High-Efficiency Flotation Collectors for Magnetite Ores SME Denver - - PowerPoint PPT Presentation

High-Efficiency Flotation Collectors for Magnetite Ores

SME Denver February 2019

Introduction to Nouryon Iron Ore High efficiency collector – Lilaflot 821M

Agenda

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Conclusion Low toxicity collector – Armoflote 930

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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

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• 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 chemistry to markets worldwide

Agriculture Polymer production and processing Oil and gas ..and more... Personal care Construction Food Cleaning Pulp and paper

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Surface Chemistry Mining RD&I locations

RD&I

• Itupeva, Brazil
• Shanghai, China
• Mumbai, India
• Singapore
• Stenungsund, Sweden
• New York, US

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Markets we serve – Main minerals

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Copper Sulfide

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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

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Introduction to Nouryon Iron Ore High efficiency collector – Lilaflot 821M

Agenda

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Conclusion Low toxicity collector – Armoflote 930

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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

Grade SiO2, % Fe Recovery, %

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

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Reference Collector Lilaflot 821M Dosage Foaming Toxicity

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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

Grade, % Plant trial test number

Lilaflot 821M Reference Collector

20 40 60 80 100 120 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Recovery, % Plant trial test number

Lilaflot 821M Reference Collector

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

N.A. Ore 1

1 2 3 4 5 6 0.1 0.2 0.3

Residual SiO2, % Collector dosage, lb/lt

Reference Collector Lilaflot 821M

1 2 3 4 5 6 40 60 80 100

Residual SiO2, % Fe Recovery, %

Reference Collector Lilaflot 821M

• Lilaflot 821M has higher dosage efficiency
• Lilaflot 821M provides better selectivity

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

N.A. Ore 2

1 2 3 4 5 6 0.1 0.2 0.3

Residual SiO2, % Collector dosage, lb/lt

Reference Collector Lilaflot 821M

1 2 3 4 5 6 70 80 90 100

Residual SiO2, % Fe recovery, %

Reference Collector Lilaflot 821M

• Lilaflot 821M needs lower dosage
• Lilaflot 821M provides better selectivity

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Introduction to Nouryon Iron Ore High efficiency collector – Lilaflot 821M

Agenda

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Conclusion Low toxicity collector – Armoflote 930

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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

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Environmental Profile of Armoflote 930

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*= 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

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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

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* 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.

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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 Insoluble, % Weight Recovery, %

Reference Collector, 30+15+15g/t Armoflote 930, 40+20+20g/t

5 10 15 20 25 50 100 150 200

Froth Height, 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

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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 you

Wan Wang-Geissler Nouryon, Surface Chemistry 281 Fields Lane, Brewster NY 10509, USA Tel: 1 - 845 276 8344, E-mail: Wan.WangGeissler@Nouryon.com

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Lilaflot 821M – lab results

N.A. Ore 3

60 65 70 75 80 85 90 95 100 0.1 0.2 0.3 0.4

Iron recovery, % 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

SiO2, % Fe Recovery, %

Reference Collector Lilaflot 821M

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