The working principle of glass lined evaporators
Highly corrosive products require special Cr-Ni base alloys or special construction materials such as titanium or tantalum for product wetted parts. On the other hand, some products are metal-active and do not allow metal contact.
For processing heat-sensitive products at high vacuum and short residence times, VTA offers wiped film and short path evaporation technology with product contacting parts made of enamel (glass lined) and PTFE material. This is often more economical than other special materials.
Exceptions are hydrofluoric acid, compounds generating HF during the evaporation process and highly concentrated acids at high temperatures.
