Rheological Additives for Crop Protection - Elementis Specialties

Product Application and Selection
Shear Development
Generic Type
12
Low Low Medium Medium - High Medium - High Very High
Paddle Propeller Planetary Rotor/Stator Impeller Homogeniser
BENTONE ® MA, BENTONE ® EW and BENTONE ® LT additives - powders needing high-energy mixing
Conditions
Order of addition
Special Factors
BENTONE ® 27, BENTONE ® 34 and BENTONE ® 38 additives - powders needing high-energy mixing
Conditions
Order of addition
Special Factors
Suitable only for BENTONE ® EW
additive. Use highest speeds
(>3000 rpm)
Clean water and rheological additive only.
Suitable for BENTONE ® MA, BENTONE ® EW and
BENTONE ® LT additives.
Use highest speeds and carefully observe optimum
mixer/vessel configuration
Avoid addition of surfactants or electrolytes until dispersion completed.
BENTONE ® EW < 5%
pH of water neutral. Sift clay in
gradually. Add defoamers, if
needed, only after dispersion
completed.
BENTONE ® MA < 10%
BENTONE ® EW < 5%
BENTONE ® LT < 4%
pH of water neutral.
Sift clay in gradually.
Unsuitable - insufficient shear. Suitable for BENTONE ® 27, BENTONE ® 34 and
BENTONE ® 38 additives.
N/A
Use highest speeds and carefully observe optimum
mixer/vessel configuration
Oil or solvent alone.
Add organoclay and disperse.
Add polar activator and continue dispersing.
N/A Ensure full wetting achieved before activation.
Use optimum level of polar activator.
Avoid the presence of surfactants until after activation.
Suitable for
BENTONE ® MA,
BENTONE ® EW
and BENTONE ®
LT additives.
Recommended
for BENTONE ®
27, and
BENTONE ® 38
additives.