High-Efficiency Flotation Collectors for Magnetite Ores

SME Denver February 2019

Introduction to Nouryon

Iron Ore

High efficiency collector – Lilaflot 821M

Agenda

2

Conclusion

Low toxicity collector – Armoflote 930

SME 2019

3

Noury & Van der Lande

• Founded in 1838

• Pioneers in organic peroxides

• Realized the essential role chemistry

could play in everyday life

Today we are still a world leader in essential

chemistries used to manufacture everyday

products

Nouryon –Former AkzoNobel Specialty Chemicals

SME 2019

4

• Experts in highly

demanding

chemistry

• Supplying markets

with essential

chemicals for

manufacturing

everyday products

• Our products play

an essential role in

everyday life

Supplying essential chemistryto markets worldwide

Agriculture

Polymer production

and processing

Oil and gas

..and more...

Personal care

ConstructionFood

CleaningPulp and paper

SME 2019

Surface Chemistry Mining RD&I locations

RD&I • Itupeva, Brazil

• Shanghai, China

• Mumbai, India

• Singapore

• Stenungsund, Sweden

• New York, US

5SME 2019

Markets we serve – Main minerals

6

Copper Sulfide

SME 2019

Iron Ore (magnetite, hematite, itabarite)

End use

• Steel production

Quality requirement

• Low silica and low phosphorus content

• High Fe-grade

Nouryon expertise

• Reverse flotation

• Removal of silicates

• Process water with high content of electrolytes

• Very fine particle size

• Froth characteristic issues

• Complex silicates

• Removal of phosphate/apatite

• Process water with high content of electrolytes

7SME 2019

Introduction to Nouryon

Iron Ore

High efficiency collector – Lilaflot 821M

Agenda

8

Conclusion

Low toxicity collector – Armoflote 930

SME 2019

9

Lilaflot 821M – lab results

European Ore

4

4.5

5

5.5

6

6.5

7

7.5

60 65 70 75 80 85 90

Gra

de

SiO

2,%

Fe Recovery, %

Lilaflot 821M, 100, 120, 140g/t

Reference Collector, 100, 120, 140g/t

SME 2019

Reference

Collector

Lilaflot

821M

Dosage

Foaming

Toxicity

10

Lilaflot 821M – Plant Trial

• The dosage of Lilaflot 821M was 50-80% of reference collector

• Good performance, similar grade and recovery

61

62

63

64

65

66

67

68

69

70

71

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Gra

de

, %

Plant trial test number

Lilaflot 821M

Reference Collector

0

20

40

60

80

100

120

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Re

co

ve

ry,

%

Plant trial test number

Lilaflot 821M

Reference Collector

SME 2019

11

Lilaflot 821M – lab results - N.A. Ore 1

N.A. Ore 1

0

1

2

3

4

5

6

0 0.1 0.2 0.3

Re

sid

ua

l S

iO2, %

Collector dosage, lb/lt

Reference Collector

Lilaflot 821M

0

1

2

3

4

5

6

40 60 80 100

Re

sid

ua

l S

iO2, %

Fe Recovery, %

Reference Collector

Lilaflot 821M

• Lilaflot 821M has higher dosage efficiency

• Lilaflot 821M provides better selectivity

SME 2019

12

Lilaflot 821M – lab results - N.A. Ore 2

N.A. Ore 2

0

1

2

3

4

5

6

0 0.1 0.2 0.3

Re

sid

ua

l S

iO2, %

Collector dosage, lb/lt

Reference Collector

Lilaflot 821M

0

1

2

3

4

5

6

70 80 90 100

Re

sid

ua

l S

iO2, %

Fe recovery, %

Reference Collector

Lilaflot 821M

• Lilaflot 821M needs lower dosage

• Lilaflot 821M provides better selectivity

SME 2019

Introduction to Nouryon

Iron Ore

High efficiency collector – Lilaflot 821M

Agenda

13

Conclusion

Low toxicity collector – Armoflote 930

SME 2019

14

Permit to operate

Sampling place

Benefication

plant

Water flow

direction

Requirements of a collector

• Performance (grade, recovery, efficiency, froth stability)

• Operational permits connected to environmental profile of chemicals used in the flotation

Aquatic toxicity• Adsorbtion of the chemicals on

the minerals - Bioavailability

• Biodegradability

• Human toxicity

SME 2019

Environmental Profile of Armoflote 930

15

*= predicted, read across.

*

• Higher value = less toxic surfactant• Atmoflote 930 25 times less toxic towards Daphnia

• Armoflote 930 1.8 times less toxic towards Algae

• Armoflote 930 22* times less toxic towards Fish

SME 2019

Surfactant % degradation in 28 days

Traditional Ether

Monoamine

41

Traditional Ether

Diamine

10

Armoflote 930 >60 = Readily

Biodegradable

Daphnia Algae Fish

Toxicity (OECD)EC50/ErC50/LC 50, mg/l

Standard Ether Monoamine

Standard Ether Diamine

Armoflote 930

16

* predicted

Environmental Benefits

Environmental

Biodegradability readily

Aquatic toxicity (OECD algae) 0.75

Human toxicity Non toxic*

Predicted No Effect Concentration 2-4 times higher

• Aquatic toxicity of reference collector is 0.111.

SME 2019

17

Flotation Results & Frothing Properties

1.2

1.25

1.3

1.35

1.4

1.45

1.5

1.55

1.6

1.65

86 88 90 92 94 96 98

Acid

In

so

lub

le,%

Weight Recovery, %

Reference Collector, 30+15+15g/t

Armoflote 930, 40+20+20g/t

0

5

10

15

20

25

0 50 100 150 200

Fro

th H

eig

ht,

cm

Time, Seconds

Reference Collector

Armoflote 930

Air off

• Required grade and recovery in flotation obtained

with our readily biodegradable & low toxicity

collector Armoflote 930!

• Outstanding frothing compared to benchmark

collectors obtained with Armoflote 930

SME 2019

SME 2019 18

Conclusion

• Lilaflot 821M

▪ High efficiency

▪ Better foaming

▪ Less toxic to humans

• Armoflote 930

▪ Low toxicity

▪ Good performance

▪ Outstanding frothing

Your partner

in essential chemistry

for a sustainable future

Thank youWan Wang-Geissler

Nouryon, Surface Chemistry

281 Fields Lane, Brewster NY 10509, USA

Tel: 1 - 845 276 8344, E-mail: Wan.WangGeissler@Nouryon.com

20

Lilaflot 821M – lab results

N.A. Ore 3

60

65

70

75

80

85

90

95

100

0 0.1 0.2 0.3 0.4

Iro

n r

ec

ove

ry,

%

Collector dosage, lb/lt

Reference Collector

Lilaflot 821M

2.5

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

60 70 80 90 100

SiO

2, %

Fe Recovery, %

Reference Collector

Lilaflot 821M

SME 2019