Wastes, lead battery reprocessing

Additional physico-chemical information

Administrative data

Endpoint:

other: representative mineralogy

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: non GLP but other quality assurance

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Principles of method if other than guideline:

Chemistry /elemental analysis was determined using ICP (inductively Coupled Plasma spectroscopy). Metal speciation/metal mineralogy was assessed from Sequential extraction/metal analysis and mineralogical analysis (XRD and microscopes equipped with EDS (Energy Dispersive Spectrometry) and WDS (Wavelength Dispersive Spectrometry) analysers. The interpretation of the overall results was performed by expert (with profound knowledge of metal particularities).

GLP compliance:

no

Remarks:

other quality assurance

Test material

Test material information

Constituent 1

Reference substance name:

Wastes, lead battery reprocessing

EC Number:

305-445-7

EC Name:

Wastes, lead battery reprocessing

Cas Number:

94551-99-2

Molecular formula:

Molecular weight/formula concept not applicable to Inorganic UVCB (complex metal containing substance)

IUPAC Name:

Wastes, lead battery reprocessing

Results and discussion

Results:

The studied waste batter reprocessing sample 10TT01254 contains 74% lead, 5.4% sulphur, 0.75% SiO2, 0.67% CaO and traces of other elements.
The studied waste batter reprocessing sample 10TT01254 consists mainly of lead oxides (57.5%) and anglesite, PbSO4 (25%). Other notable mineral phase is metallic lead (15.4%). Calcium-bearing lead oxide (2%) occurred as accessory mineral phases.

Any other information on results incl. tables

Chemical composition of reference sample

ORC ref.			OR41	P1= H2O	P2= H2SO4	P3= KCN+Br-MeOH		P4= HNO3
Sample			20000171/45	Psum=	sum of	four phases
Lab code			10TT01254	TOT=	total	dissolution
				KEM=	ion exchange	chromatography
Substance			Waste battery reprocessing	ELTRA=	S/C analyzer
EINECS			305-445-7	Satmagan =	Fe3O4	analyzer
Consortium reference No.			16
As	P1	%	<0.006	Ag	KEM	%		<0.002
	P2	%	<0.016	B	KEM	%		N/A
	P3	%	<0.008	Bi	TOT	%		0.006
	P4	%	<0.006	Cd	TOT	%		<0.004
	PSUM	%	<0.006	Co	TOT	%		<0.004
	TOT	%	0.009	Mo	TOT	%		<0.004
				Sb	TOT	%		0.18
Cu	P1	%	<0.006	Se	TOT	%		<0.004
	P2	%	<0.016	Sn	TOT	%		0.064
	P3	%	<0.008	Te	TOT	%		<0.004
	P4	%	<0.006	Zn	TOT	%		0.14
	PSUM	%	<0.006
	TOT	%	0.008	SiO2	KEM	%		0.75
				Al2O3	TOT	%		0.042
Fe	P1	%	<0.006	CaO	TOT	%		0.67
	P2	%	0.15	Cr2O3	TOT	%		0.006
	P3	%	0.008	K2O	TOT	%		0.048
	P4	%	0.069	MgO	TOT	%		0.027
	PSUM	%	0.23	MnO	TOT	%		0.045
	TOT	%	0.25	Na2O	TOT	%		0.11
				(SO4)2	KEM	%		17.1
Ni	P1	%	<0.006
	P2	%	<0.016	S	LECO	%		5.43
	P3	%	<0.008	C	LECO	%		0.67
	P4	%	<0.006
	PSUM	%	<0.006	Satmagan		%		0
	TOT	%	<0.004
Pb	P1	%	0.38
	P2	%	0.27
	P3	%	4.13
	P4	%	64.50
	PSUM	%	69.28
	TOT	%	74.0

Mineralogical composition of reference sample

Lab code		10TT01254
Mineral composition		%
Lead oxides	Pb2O6, PbO	57.47
Anglesite	PbSO4	25.04
Lead	Pb	15.42
Lead calcium oxide	PbCaO6	2.07
Total		100.00
Distribution of lead, -%
Lead Oxides		57.81
Anglesite		21.65
Lead		18.77
Lead calcium oxide		1.77
Distribution of calcium, -%
Lead calcium oxide		40.72
Lead oxides		40.39
Anglesite		18.89
Distribution of Si & Fe, -%
Lead oxides		100.00

Applicant's summary and conclusion

Conclusions:

Good quality study that assessed full chemistry and mineralogy of one representative samples of wastes lead battery reprocessing. The mineralogy (and the distribution pattern for each key element, i.e. % from Total into the various mineralogical forms/species present into the UVCB) of the reference sample can be used to derive the classification of wastes lead battery reprocessing samples (mixture toxicity rules).

Executive summary:

The studied waste batter reprocessing sample 10TT01254 consists mainly of lead oxides (57.5%) and anglesite, PbSO4 (25%). Other notable mineral phase is metallic lead (15.4%). Calcium-bearing lead oxide (2%) occurred as accessory mineral phases.

The mineralogy of the reference sample can be used to derive the classification of the sample but also to predict the mineralogy of other wastes lead battery reprocessing samples. The calculator sheet, which is used to derive the classification and which reflects particular assumptions that are made, can be found in attachment above (attached background material).