• Home
  • Products
    • Formulaction Turbiscan >
      • Turbiscan >
        • Turbiscan Lab
        • Turbiscan Tri Lab
        • Turbiscan Tower
        • Turbiscan AGS
        • Turbiscan Classic 2
        • Turbiscan Oil Series
        • Turbiscan Stability Index
        • Turbiscan Measurement Cells
      • Curing Analyser
      • Fluidicam
      • Turbiscan Rheolaser >
        • Turbiscan Rheolaser Crystal
      • Turbiscan Applications >
        • Turbiscan Industry Applications >
          • Vaccine Stability
    • DISPERMAT Dispersion >
      • Production Machines
      • DISPERMAT Dissolvers >
        • Laboratory Dissolvers >
          • Explosion proof dissolvers
        • Vacuum Mixer Dissolvers
      • Basket Mills >
        • Laboratory Basket Mills
      • Bead Mills >
        • DISPERMAT APS Vertical Bead Mill
      • Industrial Stirrers
      • Rotor Stator
      • Accessories >
        • Impellers & Milling Disks
        • DISPERMAT Accessories
        • Milling Beads
        • Dispersion Process
    • Kemtrak Analysers >
      • Kemtrak Inline Turbidity Meter
      • Kemtrak Photometer - Colour & Concentration Measurement
      • Kemtrak Backscatter Probe
      • Kemtrak Oil In Water Probe
      • Inline Flow Cells & Flanges
      • Kemtrak Accessories
      • Applications >
        • Water & Waste
    • Wilhelm NIemann Dissolvers >
      • Kreis Trial Facility
      • Kreis Dissolvers >
        • Kreis Dissolvers
        • Top Mounted Kreis Dissolver
        • Butterfly Twin Shaft Dissolver Mixer
        • ADVTS Triple Shaft Dissolver Mixer
      • Kreis Basket Mills >
        • Kreis Basket Mill Flat Cover
        • Kreis Basket Mill - Vacuum Cover
        • Kreis Basket Mills for Laboratory & Pilot Plants
    • Inline Refractometers >
      • Inline Refractometer
      • Eythylene Glycol Sensor
    • Brookfield Viscometers >
      • Process Viscometers >
        • AST100 Process Viscometer
        • TT100 Process Viscometer
        • VTE250 Process Viscometer
        • BF35 & PVS Viscometers
      • Fulcan Solvent Dispensers
      • Laboratory Viscometers - Brookfield Ametek >
        • Rheometers
        • Texture Analysers
      • Applications >
        • Can Coating
        • Food Viscosity
    • Powerwise Ink Pumps
  • News
    • Exhibitions
    • Webinars
  • Contact
  • FAQs
Fullbrook Systems
  • Home
  • Products
    • Formulaction Turbiscan >
      • Turbiscan >
        • Turbiscan Lab
        • Turbiscan Tri Lab
        • Turbiscan Tower
        • Turbiscan AGS
        • Turbiscan Classic 2
        • Turbiscan Oil Series
        • Turbiscan Stability Index
        • Turbiscan Measurement Cells
      • Curing Analyser
      • Fluidicam
      • Turbiscan Rheolaser >
        • Turbiscan Rheolaser Crystal
      • Turbiscan Applications >
        • Turbiscan Industry Applications >
          • Vaccine Stability
    • DISPERMAT Dispersion >
      • Production Machines
      • DISPERMAT Dissolvers >
        • Laboratory Dissolvers >
          • Explosion proof dissolvers
        • Vacuum Mixer Dissolvers
      • Basket Mills >
        • Laboratory Basket Mills
      • Bead Mills >
        • DISPERMAT APS Vertical Bead Mill
      • Industrial Stirrers
      • Rotor Stator
      • Accessories >
        • Impellers & Milling Disks
        • DISPERMAT Accessories
        • Milling Beads
        • Dispersion Process
    • Kemtrak Analysers >
      • Kemtrak Inline Turbidity Meter
      • Kemtrak Photometer - Colour & Concentration Measurement
      • Kemtrak Backscatter Probe
      • Kemtrak Oil In Water Probe
      • Inline Flow Cells & Flanges
      • Kemtrak Accessories
      • Applications >
        • Water & Waste
    • Wilhelm NIemann Dissolvers >
      • Kreis Trial Facility
      • Kreis Dissolvers >
        • Kreis Dissolvers
        • Top Mounted Kreis Dissolver
        • Butterfly Twin Shaft Dissolver Mixer
        • ADVTS Triple Shaft Dissolver Mixer
      • Kreis Basket Mills >
        • Kreis Basket Mill Flat Cover
        • Kreis Basket Mill - Vacuum Cover
        • Kreis Basket Mills for Laboratory & Pilot Plants
    • Inline Refractometers >
      • Inline Refractometer
      • Eythylene Glycol Sensor
    • Brookfield Viscometers >
      • Process Viscometers >
        • AST100 Process Viscometer
        • TT100 Process Viscometer
        • VTE250 Process Viscometer
        • BF35 & PVS Viscometers
      • Fulcan Solvent Dispensers
      • Laboratory Viscometers - Brookfield Ametek >
        • Rheometers
        • Texture Analysers
      • Applications >
        • Can Coating
        • Food Viscosity
    • Powerwise Ink Pumps
  • News
    • Exhibitions
    • Webinars
  • Contact
  • FAQs
1. The Dispersion Process

The most frequent application of high speed dispersion is to incorporate extremely fine solid particles into fluids, to produce colloidal suspensions.

Picture
Colloidal suspensions are characterised by their behaviour that the finely divided small particles do not settle under the force of gravity. A sequence of related steps take place during the dispersing process. 

These are: 
  • the wetting of the surface of the solid particles by the fluid components of the millbase
  • the mechanical breakdown of associated particles leading to smaller particles (agglomerates and aggregates)
  • the smaller particles generated during the dispersion are stabilised, preventing renewed association (flocculation).

2. The doughnut effect

The dispersion process is characterised by the rolling flow pattern known as the doughnut effect.

The most effective dispersion takes place in concentrated systems where the impeller tip speed is 18-26m/sec.

The dispersion process is typically completed after 20 minutes
​

Picture

Picture
3. Optimising the dispersion process

It is important for the impeller to be no smaller than 1/3 of the container diameter.  

It can be varied to achieve the required rolling flow pattern in the millbase.  
  

Fullbrook Systems

Tel  +44 (0) 1442 876 777
Email sales@fullbrook.com

Support

Contact
FAQ


About
GDPR
​Privacy policy
Terms & Conditions
​Cookies
​WEEE

© COPYRIGHT 2015. ALL RIGHTS RESERVED.
  • Home
  • Products
    • Formulaction Turbiscan >
      • Turbiscan >
        • Turbiscan Lab
        • Turbiscan Tri Lab
        • Turbiscan Tower
        • Turbiscan AGS
        • Turbiscan Classic 2
        • Turbiscan Oil Series
        • Turbiscan Stability Index
        • Turbiscan Measurement Cells
      • Curing Analyser
      • Fluidicam
      • Turbiscan Rheolaser >
        • Turbiscan Rheolaser Crystal
      • Turbiscan Applications >
        • Turbiscan Industry Applications >
          • Vaccine Stability
    • DISPERMAT Dispersion >
      • Production Machines
      • DISPERMAT Dissolvers >
        • Laboratory Dissolvers >
          • Explosion proof dissolvers
        • Vacuum Mixer Dissolvers
      • Basket Mills >
        • Laboratory Basket Mills
      • Bead Mills >
        • DISPERMAT APS Vertical Bead Mill
      • Industrial Stirrers
      • Rotor Stator
      • Accessories >
        • Impellers & Milling Disks
        • DISPERMAT Accessories
        • Milling Beads
        • Dispersion Process
    • Kemtrak Analysers >
      • Kemtrak Inline Turbidity Meter
      • Kemtrak Photometer - Colour & Concentration Measurement
      • Kemtrak Backscatter Probe
      • Kemtrak Oil In Water Probe
      • Inline Flow Cells & Flanges
      • Kemtrak Accessories
      • Applications >
        • Water & Waste
    • Wilhelm NIemann Dissolvers >
      • Kreis Trial Facility
      • Kreis Dissolvers >
        • Kreis Dissolvers
        • Top Mounted Kreis Dissolver
        • Butterfly Twin Shaft Dissolver Mixer
        • ADVTS Triple Shaft Dissolver Mixer
      • Kreis Basket Mills >
        • Kreis Basket Mill Flat Cover
        • Kreis Basket Mill - Vacuum Cover
        • Kreis Basket Mills for Laboratory & Pilot Plants
    • Inline Refractometers >
      • Inline Refractometer
      • Eythylene Glycol Sensor
    • Brookfield Viscometers >
      • Process Viscometers >
        • AST100 Process Viscometer
        • TT100 Process Viscometer
        • VTE250 Process Viscometer
        • BF35 & PVS Viscometers
      • Fulcan Solvent Dispensers
      • Laboratory Viscometers - Brookfield Ametek >
        • Rheometers
        • Texture Analysers
      • Applications >
        • Can Coating
        • Food Viscosity
    • Powerwise Ink Pumps
  • News
    • Exhibitions
    • Webinars
  • Contact
  • FAQs