Slags, copper refining

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: No GLP study but other quality assurance

Cross-reference

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)

Principles of method if other than guideline:

The particle size of the samples is determined by sieving.

GLP compliance:

no

Type of distribution:

counted distribution

Test material

Test material information

Constituent 1

Reference substance name:

Slags, copper refining

EC Number:

266-970-4

EC Name:

Slags, copper refining

Cas Number:

67711-94-8

Molecular formula:

The substance is a UVCB for which it is not possible to provide a molecular formula and a molecular weight.

IUPAC Name:

slag, copper refining

Details on test material:

Sample collection made according to ECI/REACH Copper Consortium Standards Protocols (see IUCLID section 1.4)
Sample Description Sample Code Lab code
B8 copper-rich slag from Secondary smelter MC_B8_531_xxx_0904 09TT03335
B8 Cu-rich slag, from slag concentrator, primary smelter (representative, homogenized) slag concentrate 09TT03987
B8 Cu-rich slag from FSF, primary smelter (representative, homogenized) slag from FSF, primary smelter 09TT05248
B8 Cu-rich slag from anode furnace, primary smelter (representative, homogenized) slag from anode furnace 09TT05247

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size 2

Percentile:

D50

Mean:

40 µm

Remarks on result:

other: 09TT03335

Particle size 3

Percentile:

D50

Mean:

29 µm

Remarks on result:

other: 09TT03987

Particle size 4

Percentile:

D50

Mean:

1 552 µm

Remarks on result:

other: 09TT05247

Particle size 5

Percentile:

D50

Mean:

2 319 µm

Remarks on result:

other: 09TT05248

Any other information on results incl. tables

Table 4: Particle size distribution

Sample		09TT03335		09TT03987		09TT05247		09TT05248
Size		Retained		Retained		Retained		Retained
mesh	mm	g	%	g	%	g	%	g	%
6	3.360					27.99	21.62	30.87	24.90
8	2.380					18.94	14.63	29.72	23.97
16	1.190					26.88	20.76	28.7	23.15
20	0.841					9.03	6.97	7.36	5.94
30	0.595					8.63	6.67	6.36	5.13
40	0.420					7.11	5.49	5.35	4.31
50	0.297	0.10	0.08	0		5.36	4.14	3.81	3.07
140	0.106	27.10	21.85	3.7	3.02	12.1	9.35	7.21	5.81
200	0.075	13.40	10.81	10.4	8.48	2.94	2.27	1.37	1.10
270	0.053					10.49	8.10	3.24	2.61
325	0.045	18.00	14.52	29.1	23.72
	0.020	20.10	16.21	30.6	24.94
	-0.020	45.30	36.53	48.9	39.85
Sum		124	100	122.7	100	129.47	100	123.99	100

Sample	Slag	Slag	Slag	Slag
Sample	B8	B8	B8	B8
Outotec code	09TT03335	09TT03987	09TT05247	09TT05248
D80, µm	117	64	>3360	>3360
D50, µm	40	29	1552	2319

Applicant's summary and conclusion

Conclusions:

the study provides granulometry/particle size distribution patterns of various representative slags, copper refining.

Executive summary:

Measurements according OECD 110 (partcile size distribution) on various representative slags, copper refining were performed. The summary of the results are:

Sample	Slag	Slag	Slag	Slag
Sample	B8	B8	B8	B8
Outotec code	09TT03335	09TT03987	09TT05247	09TT05248
D80, µm	117	64	>3360	>3360
D50, µm	40	29	1552	2319

All samples were crushed, grinded to particles less 5mm and homogenized prior to testing. Representative slags from secondary smelting/converter (code 3335) and from concentrator (code 3987) showed a particle size distribution particular to fines, with more than 20% in the fraction smaller than 20µm. . Representative slags from primary smelter/flash furnace (code 5248) and from refining/anode furnace (code 5247) showed a particle size distribution characteristic to massives, with no particles below 50µm (worst case).