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Avoiding Caking and Unwanted Agglomeration of Powders

Avoiding Caking and Unwanted Agglomeration of Powders

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$95.00

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Details

Title: Avoiding Caking and Unwanted Agglomeration of Powders

Duration: 60 minutes, delivered in a CD-ROM

Price: $95

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Webinar Summary:

Caking occurs when powders agglomerate when stored at rest. Problems involving caking can be challenging to solve, as its occurrence is not immediately evident. A product may be free flowing during packaging; yet customers will report observing lumps in the product. Operators who had no problems handling a powder when the plant was operating continuously may find that it will not discharge from a bin or silo after the plant had been shut down over a weekend.

The best metric for quantifying caking is not necessarily apparent. Investigators may attempt to measure the number of lumps in a container of powder or the material’s particle size distribution. The team will quickly realize that the strength of the agglomerated material is important to measure, but how to measure it is not obvious. Identifying a process control variable or product specification that eliminates caking is difficult if a response is not quantifiable. If the likely mechanisms that cause caking are known, a hypothesis can be formulated, and tests can be conducted to either validate or refute the hypothesis. Once the cause is known, control variables or product specifications that minimize caking can be identified.

Viewers will learn:

  • Mechanisms behind caking
  • Test methods for quantifying caking
  • Appropriate actions to minimize or eliminate caking

Who Should Attend:

  • Process engineers
  • Production engineers
  • Quality control personnel
  • R&D scientists and engineers
  • Product line engineers

Hear from this expert:

Greg Mehos

Greg Mehos is a senior project engineer at Jenike & Johanson, Inc. (400 Business Park Drive, Tyngsboro, MA 01886; Phone: 978-649-3300; email: gmehos@jenike.com) and an adjunct professor at the University of Rhode Island.  He has been involved in a wide range of bulk solids handling projects, including the design or hoppers, gasifiers, dryers, and moving bed reactors.  He received his B.S. and Ph.D. degrees from the University of Colorado and his masters degree from the University of Delaware, all in chemical engineering.  He served on the executive board of AIChE’s Particle Technology Forum and is a past chair of the Boston AIChE section.  He is a registered Professional Engineer in Massachusetts.

Moderator:

scott jenkins
Scott Jenkins
Senior Editor
Chemical Engineering magazine

Scott Jenkins has been an editor at Chemical Engineering since 2009. Prior to joining CE, Scott worked in various capacities as a science journalist and communications specialist, reporting and writing on a variety of sectors, including chemical processing, biotechnology, pharmaceutical manufacturing and research policy. He also has industry experience as a quality assurance chemist and research experience as a synthetic organic chemist. Scott holds a bachelor’s degree from Colgate University, and a master’s degree in chemistry from the University of North Carolina at Chapel Hill.



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