ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
RE-free magnets Tetrataenite (L10-FeNi) is a promising alternative to rare-earth-…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment PDF Solids Handling

Industrial Crystallization for the CPI

By Michel Malfand |

This overview presents the traditional and emerging types of continuous crystallizers Crystallization is an important technique for the purification of solids in the chemical process industries (CPI). The operation can be performed batchwise or in continuous operation, and is used for a wide variety of products, ranging from sugar, salts and other bulk chemicals, to pharmaceuticals and other fine chemicals. This article provides an overview of the most important types of continuous crystallizers, with a brief summary of the pros and cons of each type.   Generating supersaturation Crystallization from solution is done by creating a supersaturated solution of the product in the solvent. Creating the supersaturation condition can be achieved by any (or a combination) of the following methods: Evaporation Cooling (adiabatic) Cooling (surface) Cooling (by gas injection) Reactive Anti-solvent addition pH adjustment   Types of crystallizers For continuous operation, the main crystallizers in operation in the CPI include the following (for more details, see Ref. 1–4): Forced circulation (FC) Draft tube baffle (DTB) Oslo Indirect forced circulation (IFC) Forced circulation (FC). An FC crystallizer (Figure…
Related Content
Size Reduction: Improving the Daily Grind
New milling, grinding and size-reduction equipment helps processors obtain better efficiencies and develop new products Although milling and size-reduction equipment…
Bulk-Solids Handling
Hoppers promote effective flow of challenging materials The Live Bin product line (photo) includes fully assembled and self-contained vibrating hoppers…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Trinseo Digitizes Control System Migration Projects to Achieve Fast ROI
Purdue University Saves $400,000 Annually with Local Vacuum Networks
Bag filter Housings/Vessels
Innovative Backwashable Media Filter
Automated Vertical Tower Filter Press

View More

Live chat by BoldChat