2236 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
though results show that separation occurred, further labo-
ratory scale test work is required.
Tests where similar concentrations compared to stan-
dard (10 g/t) showed that 1708 (T1) was, from all the
collectors tested, the one that had better performance.
Considering collectors 0214 and 8915, improved perfor-
mance compared to standard was achieved when consid-
ering 10 minutes flotation time, using the same sample.
However, when compared to the result of a second sample,
recovery with standard was superior. The results indicate
that continued test work should be performed with 1708,
1709 and 1673, to evaluate the reproducibility of the
achieved results before pilot scale tests. As for 8915 and
0214, evaluation in pilot scale can proceed since reproduc-
ibility is already proven.
Noteworthy, collectors 1708, 1709, and 1673 did not
necessitate saponification, eliminating the requirement for
NaOH. Moreover, the tests that yielded results comparable
to the standard did not necessitate the addition of frother.
Consequently, it is assumed advantageous, both from a
process perspective and in terms of sustainability and safety
in chemical handling, to further explore these collectors.
While not mandatory, it is highly recommended that
once the conditions regarding %P are favorable, a comple-
mentary replicability evaluation for collectors 1708, 1709,
and 1673 should be conducted. The confirmation of favor-
able results will pave the way for the selection of these
three collectors for pilot testing. Pilot scale tests are recom-
mended before full scale tests for the collectors that gave the
best results comparable with the use of standard. However,
a risk assessment could be done depending on the purchase
department’s conclusions and needs, to evaluate if there is a
need to move directly to full scale trial.
REFERENCES
Bergman, S., Kubler, L. &Martinsson, O., 2001. Description
of regional geological and geophysical maps of Norrbotten
country (east of Caledonian orogen). s.l.:Elanders Tofters,
Östervåla 2001.
Forsmo, S., Björkman, B.M. &Samskog, P., 2008. Studies
on the influence of flotation collector reagent on iron
ore green pellet properties. Powder Technology, 182(3),
pp. 444–452.
Potapova, E., 2011. Adsorption of sufactantes snd polymers
on iron oxides: implications for flotation and agglom-
eration of iron ore. Doctoral Thesis, September.
Tavares, M., 2022. FARA Project: Finding Alternatite Reagent
for Apatite flotaiton, Kiruna: Internal LKAB report.
Vermöhlen, K., Lewandowski, H., Narres, H. &Schwuger,
M., 2000. Adsorption of polyelectrolytes onto
oxides—The influence of ionic strength, molar mass,
and Ca2+ ions. Colloids and Surfaces A: Physicochemical
and Engineering Aspects, 163(1), pp. 45–53.
though results show that separation occurred, further labo-
ratory scale test work is required.
Tests where similar concentrations compared to stan-
dard (10 g/t) showed that 1708 (T1) was, from all the
collectors tested, the one that had better performance.
Considering collectors 0214 and 8915, improved perfor-
mance compared to standard was achieved when consid-
ering 10 minutes flotation time, using the same sample.
However, when compared to the result of a second sample,
recovery with standard was superior. The results indicate
that continued test work should be performed with 1708,
1709 and 1673, to evaluate the reproducibility of the
achieved results before pilot scale tests. As for 8915 and
0214, evaluation in pilot scale can proceed since reproduc-
ibility is already proven.
Noteworthy, collectors 1708, 1709, and 1673 did not
necessitate saponification, eliminating the requirement for
NaOH. Moreover, the tests that yielded results comparable
to the standard did not necessitate the addition of frother.
Consequently, it is assumed advantageous, both from a
process perspective and in terms of sustainability and safety
in chemical handling, to further explore these collectors.
While not mandatory, it is highly recommended that
once the conditions regarding %P are favorable, a comple-
mentary replicability evaluation for collectors 1708, 1709,
and 1673 should be conducted. The confirmation of favor-
able results will pave the way for the selection of these
three collectors for pilot testing. Pilot scale tests are recom-
mended before full scale tests for the collectors that gave the
best results comparable with the use of standard. However,
a risk assessment could be done depending on the purchase
department’s conclusions and needs, to evaluate if there is a
need to move directly to full scale trial.
REFERENCES
Bergman, S., Kubler, L. &Martinsson, O., 2001. Description
of regional geological and geophysical maps of Norrbotten
country (east of Caledonian orogen). s.l.:Elanders Tofters,
Östervåla 2001.
Forsmo, S., Björkman, B.M. &Samskog, P., 2008. Studies
on the influence of flotation collector reagent on iron
ore green pellet properties. Powder Technology, 182(3),
pp. 444–452.
Potapova, E., 2011. Adsorption of sufactantes snd polymers
on iron oxides: implications for flotation and agglom-
eration of iron ore. Doctoral Thesis, September.
Tavares, M., 2022. FARA Project: Finding Alternatite Reagent
for Apatite flotaiton, Kiruna: Internal LKAB report.
Vermöhlen, K., Lewandowski, H., Narres, H. &Schwuger,
M., 2000. Adsorption of polyelectrolytes onto
oxides—The influence of ionic strength, molar mass,
and Ca2+ ions. Colloids and Surfaces A: Physicochemical
and Engineering Aspects, 163(1), pp. 45–53.