Kurt Beckman E-Marketing Manager kbeckman@cscpub.com www.powderbulk.com Publishing Office 1155 Northland Drive • St. Paul, MN 55120 651-287-5600 • FAX: 651-287-5650 • e-mail: powderandbulkengineering@cscpub.com ©2017 by CSC Publishing Inc. All rights reserved. No part of this publication may be reproduced or trans- mitted in any form or by any means without written permission from the publisher. Powder and Bulk Engineering assumes no responsibility for statements or opinions of editorial contributors or advertisers. Subscriptions: No charge for print or digital subscriptions to qualified readers. North American subscribers may choose either print or digital format. Those outside North America will receive digital editions. Please visit www.powderbulk.com to apply for a qualified reader subscription. Publisher reserves the right to refuse non- qualified readers. Change of address: Please contact shighum@cscpub.com or powderandbulkengineering@cscpub.com with your old address, new address and Customer ID number to change your delivery address. Please allow 6 weeks for the change to be effective. Privacy Policy: Please visit www.powderbulk.com to view our privacy policy. This appears at the bottom of the home page in the footer. Customer Service: Please email shighum@cscpub.com or powderandbulkengineering@cscpub.com to cancel a subscription, make changes or to have your questions answered. We also publish —