Applications

ConCor Technology can be used in a diverse range of application areas from processing liquid/liquid emulsions for foodstuffs through to processing hard ceramic particles.

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Experience

The staff at PDL have over 100 years experience between them working in nanotechnology and size reduction technologies in fields as diverse as carbon nanotube production through to pigments.

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ConCor Technology

One of the most significant problems holding back the successful application of nanomaterials is difficulty in achieving optimal dispersion. Whilst nanomaterials synthesis has developed to the extent that there are now several different manufacturing routes available, by and large dispersion technology has remained the province of media mills and rotor/stator high shear mixers.

Both of these technologies achieve de-agglomeration and some degree of de-aggregation, but are typically insufficient to deliver the significant economic benefits offered by well dispersed nanoparticles.

The mechanical size reduction of particles in the submicron range presents significant technical challenges in terms of both mechanical design and subsequent chemical stabilisation. Furthermore, these challenges are increased when optimising at an industrial scale. Now, at last, a major breakthrough in dispersion technology is available.

The novel technology developed by Primary Dispersions Ltd in collaboration with Maelstrom APT – ConCor – allows hard particles to be processed via mechanical compressive stresses and fluid extensional stresses, producing stable dispersions of nanoscale particles at a rate which is industrially significant. The photograph below shows the initial “proof of concept machine” which is now available for both development work and small scale manufacturing or toll processing.

ConCor Technology

The design of the equipment allows for a wide range of materials such as ZnO, TiO2, SiO2, Al2O3, FexOy, ZrSiO4, metals such as Ag, Au and Cu, nanopigments (organic and inorganic) nanoclays and nanotubes to be processed within a wide range of carrier fluids (including flammables). Efficient heat extraction from the carrier fluid allows heat sensitive materials such as foodstuffs to be processed without the problem of denaturing. The ConCor technology is also particularly effective at creating emulsions with nanoscale droplets at a very wide range of viscosities.

Primary Dispersions Ltd offers customers the ability to prove concept, scale up and ultimately toll manufacture nanoscale particle dispersions. It is backed up by state of the art development and characterisation facilities. ConCor development activity is currently at the following scale, which allows for straightforward scale up to manufacturing:

  • Minimum batch volume = 250ml
  • Maximum batch volume = 10 litres
  • Process Fluid viscosity = 1 – 150 cps
  • Maximum Processing temperature = 59°C
  • Flowrate up to 10 litres per minute

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