AccountGuest Edition My Account My Che.com Log In

Archives :: Processing & Handling :: Solids Handling

Displaying 321 - 327 of 327 stories.
July 1, 2006
    Making sure the correct amount of material is fed to a batch reactor, bag or storage bin is important to everyone in the chemical process industries (CPI). Because the CPI cover such a broad spectrum, manufacturers are faced with a variety of factors to consider when designing weighing and feeding equipment — from increasing throughputs with more compact designs, through reducing dust...
http://www.chemengonline.com/processing_and_handling/solids_handling/feeding_and_conveying/Weighing-and-feeding-in-the-Spotlight_3077.html
May 1, 2006
    It’s an old saw, but I’ve long held that process development is very much a team effort. Developing safe, robust and scaleable chemical processes calls for close collaboration between synthesis chemists, process development engineers and pilot plant personnel. But experience shows that, particularly in many fine chemical and pharmaceutical organizations, researchers fail to put...
http://www.chemengonline.com/processing_and_handling/solids_handling/A-Bit-of-Extra-Lab-Effort-Can-Prevent-Grief-During-Scaleup_2817.html
May 1, 2006
    Accurate prediction of particulate-solids flow behavior during storage and feeding has eluded all but the most experienced solids handling experts. Often the process engineer is faced with the awkward task of making sense of bulk behavior. A powder sample held in a jar may appear to be free flowing, but hammer rash — jargon for the practice of hitting hoppers with pipes to dislodge...
http://www.chemengonline.com/processing_and_handling/solids_handling/feeding_and_conveying/Predicting-Powder-Flow-Behavior-A-New-Approach_2777.html
April 1, 2006
Most chemical processes must produce products that are uniformly mixed. There have been many articles written about preventing particle segregation during bulk solids flow; and ensuring a mass flow pattern is a common suggestion. But mass flow alone is not necessarily the answer to all segregation problems that can occur in silos and tanks. We will focus on the two major mechanisms of segregation; namely...
http://www.chemengonline.com/processing_and_handling/solids_handling/Will-Mass-Flow-Solve-All-Your-Segregation-Problems_3111.html
March 1, 2006
The presence of arsenic minerals, such as enargite and tennantite, in some copper-bearing ore bodies, can be a problem for those wishing to recover the copper. When delivering copper concentrates to smelters in Australia, for example, miners are subjected to substantial penalties if...
http://www.chemengonline.com/processing_and_handling/solids_handling/Chementator-Selective-flotation_2914.html
February 1, 2006
    In pneumatic conveying systems that operate under high positive pressure, it is common wisdom that as the downstream end is approached, the diameters of the pipeline segments should be larger. Air (or other conveying gas) is compressible, so if a single-diameter pipeline is instead used, the gas velocity will reach very high values. If the conveyed material is abrasive, the consequence can be...
http://www.chemengonline.com/processing_and_handling/solids_handling/Pneumatic-Conveying-Before-Stepping-the-Line-Look-Into-Air-Extraction_2813.html
January 1, 2006
    Successful startup and operation of solids-handling processes depend on myriad small yet fateful decisions that are made during the various phases of the project. Many of these are not quantitative but qualitative in nature, and are largely based on experience and broad-based knowledge of solids handling. It is just as important to know what not to do as it is to know what to do. Since many...
http://www.chemengonline.com/processing_and_handling/solids_handling/Guidelines-for-Solids-Storage-Feeding-and-Conveying_2773.html
Pages: « Previous  8 9 10 11 12 13 14 15 16 [17]

Get more from Che.com
Get email updates in your inbox

 

Subscribe to:
Chemical Engineering Magazine

Chemical Engineering Magazine and Archives

Plant Cost Index

Join us on... Twitter LinkedIn

LinkedIn Groups

Our LinkedIn group is now over 28,000 members strong!

  1. Join other CPI professionals from all over the globe and share best practices, expertise, concerns and more.
  2. Provide feedback to Chemical Engineering Editors


Current members represent Worley Parsons, DuPont, SABIC, Fluor, Air Products, LyondellBasell, Nalco, Dow Chemical, Dow Corning, BASF, Jacobs Engineering, ExxonMobil, Shell, Chevron and more.

Join Now



We also offer the following subgroup for more targeted discussions:

Tools
Search the Buyers' Guide

Plant Cost Index

Facts at Your Fingertips (archive)

Ask the Experts

Back Issues
X
To access this area, please log in or create an account.
Username:
Password:
Forgot your password?
Request it now.
Processing...
Live chat by BoldChat