Separation av fosfor från LD-slagg - Josen 2013
PSP-BOF, Removal of Phosphorus from BOF-slag (P-SLAGG).
Från konferensen Framtidens Metalliska material 16-17 mars 2016.
Från konferensen "Fler idéer om metaller" 4-5 mars 2015.
Provisional Abstract
This project seeks to separate useable substances from BOF-slag for utilisation in different application. Different separation techniques will be investigated based on either liquid slag (partial) or on solidified slag, where treatment of liquid slag with phosphorus- and iron containing residues is an important part. Fractions rich in phosphorus and calcium can be used as fertiliser or in cement and V-rich fraction as raw material for vanadium production. Remaining slag is low in phosphorous and hence no restrictions exist for internal recycling via sinter plant or blast furnace. Advantages will be significant savings of iron ore, limestone, CO2 and energy.
The goal of the PSP-BOF project is to add knowledge and value by investigating the entire chain by innovative methods and carry out operational tests by:
- treatment of liquid slag with P- and Fe-containing residues to reach the target of successful separation and optimised recycling,
- investigation of two different phosphorus separation methods, one based on separation of liquid (partial) state and one based on separation in solid state by mineral processing, by investigation of different techniques and selection of optimised process routes for these two methods and
- investigations of potential applications of all fractions, partly not investigated in the past, aiming at a zero-waste process.
Projektledare
Swerea MEFOS
Marcel Magnusson
Forskningsutförare
Fehs - institut für baustoff-forschung e.v. Deutschland
Ilva s.p.a. Italia
SSAB Merox AB Sverige
Scuola superiore di studi universitari e di perfezionamento sant’anna Italia
VDEH-betriebsforschungsinstitut gmbh Deutschland
Voestalpine stahl gmbh Oesterreich
Total Budget
2413955 €
EU Contribution
1448372 €
Duration (months)
36
Start Date
2013-07-01
End Date
2016-06-30