Separation Processes
Thin-Film Drying Offers Deep Benefits
Thin-film drying is a continuous drying technology that is safe, flexible and offers many benefits, including low operating costs, low space requirements and high specific-evaporation capacity Contact agitated dryers are used for drying wet powders, slurries, filter cakes, and applications…
Improve processing times with this homogenizer
Featuring a new homogenizer generation, the FrymaKoruma Dinex vacuum-processing unit provides optimal processing times, droplet distribution and product quality. The improved tool geometry enables the product processing time in the homogenizer to be extended and increases the overall efficiency of…
Design practices committee
Where do middle boilers go? If you answered, “Nobody knows”, then you’re wrong. FRI’s Design Practices Committee (DPC) knows — and they’re willing to share. The DPC was formed in 1975. It originally contained just six members. Neil Yeoman was…
Spray Drying Parameters
Among the most widely used technologies in the chemical process industries (CPI), spray drying involves dispersing a liquid or slurry in a hot gas to produce a dry powder product. A wide range of pumpable solutions, suspensions and emulsions can…
Distillation: Avoid Problems During Tower Startup
A variety of performance problems can arise in distillation towers during startup. Many are caused by equipment, hardware or process conditions. Hardware issues may be related to instrumentation, tower internals or ancillaries. Instrumentation malfunctions are also common during startup and…
Magic trays, brown solvent
Every five years or so, a call would come in and once again I would be troubleshooting a certain extraction unit in Canada — usually in the dead of winter. This particular unit had a liquid-liquid extractor, a stripper, a…
Acid gas absorption expert
I will bet that many readers are familiar with a Teddy Roosevelt quote that includes the following: “It is not the critic who counts…the credit belongs to the man who is actually in the arena...” Ralph Weiland has been in…
A fluidized-bed dryer that is ideal for sensitive products
A vibrating fluidized-bed dryer from this company features multiple temperature-control zones that operate independently to permit a variety of different heating and cooling levels in the same continuous-drying system. The unit is ideal for gently drying grains, cereals, dry foods,…
Packing must fail
For the first half of my career, I worked in a group that developed, designed and sold distillation trays. Late during the 1970s, half of that group’s business disappeared — almost overnight — when structured packing replaced trays in very…
This filter media performs sterilizing-grade bacteria retention
Sterilizing-grade filters from this company have all-metal construction, and can perform filtration that meets the requirements of ASTM standard F838-05 for bacterial retention. The sintered, porous-metal filter media products are biocompatible, impervious to solvents and can be used with most…