Ribbon dryer or rotary vacuum dryer is manufactured by mikrons. The company is a manufacturer and supplier of chemical plants machineries. Ribbon dryer or rotary vacuum dryer provides conductive heating of materials through a thermal fluid jacket on the mixing vessel resulting in a flash evaporation of volatile components such as water or organic solvents. The material agitation or transfer exposes the material to the open space at the top of the mixer. In order to continue to drive the evaporation, the vapor in this free space is removed either by the assistance of a conventional fan or by convection. The unique features of ribbon dryer or rotary vacuum dryer: