angloamerican ppt standard version - adimb · 2 grelhas vibratórias (metso) 3.982 t/h/und* 2...

1

PROCESS DEVELOPMENT

VISÃO GERAL DO PROCESSO

* Capacidade nominal

4 peneiras tipo banana

MF-12’x28’ DD (Metso)

2.608 t/h/und*

1 espessador 90 m(Flsmidth)

3.452 t/h*

343-525 km

11+1 Ceramec (Larox) 144 m² 255 t/h/und*

Mar

1 clarificador 50 m (Flsmidth) 50 t/h*

Recuperação

de água

2 grelhas vibratórias (Metso) 3.982 t/h/und*

2 britadores Mandíbula C140 (Metso) 557 t/h/und*

Pilha de estocagem 123,177 m³

Taxa de est. 7.964 t/h Taxa retom. 6.492 t/h

4 britadores

cônicos

HP500

(Metso)

617 t/h/und*

3 prensas de rolos 26’ x 42’ (Polysius)

2.164 t/h/und*

2 moinhos bolas 26’ x 42’(Metso)

3.246 t/h/und*

22 células de flotação

160m³

5 estágios

(Flsmidth)

16 Vertimills

VTM-1500 (Metso)

190 t/h/und*

1 espessador 57 m (Flsmidth)

3.040 t/h *

7+1 bombas deslocamento positivo TZPM 2000 (Weir GEHO)

301 m³/h/und* e 18,3 MPa

8+2 bombas deslocamento

positivo TZPM 2000

(Weir GEHO)

263 m³/h/und* 20,6 MPa

8 loops com 2 válvulas cada

0-235 km

235-343 km

2 pilhas

1 espessador 50 m

(Flsmidth)

3.080 t/h*

88 deslam. prim. 15” 152 m³/h/und *

480 deslam. sec. 4” 19 m³/h/und*

(Krebbs)

32 ciclones 33” (Krebbs)

618 m³/h/und*

32 ciclones 20” (Krebbs) 131 m³/h/und*

32 ciclones 20” (Krebbs)

131 m³/h/und*

3

STANDARD TESTS

DEFINE METALLURGICAL

PARAMETERS

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

CHECK

GEOMETALLURGICAL

BLOCK MODEL

WITH LARGE

SAMPLES

(PILOT TESTS)

CHECK

GEOMETALLURGICAL

BLOCK MODEL WITH

DRILLHOLE SAMPLES AT

MINI PILOT PLANT

AND BENCH SCALE TEST

1

2

3

4

5 1

GEOMETALLURGICAL MODELLING

4

0 to 5 years Pit

6 to 10 years Pit

11 to 15 years Pit

12kg to

Standard test.

~23kg to Pilot

tests per

period (pit).

(~35kg)

5m

GEOMETALLURGICAL MODELLING - SAMPLING

5

2 METALLURGICAL

PARAMETERS ROM

6660544842363024

70

60

50

40

30

20

10

0

Fe ROM (%)

Fre

qu

en

cy

Mean 40,22

StDev 7,795

N 433

Histogram of Fe ROM (%)Normal

6660544842363024

70

60

50

40

30

20

10

0

Fe ROM (%)

Fre

qu

en

cy

Mean 40,22

StDev 7,795

N 433

Histogram of Fe ROM (%)Normal

605040302010

60

50

40

30

20

10

0

SiO2 ROM (%)

Fre

qu

en

cy

Mean 40,34

StDev 11,83

N 433

Histogram of SiO2 ROM (%)Normal

605040302010

60

50

40

30

20

10

0

SiO2 ROM (%)

Fre

qu

en

cy

Mean 40,34

StDev 11,83

N 433

Histogram of SiO2 ROM (%)Normal

9,07,56,04,53,01,50,0-1,5

180

160

140

120

100

80

60

40

20

0

Al2O3 ROM (%)

Fre

qu

en

cy

Mean 1,313

StDev 1,287

N 433

Histogram of Al2O3 ROM (%)Normal

9,07,56,04,53,01,50,0-1,5

180

160

140

120

100

80

60

40

20

0

Al2O3 ROM (%)

Fre

qu

en

cy

Mean 1,313

StDev 1,287

N 433

Histogram of Al2O3 ROM (%)Normal

0,240,200,160,120,080,040,00

200

150

100

50

0

P ROM (%)

Fre

qu

en

cy

Mean 0,02125

StDev 0,01928

N 433

Histogram of P ROM (%)Normal

0,240,200,160,120,080,040,00

200

150

100

50

0

P ROM (%)

Fre

qu

en

cy

Mean 0,02125

StDev 0,01928

N 433

Histogram of P ROM (%)Normal

0,750,600,450,300,150,00-0,15

300

250

200

150

100

50

0

Mn ROM (%)

Fre

qu

en

cy

Mean 0,04429

StDev 0,09179

N 433

Histogram of Mn ROM (%)Normal

0,750,600,450,300,150,00-0,15

300

250

200

150

100

50

0

Mn ROM (%)

Fre

qu

en

cy

Mean 0,04429

StDev 0,09179

N 433

Histogram of Mn ROM (%)Normal

121086420

200

150

100

50

0

LOI ROM (%)

Fre

qu

en

cy

Mean 0,4853

StDev 0,8044

N 433

Histogram of LOI ROM (%)Normal

121086420

200

150

100

50

0

LOI ROM (%)

Fre

qu

en

cy

Mean 0,4853

StDev 0,8044

N 433

Histogram of LOI ROM (%)Normal

2

6

STANDARD TESTS

1

Chemical analyses

Size analyses

Mineralogical

analyses

730 SAMPLES TESTED

-Reserved to checking:

- 70 tests

7

STANDARD TESTS

1

8

2 METALLURGICAL

PARAMETERS 2

62,550,037,525,012,50,0-12,5

250

200

150

100

50

0

SiO2 PFF A (%)

Fre

qu

en

cy

Mean 6,143

StDev 10,94

N 433

Histogram of SiO2 PFF A (%)Normal

62,550,037,525,012,50,0-12,5

250

200

150

100

50

0

SiO2 PFF A (%)

Fre

qu

en

cy

Mean 6,143

StDev 10,94

N 433

Histogram of SiO2 PFF A (%)Normal

2520151050-5

200

150

100

50

0

SiO2 PFF B (%)

Fre

qu

en

cy

Mean 1,549

StDev 2,899

N 433

Histogram of SiO2 PFF B (%)Normal

2520151050-5

200

150

100

50

0

SiO2 PFF B (%)

Fre

qu

en

cy

Mean 1,549

StDev 2,899

N 433

Histogram of SiO2 PFF B (%)Normal

1815129630

250

200

150

100

50

0

SiO2 PFF C (%)

Fre

qu

en

cy

Mean 0,8100

StDev 1,431

N 433

Histogram of SiO2 PFF C (%)Normal

1815129630

250

200

150

100

50

0

SiO2 PFF C (%)

Fre

qu

en

cy

Mean 0,8100

StDev 1,431

N 433

Histogram of SiO2 PFF C (%)Normal

2,01,61,20,80,4-0,0

180

160

140

120

100

80

60

40

20

0

Al2O3 PFF C (%)

Fre

qu

en

cy

Mean 0,2342

StDev 0,1809

N 433

Histogram of Al2O3 PFF C (%)Normal

2,01,61,20,80,4-0,0

180

160

140

120

100

80

60

40

20

0

Al2O3 PFF C (%)

Fre

qu

en

cy

Mean 0,2342

StDev 0,1809

N 433


2,01,61,20,80,4-0,0

180

160

140

120

100

80

60

40

20

0

Al2O3 PFF C (%)

Fre

qu

en

cy

Mean 0,2342

StDev 0,1809

N 433


2,42,01,61,20,80,40,0

160

140

120

100

80

60

40

20

0

Al2O3 PFF A (%)

Fre

qu

en

cy

Mean 0,2855

StDev 0,2032

N 433

Histogram of Al2O3 PFF A (%)Normal

2,42,01,61,20,80,40,0

160

140

120

100

80

60

40

20

0

Al2O3 PFF A (%)

Fre

qu

en

cy

Mean 0,2855

StDev 0,2032

N 433

Histogram of Al2O3 PFF A (%)Normal

2,01,61,20,80,4-0,0

200

150

100

50

0

Al2O3 PFF B (%)

Fre

qu

en

cy

Mean 0,2168

StDev 0,1718

N 433

Histogram of Al2O3 PFF B (%)Normal

2,01,61,20,80,4-0,0

200

150

100

50

0

Al2O3 PFF B (%)

Fre

qu

en

cy

Mean 0,2168

StDev 0,1718

N 433

Histogram of Al2O3 PFF B (%)Normal

FLOTATION

• Three separated flotation using 100, 140 and 180 g/t of amine (flotation A, B and C,

respectively) and 500 g/t of starch.

9

Mineralogy METALLURGICAL

PARAMETERS 2

0,74 27,81

29,56 39,92 1,98

46,66

49,81

0,77 1,55 1,21

10

ROM Fe (%); SiO2 (%); Al2O3 (%); P (%); Mn (%);

LOI (%); CaO (%); TiO2 (%); MgO (%); K2O

(%); Na2O (%)

% above 25mm

% above 3mm

Mineralogy: Specularite (%); Goethite (%);

Hematite (%); Quartz (%); Others (%)

GRINDING • Feed (%): +1000μm; +500μm; +150μm;

+75μm; +45μm; -45μm

• F95 (μm); F80 (μm); F50 (μm)

• Grinded (%): +1000μm; +500μm; +150μm;

+75μm; +45μm; -45μm;

• P95 (μm); P80 (μm); P50 (μm)

• Grinding kWh/t (Rowland)

DESLIMING • Mass Recovery (%)

• Fe (%); SiO2 (%); Al2O3 (%); P (%); Mn (%);

LOI (%); CaO (%); TiO2 (%); MgO (%); K2O

(%); Na2O (%)

FLOTATION

• Three separated flotation using 100, 140 and

180 g/t of amine (flotation A, B and C,

respectively) and 500 g/t of starch.

• Froth for 1 minute and then till 10 minutes

• Mass Recovery (%)

• Fe (%); SiO2 (%); Al2O3 (%); P (%); Mn (%);

LOI (%); CaO (%); TiO2 (%); MgO (%); K2O

(%); Na2O (%)

• Mineralogy to concentrate B: Specularite (%);

Goethite (%);Hematite (%); Quartz (%); Others

(%)

REGRINDING • Feed (%): +45μm

• Regrinded (%): +45μm

HISTOGRAM AND PROBABILITY PLOT IS

AVAILABLE PER EACH PARAMETER

PARAMETERS PRESENTED

METALLURGICAL

PARAMETERS 2

11

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

12

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

Standard test’s Amine Consuption (g/t)

13

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

PF Standard Test - SiO2 + Al2O3

14

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

PF Standard Test - SiO2 + Al2O3 > 3,0%

15

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

DRILLHOLE 148

Massa: 71.719t

DRILLHOLE 28

Massa: 65.852t

Total Concentrate Mass SiO2 + Al2O3 >3.0% in

standard test: 137.571t of ~1bi = 0,014%

16

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

DRILLHOLE 28: Interval from 63.0m to 78.0m

Block mass SiO2+Al2O3> 3.0: 65.852t

17

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

Grade of SiO2 e Al2O3 in the ROM

18

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

Log description - SEFDSP28

Drill Hole SEFDSP 28

From 49,60 To 74,85

Friable itabirite with levels stronger siliceous.

Locally with specularite. Lenses of schists are founded.

Comments – This interval of friable itabirite with lenses of

schist are located closed of shear zone that is

characterized by quartz and specularite associated a

hydrothermal process. This process and mineralogy

(white mica) of schist are probable responsible for values

of alumina. The chemical formula is

KAL2Si3AlO10(OH,F)2 and the composition is 11.82%

K2O, 38,38%Al2O3,45,23%SiO2,4,29%H2O

19

INPUT PROCESS

PARAMETERS IN

BLOCK MODEL

3

Photos of drillcore box that show lenses of quartz-sericite schist interlayer with friable itabirite. In according with sampling procedure lenses of waste material with thickness less than 1 meter, it is sampling together with itabirite.

20

4 CHECK GEOMETALLURGICAL

BLOCK MODEL WITH

DRILLHOLE SAMPLES AT STD

TEST AND

MINI PILOT PLANT

Drillhole

A

Drillhole

B

Drillhole

C

Sample tested

Sample tested

RFe = “y”%

RFe = “x”%

RFe = “z”%

According

geometallurgical

study

To check An example with

iron recovery

Process

parameters

variability

trough deposit

Actual Status

21

5

CHECK

GEOMETALLURGICAL

BLOCK MODEL

WITH LARGE

SAMPLES

(PILOT TESTS)

Comparison

between

bench scale

test, MPP and

pilot test

22

MAIN PILOT PLANT RESULTS

23

17 Sections Study

• Pilot and bench tests per each

section and global sample

completed for IF and ISC.

• IC study already commenced

(Fund. Gorceix): Liberation study

and WI in process

• Initial program: 800 standard tests.

Samples collected across all

mineral body in X, Y and Z position.

•Both Geological and Process

parameters modelling - Pioneer

application at this level of detail in

Iron ore mining.

First 5-years pit Program

• Pilot and bench tests finished.

• PF sent to regrinding tests in

Metso/USA. Acceptable levels of

energy.

•In progress: Pipeline/Rheology

studies and Pilot Larox Ceramec

Filter.

MINAS RIO GLOBAL STUDIES

MINAS RIO SPECIFIC STUDIES

6 to 10 years pit Program 11 to 15 years pit Program

Global Sapo Sample- IF+ISC 6t Geometallurgical Modelling

• Pilot test with a global sampling,

representative of first 5 years pit

finished.

•Part of each interval sampled from

drillcore sample have been sent to

standard test


representative of 6 to 10 years pit

finished.



standard test


representative of 11 to 15 years

pit finished.

•Part of each interval sampled

from drillcore sample have been

sent to standard test

CONTENTS

//s03dc01/depto/Diretoria_Operacao/Servicos_tecnicos/Desenvolvimento de Processos/MINAS RIO/WORKSHOP PROCESSO/DESENVOLVIMENTO DE PROCESSOS/APRESENTAÇÕES/Minas Rio Process development Janeiro2010.ppt






Sampling per drillcore: 1

samples for each lithology

per drillhole

Bench test program

for each sample per

section

Part of sample per

section composed a

“General sample” per

lithology considering all

17 sections

2) Blending per section

3) General blending

for each litotype

Pilot test Program:

- 3 general pilot test (IF,

ISC and IC) ~1t per test Drillcore blending

composing a general

sample for each lithology

per section

17 SECTIONS STUDY

25

Mass Fe

Fe

Feed

ROM

Fe

Conc

SiO2

Feed

ROM

SiO2

Conc

Al2O3

Feed

ROM

Al2O3

Conc

P Feed

ROMP Conc

Mn

Feed

ROM

Mn

Conc

LOI

Feed

ROM

LOI

Conc

7.909.600.IF.TP 51% 80% 43,69 68,73 33,36 0,59 2,41 0,39 0,041 0,026 0,272 0,209 0,87 0,22

7.909.000.IF.TP 45% 72% 43,55 68,71 34,84 0,53 1,72 0,44 0,034 0,025 0,121 0,186 0,81 0,29

7.908.400.IF.TP 36% 71% 34,82 68,43 47,47 0,78 1,47 0,48 0,039 0,045 0,025 0,039 0,89 1,31

7.907.800.IF.TP 45% 76% 40,87 67,97 37,78 1,07 2,09 0,57 0,045 0,043 0,257 0,252 1,06 0,59

7.907.200.IF.TP 43% 80% 37,05 69,11 45,21 0,69 1,06 0,19 0,019 0,009 0,059 0,022 0,40 0,11

7.906-000.IF.TP 52% 85% 42,64 69,02 37,31 0,54 0,87 0,14 0,019 0,013 0,268 0,389 0,44 0,16

7.906.600.IF.TP 42% 78% 37,34 68,93 44,54 0,73 1,30 0,28 0,017 0,009 0,029 0,035 0,60 0,26

7.905.400.IF.TP 52% 85% 42,12 69,01 38,64 0,83 0,86 0,31 0,017 0,018 0,020 0,024 0,12 0,08

7.904.800.IF.TP 58% 84% 47,75 69,06 31,07 0,94 0,26 0,11 0,022 0,013 0,019 0,009 0,26 0,11

7.904.200.IF.TP 43% 71% 42,59 69,74 37,51 0,47 0,92 0,23 0,018 0,014 0,023 0,031 0,51 0,11

7.903.000.IF.TP 44% 83% 36,42 69,09 46,45 0,65 1,08 0,35 0,015 0,013 0,010 0,020 0,26 0,05

7.902.400.IF.TP 50% 86% 40,79 69,30 40,64 0,55 0,70 0,25 0,014 0,011 0,010 0,009 0,20 0,01

7.900.600.IF.TP 45% 85% 36,36 68,72 46,95 1,40 0,59 0,13 0,010 0,009 0,020 0,029 0,31 0,09

7.900.000.IF.TP 52% 88% 40,71 69,25 41,29 0,66 0,26 0,17 0,009 0,009 0,020 0,022 0,11 0,04

7.899.400.IF.TP 62% 92% 45,96 68,30 33,12 2,02 0,64 0,12 0,017 0,009 0,048 0,041 0,30 0,05

7.898.800.IF.TP 52% 89% 40,42 69,02 41,12 0,75 0,65 0,29 0,012 0,009 0,020 0,026 0,28 0,17

7.909.600.ISC.TP 30% 63% 32,87 68,53 52,02 0,51 0,73 0,18 0,009 0,010 0,010 0,031 0,10 0,13

7.908.400.ISC.TP 42% 84% 34,42 68,71 49,67 0,92 0,73 0,35 0,042 0,066 0,024 0,041 0,19 0,25

7.906.600.ISC.TP 40% 82% 33,01 68,28 52,16 1,84 0,43 0,36 0,010 0,009 0,024 0,037 0,09 0,07

7.905.400.ISC.TP 35% 68% 34,91 68,22 49,60 0,46 0,35 0,31 0,010 0,013 0,030 0,031 0,04 0,11

7.904.800.ISC.TP 39% 73% 36,29 69,12 47,26 0,16 0,45 0,26 0,040 0,014 0,079 0,015 0,15 0,23

7.903.600.ISC.TP 43% 78% 38,04 68,51 43,84 1,37 1,15 0,38 0,019 0,013 0,033 0,009 0,43 0,11

7.903.000.ISC.TP 37% 82% 30,71 68,51 54,68 1,34 0,86 0,33 0,013 0,010 0,029 0,053 0,34 0,09

7.898.800.ISC.TP 36% 82% 30,47 68,86 55,71 0,99 0,44 0,34 0,014 0,011 0,079 0,084 0,11 0,01

Global Average 45% 80% 38,49 68,80 43,43 0,87 0,92 0,29 0,021 0,017 0,064 0,069 0,37 0,19

IF Average 48% 81% 40,82 68,90 39,83 0,83 1,06 0,28 0,022 0,017 0,076 0,084 0,46 0,23

ISC Average 38% 77% 33,84 68,59 50,62 0,95 0,64 0,31 0,020 0,018 0,039 0,038 0,18 0,13

Recovery (%)

Section

Grade (%)

STANDARD TEST

17 Section Study – Standard Test Results

26

17 SECTIONS STUDY PILOT TEST - IF

Minas Rio Expected (%)

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

Minas Rio Pilot Test IF (%)

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

47,6 81,5 39,7 68,3 42,3 1,3 0,93 0,11 0,019 0,015 0,42 0,17

27


Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

Minas Rio Pilot Test ISC (%)

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

44,2 77,4 35,0 69,2 49,8 0,95 0,64 0,18 0,020 0,020 0,30 0,10

17 SECTIONS STUDY PILOT TEST - ISC

28

17 Sections Study






and WI in process







Iron ore mining.





energy.



Filter.







finished.



standard test



finished.



standard test



pit finished.




CONTENTS







29

GLOBAL SERRA DO SAPO SAMPLE:

A PILOT PROCESSING WITH DEPOSIT’S GLOBAL SAMPLE - 6t

2) Chemical

analyses

35kg per sample

During 07-08 drilling campaign

6,300 samples, collected in

drillcores intervals with 5m,

~35kg each one, were sent to

chemical analyses.

(6,300 x ~35kg = ~220t)

X-Ray 100g

Chemical analyses result:

Input Geological model

5) Beneficiation

Pilot test:

Grinding

Desliming

flotation (check

criterias)

Pilot test at

Ouro Preto/BRA

7) Filtering

6) Regrinding Test

Pilot test at

York/USA

Concentrate

1) Drilling

3) Anglo

ferrous file

~34kg x 6,300 =

~210t avaiable

to be tested

4) Blending sample

2.329 samples were blended

bulding a representative sample

of “Serra do Sapo” deposit (6t)

30

GLOBAL SERRA DO SAPO SAMPLE:

A PILOT PROCESSING WITH DEPOSIT’S GLOBAL SAMPLE - 6t


Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

Minas Rio Pilot Test ISC + IF (%)

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

50,2 87,3 39,3 68,5 41,7 0,57 1,05 0,24 0,014 0,021 0,35 0,19

31

17 Sections Study






and WI in process







Iron ore mining.





energy.



Filter.







finished.



standard test



finished.



standard test



pit finished.




CONTENTS







32

First five

years pit • Blending of 4t samples from

drillcore representing first five

years ROM

• Processing in pilot scale

evaluating process behavior.

Pilot Plant

Minas Rio Pilot Test “Pit Five Years sample”

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P Conc LOI

ROM

LOI

Conc

46,8 79,7 40,14 68,40 39,80 1,21 1,25 0,42 0,018 0,015 0,38 0,11


Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

First 5-years Program

33

17 Sections Study






and WI in process







Iron ore mining.





energy.



Filter.







finished.



standard test



finished.



standard test



pit finished.




CONTENTS







34

6 to 10

years pit

• Blending of 4t samples from

drillcore representing first five years

ROM



Pilot Plant

6 to 10 years pit Program

Minas Rio Pilot Test “6 to 10 Years pit sample”

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P Conc LOI

ROM

LOI

Conc

47,4 83,5 38,5 67,8 42,5 1,0 1,15 0,31 0,019 0,019 0,21 0,17


Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

35

17 Sections Study






and WI in process







Iron ore mining.





energy.



Filter.







finished.



standard test



finished.



standard test



pit finished.




CONTENTS







36

11 to 15

years pit • Blending of 4t samples from

drillcore representing first five

years ROM



Pilot Plant

11 to 15 years pit Program

Minas Rio Pilot Test “11 to 15 Years pit sample”

Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P Conc LOI

ROM

LOI

Conc

46,1 85,1 36,9 68,1 43,8 1,0 1,20 0,33 0,020 0,019 0,58 0,80


Mass

Recovery

Metalurgical

Recovery

Fe ROM Fe Conc SiO2

ROM

SiO2

Conc

Al2O3

ROM

Al2O3

Conc

P

ROM

P

Conc

LOI

ROM

LOI

Conc

46,8 80,0 39,8 68,0 40,4 0,90

37

17 Sections Study






and WI in process







Iron ore mining.





energy.



Filter.







finished.



standard test



finished.



standard test



pit finished.




CONTENTS







38

Pellet Feed - Main Results Obtained in Pilot Tests

Fe SiO2 Al2O3

SiO2

+

Al2O3

P P.F. RM RFe

Global S. Sapo sample 68,5 0,57 0,24 0,81 0,021 0,19 50,2 87,1

17 sections - global IF 68,3 1,29 0,11 1,41 0,015 0,17 47,6 81,5

17 sections - global ISC 69,2 0,95 0,18 1,13 0,020 0,10 44,2 77,4

First 5 years pit 68,4 1,21 0,42 1,63 0,015 0,11 46,8 79,7

6 to 10 years pit 67,8 1,00 0,31 1,31 0,019 0,17 47,4 83,5

11 to 15 years pit 68,1 1,00 0,33 1,33 0,019 0,80 46,1 85,1

Products

39

MINERAL LAB AND PILOT PLANT

40

Geology

Drillcore file -

600m2

Lab and Pilot

Plant

600m2 Screening and

Crushing

Leasure Square -

future

GALPÃO CÓRREGO PEREIRA

Laboratories and Pilot Plant – Overview

41

Laboratories and Pilot Plant – Overview

concentrado

Curva de recuperação

Y = 45,842 Ln(x) – 122,06

42

Lab e Pilot Plant – Overview

Minas Rio

Industrial Plant

43

Crushing and Screening – External Area

Minas Rio Pilot Plant

44

Grinding, Deslaming e Flotation – Internal Area


45

Grinding e Deslaming – Internal Area


46

Flotation – Internal Area


47

Jigging

Magnetic Separation


48

Lab Preparation e Bench Flotation – view 1

49

Lab Preparation e Bench Flotation – view 2

Bench

Flotation

50

Laboratório Análise Química – Raio X

51

X-Ray Lab – Sample Preparation

52

Mineralogy

53

Mini Pilot Plant

THANK YOU!

Contact :

[email protected]

[email protected]

angloamerican ppt standard version - adimb · 2 grelhas vibratórias (metso) 3.982 t/h/und* 2...

Documents