Calcined petroleum coke,GIL

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CPC from Graphite India

Calcined petroleum coke is a product obtained from the high temperature treatment of specified feed-stocks. The feed-stocks (raw petroleum coke) are derived from the distillation of petroleum crude in delayed cokers. Raw petroleum coke is a hard brittle substance, shiny and oily in appearance, very rich in fixed carbon with a very low ash content.

Raw petroleum coke is calcined before it can be usefully employed for various applications in industries as diverse as graphite to metallurge. Calcination consists of heating raw petroleum coke to rid it of volatiles causing it to shrink to obtain dense and strong particles.

Graphite India produces high quality calcined petroleum coke in two basic grades. High Density (HD) and Normal Density (ND). The properties of these grades are tabulated below.

Typical Properties :

Physical:	HD	ND
Real Density g/cc	2.10	2.06
Apparent Density g/cc	1.45	1.40
Hard grove grindability index	33-43	33-43
Chemical:
Fixed Carbon, % min	98.99	98.90
Moisture, % max	0.10	0.10
Volatile Matter Content, % max	0.50	0.50
Ash, % max	0.50	0.50
Sulphur, % max	1.00	1.00
Iron, ppm max	300	300
Nickel, ppm max	15	15

In general, GIL CPC will conform to BIS specifications
IS:8502-1994

Granulometry

Graphite India can supply CPC in grain sizes to match customer needs and specifications. Graphite India with its strong R&D base can produce CPC to conform to customers stringent specifications and applications.

Applications

	Aluminium Industry	Used in manufacture of anodes, cathodes and electrolytic cell side wall lining blocks.

	Ferro Alloys Industry	Used in manufacture of Tamping paste and Soderberg electrodes.

	Ferrous metallurgy	Source of high Purity carbon

Packing

CPC is packed in LDPE lined jute/HDPE bags. Each bag contains 50kgs of coke and is marked with the suppliers name, product name/ grade and the batch number. Packing can also be done to customer specifications.