A new application of the WALL WETTER
WW CRYSTAL PLUS
BEST FOR A BATCH CRYSTALLIZATION WITH FINE TRAP.

¡STRUCTURE

WW crystal plus system consists of a WALL WETTER and a vessel with two separated jackets and each jacket would be controlled at different temperature levels.   In case the upper jacket will be heated it shall work as a fine trap.

¡EXAMPLE

Change of concentration 

Comparison of average crystal sizes

¡FEATURES

  • The average crystal size becomes larger than by the conventional method.
  • Decreasing fine crystals. ¨  easy filtration
  • After concentration the crystallization starts soon.
  • It becomes shorter than the conventional system. 
  • A distribution of crystal size becomes narrow.
  • Easy cleaning in a vessel.
  • Less contamination.  GMP applicable.

¡The example of an experiment

Introduce the crystal photograph extracted by the conventional method and WW crystal plus.

Glycine Crystal
glycine crystal by conventional glycine crystal by WW
Conventional WW Crystal Plus
Photo by Prof. Ooshima
ALUM Crystal
alum crystal by conventional alum crystal by WW
Conventional WW Crystal Plus
Taurine Crystal
taurine crystal by conventional taurine crystal by WW
Conventional WW Crystal Plus

¡Polymorphs control

By controlling the temperature of the upper jacket and the lower jacket the temperature of the slurry could be controlled accurately.It might make possible to get polymorphs.

solubility of glycine polymorphs Polymorphs by WW CRYSTAL PLUS
Solubility of glycine polymorphs Polymorphs by WW CRYSTAL PLUS
by X-ray diffraction
Only by the slow cooling of the WW Crystal Plus,ƒÁ-glycine could be obtained.

CATALOG  TO LIST OF NEW PRODUCTS

Any inquires please contact the address below.
e-mailF technical@kce.co.jp