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Alumina

The MoistScan® MA-500 online microwave analyzer is ideally suited for using in the alumina industry from mining of bauxite to the production of alumina.

The main uses of the MA-500 in the alumina industry include:

•    De-watering circuits such as centrifuges and control of Alumina
      hydrate calciner.
•    Moisture measurement of mined bauxite for metallurgical accounting.
•    De-watering of red mud in the CCD circuits for further processing of
      red mud.
•    ROM applications for metallurgical accounting of bauxite.
•    Loading Ports and train load outs for commercial and contractual purposes.
•    Measurement of nickel carbonate within the process.
•    De-watering circuits such as centrifuges and control of Alumina hydrate calciner.

Examples of applications

Alumina Refinery - QLD, Australia

Instrument:
Material:
Installation:
Bed Depth:
Moisture:
Purpose:

MA-500 (4 units)
Alumina Hydroxide
Between vertical disk filters and calciner
50mm
6 - 10%
Control of vertical disk filter

Alumina Refinery - QLD, Australia

Instrument:
Material:
Installation:
Bed Depth:
Moisture:
Purpose:

MA-500
Alumina Hydrate Filter Cake
On vacuum pan filter discharge line prior to calciner 2
800tph
4 - 8%
Monitor filter performance feed-forward control of calciner

Alumina Refinery - China

Instrument:
Material:
Installation:
Bed Depth:
Moisture:
Purpose:

MA-500
Aluminium Hydroxide
On belt conveyor between filters and dryer.
10-20mm
7 - 12%
Feedback control