Alumina Industrial Processing

Industry Challenges:

Slow red mud sedimentation rate, insufficient underflow concentration, high suspended solids in the supernatant, high alkali loss, and fluctuating reagent costs.

Solutions:

Fumiao Technology's two-dimensional innovation of "process + product":

Pre-leaching concentration optimization: Customized anionic polyacrylamide (A-PAM) with precisely matched molecular weight, improving sedimentation efficiency in the separation tank, ensuring the height of the clear liquid layer, increasing underflow density, and reducing suspended solids in the thickened slurry.
Post-leaching washing enhancement: Ultra-high molecular weight flocculant (dry powder type) optimized for pH adaptability, ensuring stable clear liquid layer height in each washing tank, improving washing efficiency, and reducing alkali loss.

Case Introduction:

Taking a large domestic alumina enterprise as an example, Fumiao's solution achieved:

Doubled sedimentation efficiency: The clear liquid layer in the separation tank increased from 6 meters to 7 meters, and the system processing capacity improved by 16%.
Precise alkali consumption control: By controlling the underflow L/S and clear liquid layer in the washing tanks, washing efficiency was improved and alkali loss in red mud was reduced.

Mine Water Treatment