Blended Anthracite

Historically the coal produced from the opencast operations was blended with the high grade anthracite and sold into bulk markets. This product still remains available upon request.

We can blend the calcined anthracite with our own raw material in order to reduce the % volatile matter to the buyer's specifications should they require a very low volatile anthracite coal.

The blending of our coals allows us to produce designer products.

93CCARBON

HIGH GRADE

Our anthracite has an extremely low ash content with higher fixed carbon compared to overseas ultra-high garde anthracite. Welsh anthracite generally has a low ash content. The quality of the coal produced at Balck Diamond is high grade anthracite. The National Coal Board ranked the coal as “High Grade” 100 anthracite....

95CCARBON

ULTRA-HIGH GRADE

Suitable as a carbon additive to blast furnaces and steel by products. UHG normally has a higher fixed carbon content than HG. Naturally occuring UHG will be extracted from the Peacock seam. This is the highest quality anthracite available and is exceptionally hard with a blue lustre....

99CCARBON

CALCINED

Heat treated anthracite will have virtually no volitile matter resulting in an almost pure carbon. Black Diamond is capable of generating significant amounts of electricity per annum from methane drainage. Alternatively, the gas generated will be used a heat source to produce gas calcinated anthracite....

Specifications

Analysis

Sizes

Ash, db, max %

2.5-5.20

0-13mm

Volatiles, db, avr %

0-14

0-25 mm

Gross CV, db, kj/kg

32,000

25-80mm

Fixed carbon content %

78-95

10-80mm