www.chemengonline.com October 2017 Cover Story 43 Part 1 Feeder Design for Solids Handling Processes involving the movement of bulk solid materials require careful consideration of the feeder equipment design, including how the feeders work with various bins and hoppers 51 Part 2 Choosing Agglomeration Processes A product's intended use often dictates what type of agglomeration equipment should be used. Presented here is a discussion of the main types of equipment and methods for forming agglomerates In the News 7 Chementator Liquid metal membranes improve on Pd membrane for separating hydrogen; A mag-drive pump that handles suspended solids; Making graphene from graphite without oxidation; Accelerated decomposition of halogenated compounds; Commercial launch for MOF-based gas storage; and more 13 Business News AkzoNobel opens paint manufacturing facility in the U.K.; Solvay to begin PEKK production in the U.S.; Ineos announces plans to construct VAM plant in Europe; Air Products forms JV with Lu'An Clean Energy in China; Aveva to merge with Schneider Electric; and more 16 Newsfront The Greening of Chlor-Alkali Production Environmental regulations and high energy costs are driving technology advances to make chlor-alkali plants cleaner and more efficient 22 Newsfront New Performance Materials Solve Industrial Challenges From additives to polymers to coatings to 3-D printables, new materials improve performance Technical and Practical 40 Facts at your Fingertips Air-Separation Processes This one-page reference describes cryogenic and non-cryogenic approaches to separating the components of air for industrial use 42 Technology Profile Vinyl Acetate from Acetic Acid and Ethylene This process description outlines the manufacture of vinyl acetate monomer from acetic acid and ethylene 60 Feature Report: Fluid Sealing Part 1 Valves: Emissions Standards and Current Practices New industry standards aimed at reducing fugitive emissions have necessitated updates to valve-testing procedures and a renewed focus on high-performance sealing and packing technologies 64 Feature Report: Fluid Sealing Part 2 Minimizing Leakage on Heat-Exchanger Girth Flanges Thermal distortion in heat-exchanger internal components can lead to leakage, but several design measures can be taken to mitigate these concerns CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM OCTOBER 2017 1 60 16 51 43 Volume 124 | no. 10http://www.chemengonline.com http://WWW.CHEMENGONLINE.COM