- Responsible partner: VTT
- Location of pilot: Bioruukki, Ruukinmestarintie 2, 02330 Espoo (Finland)
- TRL: 5
The pilot ‘Sulphide precipitation’ is a bench scale pilot for leaching and precipitation for multiple different kinds of input streams. It has a flexible process configuration.
The pilot setup has the following characteristics:
Picture: Reactors
Reactors
- Temperature control (T = 25-100ºC), p = atmospheric pressure
- Titanium and acid proof steel (904L)
- Different sizes from 1 to 100 litre (mainly 5 and 10 litre)
- Three thickeners (á 90 litre)
Gases
- 8 mass flow controllers to 𝑂_2, 〖𝐶𝑂〗_2, Air (data accessible)
- 6 mass flow controllers to 〖𝑆𝑂〗_2,𝐻_2 𝑆 (data accessible)
Pumps (with adjustable flow rates)
- 12 acid/base pumps (data accessible)
- 12 process pumps (data accessible)
Picture: Thickener
Data
- 15 channels pH / ORP / temp
Solid dosing
- Two screw feeders with changeable screw types
Particle Track&View (for one reactor at a time)
- Particle size (Chord Length) 0.5 to 2000 µm
- Particle shape and size- Optical resolution > 2µm with 1300 x 890 µm view area
Analytics
- ICP-OES – located next to Flexmet for rapid analytics
Picture: ICP-OES |
Picture: Solid feeder and reactors |
Picture: Particle Track View |
Contact: pirkka.ollonqvist@vtt.fi