Coal Quality

Current coal quality information and initial washability trials indicate the Baruun Naran coals are amenable to produce both coke blend coals and thermal coal products.

Baruun Naran coal is generally ranked high-volatile bituminous A. However there is evidence to suggest there are sections within the thicker seams (e.g. H and T seams) which will probably produce medium-volatile hard coking coal.

Baruun Naran – Indicative Marketing Specification

			Metallurgical Coal	Thermal  Coal
		basis
Total Moisture	%	ar	10.0	9.5
Moisture	%	ad	2.0	2.0
Ash	%	ad	9.5	20.0
Volatile Matter	%	ad	30.0	26.0
Total Sulphur	%	ad	0.6 to 1.0	0.6 to 1.0
Calorific Value	Kcal/kg	ar	6841	5952
	MJ/kg	ar	28.64	24.92
	BTU/LB	ar	12313	10714
Ash Fusibility - Deformation		°C		1200 to 1300
		°F		2200 to 2400
Phosphorus in Coal		ar	0.01 to 0.05
Free Swelling Index			4-7
Giesler Plastometer
Maximum Fluidity		ddpm	500 to1500
Audiber Arnu Dilatometer
Maximum Contraction		%	-20 to -30
Maximum Dilatation		%	-15 to 50
Vitrinite		%	55 to 65
Mean maximum Reflectance		%	0.9 to 1.0

Typical Baruun Naran insitu coal qualities (range)

Chemical/physical attribute	Chemical/physical attribute
Moisture	<10%
Ash	9% to 30%
Sulphur	0.5% to 1.3%
Energy	~6,500kcal/kg (@ 15% Ash)
CSN	2 - 8

Major Economic Seam Stratigraphic Column and Qualities

Major Economic Target Seams

Seam Name H Average Thickness 17.08m Product Type Coking & Thermal

click image to download pdf     click image to download pdf   Seam Name T Average Thickness 16.18m Product Type Coking & Thermal   click image to download pdf     click image to download pdf   Seam Name I J N Average Thickness 5.23m 4.46m 11.02m Product Type Coking & Thermal Thermal Coking & Thermal   click image to download pdf