Pope Scientific short path/wiped film stills, evaporators, molecular stills, fractional distillation columns and Nutsche filter dryers can be found working in R&D laboratories, universities, small & large corporations throughout the world.

Thin Film Distillation and Wiped Film Evaporators

Pope Scientific Short Path/Wiped-Film Stills (WFS) and Wiped-Film Evaporators (WFE) successfully separate volatile from less volatile components for Oils, Fats, Chemicals, Polymers, Nutraceuticals and Fragrances etc. with a gentle process utilizing the thin-film wiping action of feed liquid through a heated cylindrical vacuum chamber with high vacuum (i.e. vacuum distillation/evaporation).

Keys to the superiority of this process include:

Short residence time of the feed liquid
Significantly lowered temperature due to high vacuum capability, and
Optimal efficiency in mass and heat transfer

The brief exposure of feed liquid to heated walls is due in part to the slotted wiper design which forces the liquid downward with strict control of residence time, film thickness, and flow characteristics.

Efficient thermal separation with minimum product decomposition and maximum product quality result when using the Wiped Film-Short Path process for distillation. The Wiped Film process offers far superior performance to flash evaporators, falling film stills, rotary evaporators and similar equipment in any processing application where heat-sensitivity is a factor.

Nutsche Filter-Dryers

Pope Nutsche Filter-Dryers for critical high purity separations of liquids and solids. Products include pharmaceuticals, bio-materials, electronics grade materials, fine speciality chemicals, and many others.

These units provide capabilities for solids filtering, washing, reslurrying and drying in a single vessel. Pressure capability facilitates filtering rate and vacuum capability facilitates filter cake drying rate which can be additionally aided by heat and cake agitation.

Nutsches are available in laboratory, pilot plant and production scale, in volumes from 0.2 – 1000 litres and Pope’s smaller lab scale Nutsche units provide chemists and researchers with a very powerful tool for testing, piloting and small scale processing