Nutsch Filter

Multipurpose glass pilot reactor and pilot plant

Glass vessel: 10, 30, 50, 100, 140, 300 liters
Pressure: -1.0 (FV) to +1.0 bar
Temperature: -60 °C to +200 °C
Filter cloth: Mesh size 8 - 115 micron
Material: Borosilicate glass 3.3, PTFE, PFA, ETFE

  • Other setups are available.

Buchi nutsch filters can easily be combined with our reactors for solid / liquid separation after the synthesis. The inert materials allow safe processing in a inert atmosphere of a wide range of solvents and acids in a completely sealed (buchiflex) glass system under full vacuum.

The slurry is transferred into the filter. The solid content in the slurry is held back by the filter cloth forming a filter cake, while the filtrate runs away to the outlet valve in the bottom plate. The filtering stage finishes when the filtrate is of small quantity, which can be shortened by squeezing the filter cake by turning the height adjustable stirrer.

The cake is removed easily from the top by opening the cover and lowering the glass filter vessel, which is fixed to the lifting device. The same lifting device is used to lower the bottom for accessing the filter cloth for cleaning and exchange.


Standard package

  • Glass filter vessel
  • ETFE coated cover plate with ports for slurry feed, nitrogen, etc.
  • PTFE bottom plate with filter cloth
  • Mobile stainless steel frame with lifting device
  • Highly corrosion resistant
  • FDA conform
  • cGMP
  • Complete documentation

Standard options

  • Manual stirrer in stainless steel, Hastelloy or with inert coating
  • ATEX stirrer drive with adjustable stirrer speed
  • CIP capability
  • Heating jacket (drying)
  • IQ / OQ / PQ

Examples


Chemical reactions, applications

  • Filtration
  • Drying
  • Purification
  • Crystallization
  • Cannabis extraction (solvent extraction)
  • Cannabinoid extraction
  • Ion exchange
  • Solid phase peptide synthesis (SPPS)
  • Chromatography
  • Cannabis extract purification
  • Cannabis winterization (cannabis extract winterization)