B/R Extractor
B/R liquid-liquid extractor, a jacketed stainless vessel with air stirrer and condenser on a stainless frame
Water-wash extractor

Liquid-Liquid Extraction

A stainless water-wash extractor that pulls sugars, phospholipids, and pigments out of crude before they char in your still.

Removes
Water-solubles
Vessel
Jacketed stainless
Wetted parts
No glass
Cleaning
Clean in place
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Designed and built in the USA · Sanitary connections · IQ/OQ/PQ documentation available

Overview

Why wash crude with water

Ethanol extraction does not only pull cannabinoids. Sugars, phospholipids, and pigments come along with them, and none of that survives a hot boiler gracefully. Under vacuum and heat these water-soluble compounds char and foul the apparatus — darkening the distillate, cutting the interval between cleanings, and dragging colour into every fraction downstream.

A liquid-liquid wash removes them before the still ever sees them. Oil and water are stirred to an emulsion, the water-soluble fraction partitions into the aqueous phase, and the phases are separated and drained.

  • Sugars, phospholipids, and pigments removed from crude
  • Less charring and fouling in the distillation apparatus
  • Lighter distillate colour out of the same crude
  • Output ready for wiped film, short path, or spinning band
Features

Extractor, GMP, and safety

Stainless throughout with no glass in the wetted path, so a production wash is not a breakage risk.

Extractor

  • Rugged stainless steel construction, no glass
  • Jacket temperature control with digital bath
  • Temperature measuring port
  • Viewing windows
  • Drain valve

GMP

  • Electropolished surfaces
  • Sanitary connections
  • Clean in place (CIP)
  • Easy to disassemble
  • Welded stainless frame with wheels
  • IQ/OQ/PQ documents

Safety

  • Compressed air powered stirrer
  • Heating and cooling bath can sit outside the room
Procedure

Running a wash

  1. Add oilCharge the vessel through the sanitary top port.
  2. Start water and stirringBring the two phases into contact and hold the emulsion.
  3. Maintain the interfaceWatch through the viewing windows as the phases resolve.
  4. Remove when completeDrain the aqueous phase and recover the washed oil.
Specifications

Technical specifications

VesselJacketed stainless steel, no glass
Jacket controlDigital heating and cooling bath
StirrerCompressed air driven
ObservationViewing windows
DischargeBottom drain valve
SurfacesElectropolished
ConnectionsSanitary
CleaningClean in place (CIP)
FrameWelded stainless with wheels
DocumentationIQ, OQ, PQ
Next step: washed oil goes on to decarbing, then distillation.
Process notes

Further reading

Ready to refine cleaner distillate?

Talk with a B/R applications specialist about spinning band systems and process fit for your crude.

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