Applicazioni: Essiccatori
Spray drying cemented tungsten carbide
Cemented carbide is a hard material and famous for its good fracture toughness as well as extraordinary wear resistance. Major components of cemented carbide are tungsten carbide (WC) as a metal carbide and cobalt (Co) as a soft binder. It shows unique characteristics, such as high strength at elevated temperature, mechanical and chemical resistance. These properties render carbide tools appropriate for cutting, drilling, mining and machining. Of course, various kinds of other material carbides (titanium carbide, tantalum carbide, chrome carbide etc.) could be added.The conventional manufacturing process of cemented carbide includes wet milling of raw materials, spray drying, pressing, debinding and presintering, sintering, and finishing.In this application, we will highlight the important spray drying step to obtain WC/Co dried powder using the BUCHI Mini Spray Dryer B-290.
Stabilizing oligonucleotides for long-term storage by freeze-drying
Freeze-drying preserves their integrity and extends shelf life of Oligonucleotides, short DNA or RNA sequences. Using the Lyovapor™ L-250, 50 mL Falcon tube samples were rapidly frozen in liquid nitrogen and dried in a 12-port manifold at 0.1 mbar, producing stable pellets in 16 hours. Multiple trials showed reproducible results, demonstrating reliable vacuum control, and effective vapor trapping.
Freeze-dried Okra Vegetable
Okra (Abelmoschus esculentus), due to its high moisture content and sensitive structure, is difficult to dehydrate using conventional drying techniques. This application note evaluates the freeze-drying of okra using the Lyovapor™ L-210 freeze-dryer. The low-temperature, low-pressure drying process enables efficient moisture removal by sublimation, resulting in dried okra with low residual moisture and well-preserved structure and appearance. The high-quality freeze-dried okra can stored safely and used for functional food applications






