| OBJECT: |
Disperse 2% Carbopol concentration into water without creating "fish eyes" or entraining air. Also, neutralize the Carbopol. |
|
PROBLEM: |
Long mixing and deaeration time with paddle mixer plus "fish eyes" formed by allowing gum powder to float on liquid surface. |
|
RESULT: |
Carbopol was fed into down-mode vortex and prewetted for 5 minutes. Then, run in up-mode for 20 minutes. Next, material was neutralized to form gel. Clear, relatively air free gel without "fish eyes". |
|
AB MIXER: |
Model CJ-4B mixer. Subsequently sold C-3-2 mixer with 5-3/4" rotor and 20 HP motor in 250 gallon kettle with U-shaped agitator thus permitting multiple use of kettle. |
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EQUIPMENT REPLACED: |
Paddle type mixers |