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Archives :: Processing & Handling :: Solids Handling

Displaying 281 - 300 of 322 stories.
January 1, 2009
Portable mixers for pilot plant and small-scale production processing The PB Series pharmaceutical mixers (photo) feature a lightweight frame motor with a right-angle drive, 316 stainless-steel wetted parts, dry running mechanical shaft seal with CIP (clean in place) capabilities and vibration-free operation. Easily tailored to user requirements, the mixers can be configured with shafts up to 48-in. long...
http://www.che.com/processing_and_handling/solids_handling/blending/Focus-on-Mixing-and-Blending_4448.html
November 1, 2008
As chemical processors continue to feel the pinch of the worsening economy, particle sizing is becoming an increasingly important issue because it can impact reaction rates and productivity. With the needs of chemical-process-industries (CPI) customers in mind, manufacturers of a variety of particle sizing equipment — from classifiers to hammer mills to grinders — are enabling their products to...
http://www.che.com/processing_and_handling/solids_handling/milling_grinding_and_screening/Newsfront-Particle-sizing-When-size-matters_4312.html
September 15, 2008
Accuracy and reliability, ease of use, the ability to handle special materials and compactness are all factors to consider when purchasing weighing, proportioning and feeding equipment for use in the chemical process industries (CPI). Because each CPI application differs, there’s a host of new technologies available to suit a variety of needs. Presented here is a round up of the latest developments...
http://www.che.com/processing_and_handling/solids_handling/feeding_and_conveying/Newsfront-Weighing-In_4164.html
August 15, 2008
  Caking occurs when an easy-flowing powder becomes cohesive after storage or transport, forming agglomerates comprised of individual particles that are bonded together. As a consequence, a powder that flowed freely during packaging may contain lumps when the package is opened by a customer; a silo that readily discharges a bulk material when in continuous operation may become plugged when its feeder...
http://www.che.com/processing_and_handling/solids_handling/Solids-Processing-Prevent-Caking-and-Unintended-Agglomeration_4084.html
July 15, 2008
The incorporation of floating solids into liquids is a common challenge throughout the chemical process industries (CPI) in operations ranging from polymerization reactions to fermentation processes and water treatment. Yet, it has received much less attention in comparison to processes involving heavy solids that tend to settle. Both established and recently proven design recommendations for incorporating...
http://www.che.com/processing_and_handling/solids_handling/blending/Feature-Report-Incorporate-Floating-Solids-Into-Liquids_4011.html
June 15, 2008
In many plants that batch-blend bulk products, weigh batching is a manual, time-consuming operation in which ingredients are weighed individually before being discharged to a blender or some other process vessel. A significant number of such plants could benefit from the installation of an automated weigh-batching system. For small as well as large operations, an automated weigh-batching system can pay for...
http://www.che.com/processing_and_handling/solids_handling/Solids-Processing-Automating-Your-Weigh-Batching-System_3953.html
June 15, 2008
TubeMaster, Inc. (Louisville, Ky.; edlinks.che.com/7373-547) has filed U.S. and foreign patents for Dog-leg — claimed to be the world’s first articulating catalyst-loading...
http://www.che.com/processing_and_handling/solids_handling/feeding_and_conveying/Chementator-Catalyst-loading_3970.html
May 15, 2008
A. Alexander and F. Muzzio, Rutgers University Proper blender selection can improve the mixing of bulk solids. Be sure to consider post-blending segregation problems Mixing and blending of bulk solids occurs frequently in many industrial processes. Though small-scale mixing and blending functions were in use back in the early days of man (for example, mixing flour, salt, yeast and water to make bread)...
http://www.che.com/processing_and_handling/solids_handling/Solids-Processing-Blender-Selection-And-Avoidance-of-Post-Blender-Segregation_3867.html
April 28, 2008
Several manufacturing procedures for chemical, cosmetic, pharmaceutical or food products distribute powder-like solids during the liquid or pasty phases of operations. The systems usually used for these operations require the injection of powders in an agitation tank. Dispersion is often performed by the same tool (located on the bottom of the tank) as the one that insures (if required) the emulsion of...
http://www.che.com/processing_and_handling/solids_handling/Vacuum-Injection-of-Powders-in-the-Center-of-the-Emulsifier_3834.html
April 15, 2008
Convey tough bulk materials that tend to pack, cake, smear, break apart or fluidize, and prevent separation of blended products Flexible screw conveyors are suitable for use with most bulk materials, from sub-micron powders to large pellets, both free-flowing and non-free-flowing. They are capable of conveying bulk materials at any angle, moving over or under obstructions and through small holes in walls...
http://www.che.com/processing_and_handling/solids_handling/feeding_and_conveying/Cover-Story-Move-Difficult-to-Handle-Bulk-Materials-with-Flexible-Screw-Conveyors_3795.html
March 15, 2008
An automated and precise powder dispenser Intended for distributing resins from reservoirs into reactors, reaction blocks, and microplates, The REDI automated powder-dispensing platform (photo) is available in several configurations. These include: the REDI super, which distributes powder samples from 100 mg to 100 g with ±2% accuracy; the REDI plus, a powder pipette suited for distributing a solid...
http://www.che.com/processing_and_handling/solids_handling/Focus-on-Bulk-Solids-Storage-Handling-and-Packaging_3721.html
March 15, 2008
Scientists at the Science and Technology Facilities Council (STFC) Rutherford Appleton Laboratory (Chilton, Didcot, U.K.; edlinks.che.com/7370-573) have developed a laser-based method for the characterization of the bulk-chemical content of pharmaceutical capsules — without opening the capsules. In...
http://www.che.com/processing_and_handling/solids_handling/testing_and_modeling/Chementator-Non-invasive-detector_3744.html
February 15, 2008
The interior surfaces of your storage tanks are constantly at risk. If you walk past a tank often without giving thought to what is happening on the inside, it is because you trust the interior coating to protect not only the storage vessel, but also to protect the product being stored from any corrosion that might occur on the tank. Without a doubt, corrosion is the principal enemy of a storage vessel. It...
http://www.che.com/processing_and_handling/solids_handling/bins_silos_and_storage/Tank-Coatings-Covering-the-Basics-of-Selection-and-Specification_3665.html
December 15, 2007
At the Chem Show last month (New York; Oct. 30 – Nov. 1), Resodyn Acoustic Mixers Inc. (Butte, Mont.; edlinks.che.com/6902-531) demonstrated its new, impeller-free mixing technology, which induces microscale turbulence through the propagation of acoustic waves. Dubbed ResonantAcoustic Mixing (RAM), the now commercially available process promises solutions for many of the complications associated with...
http://www.che.com/processing_and_handling/solids_handling/Chementator-Resodyn-Unveils-Entirely-New-Mixing-Technology-_3549.html
December 15, 2007
Scales are available in a dizzying array of types and sizes to suit different needs. Although it’s easy to default to price in order to eliminate the tedious task of researching your options, a basic knowledge of these ten key factors can help you secure the scale with the best overall value and utility for your specific application. #1: Primary Use Determining the proper style and size of the scale...
http://www.che.com/processing_and_handling/solids_handling/weighing/Solids-Processing-Weighing-Your-Options-The-10-Most-Important-Scale-Considerations_3564.html
November 15, 2007
A molecular testing method that attains a viable count of microbial organisms in as little as 4 h compared to the typical 3–14...
http://www.che.com/processing_and_handling/solids_handling/Microbial-testing_3506.html
November 15, 2007
A new process to produce titanium, called the TiRO process, has been developed by a team from CSIRO (Melbourne, Australia; edlinks.che.com/6901-538) through its Light Metals Flagship. The process is said to halve the cost of producing titanium metal components by: 1) Replacing the conventional Kroll-batch process with a more continuous process based on fluidized-bed (FB) technology; and 2) Using Ti’s...
http://www.che.com/processing_and_handling/solids_handling/A-less-expensive-way-to-produce-titanium_3512.html
October 1, 2007
Throughout the +100-year history of the chemical engineering profession, there have been numerous examples of a single individual making a breakthrough discovery or contributing a key theory to the field. The awareness of such “single-handed” contributions, however, has certainly diminished in recent years. An increasing proportion of research, even at the academic level, is sponsored by...
http://www.che.com/processing_and_handling/solids_handling/Honoring-a-bulk-solids-pioneer_3396.html
October 1, 2007
Click here for full pdf version of this article - includes all graphs, charts, tables, and author information   Explosion prevention must be a primary objective wherever the process of transferring powders into flammable solvents is utilized, irrelevant of the industry and existing practices, in accordance with regulatory guidelines such as the ATEX directives (Directive 94/9/EC, 1994 and Directive...
http://www.che.com/processing_and_handling/solids_handling/feeding_and_conveying/Prevent-Explosions-During-Transfer-Of-Powders-Into-Flammable-Solvents_3394.html
September 1, 2007
    The screening process has always been the workhorse for solid-solid separation in chemical, pharmaceutical, food, mineral processing, coal and agricultural sectors. It can be done in dry or wet mode depending on the state of the feed and desired state of the product. It serves many purposes, for example scalping, separation of fines and coarse, dewatering, de-sliming and trash removal. Some...
http://www.che.com/processing_and_handling/solids_handling/milling_grinding_and_screening/Dry-Screening-Sorting-Out-The-Basic-Concepts_3370.html
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