Coking Coals

Coking Coals


coals from which industrially valuable coke can be made under industrial coking conditions. The coal mainly used for coking in the USSR is from grades C (coking), M (metabituminous), LS (lean-sintering), G (gas), and, to some extent, SS (slightly sintering). The particular features of coking coals include the ability to pass into a plastic state and, under certain temperature conditions, to sinter; a high heat of combustion; and a low content of volatiles and inorganic impurities.

In the USSR in the 1960’s the supply of raw materials for coking was significantly expanded as a result of the development of new coal areas, as well as improvement of existing coking methods and the creation of fundamentally new methods. As a result, the proportion of coal of grade G in the charge (mixture of various types of coal) being coked increased; coal of this grade accounts for most of the coal reserves of the main basins. Work is being done on the use of coals that were not used for coking, such as dry-burning, long-flame, brown, anthracites, and semianthracites.


Agroskin, A. A., and A. K. Shelkov. Rasshirenie ugol’noi bazy koksovaniia. Moscow, 1962.
Syskov, K. I., V. Ia. Tsarev, and O. N. Mashenkov. Granulirovanie i koksovanie burykh uglei. Moscow, 1968.
Agroskin, A. A. Khimiia i tekhnologiia uglia, 2nd ed. Moscow, 1969.


References in periodicals archive ?
China is also the biggest spot buyer, accounting for 73 percent of spot metallurgical coal purchases for all product categories such as premium, second-tier, PCI and semi-soft coking coals, according to SandP Global Platts data for the first 10 months of 2017.
Tavan Tolgoi is by far the largest coking coal deposit in Mongolia with Ovoot being the second largest by reserves and it appears that there are numerous technical and commercial synergies in working together to improve the value of exported Mongolian coking coals.
e Whitehaven Coking Coal W Project (WCCP) is a 200 sq km area located close to the Haig Colliery in Whitehaven, from which millions ofof coking coals were extracted from 1914 until it closed in 1986, much of it beneath the seabed up to C/ve miles oshore.
The quality of the concentrate ranks the Elga deposit among the higher-value grades of coking coals, according to Mechel.
Wood Mackenzie forecasts a strong market for good quality coking coals over the medium to long term driven by large demand increases from rapidly expanding markets such as India and Brazil.
The magnificent growth of the Group recorded in 2008 was mainly attributable to the successful acquisitions of three coking coals mines in July 2008.
The long-term agreement for the delivery of K-9 grade coking coals will enable Mechel to ensure more sustainable utilisation of Yakutugol's production capacity and to ensure sales as part of the output from the Elga deposit in the long-term.
Coking coals on the other hand are not fuels: they are raw materials used in the production of coke.
Importantly, the Australian producers have been successful in reclassifying semi-hard coking coals back into the hard coking-coal category.
If a fraction of the coke could be replaced by fuels of lower rank without sacrificing metal quality, the economics of cupola iron could be improved, coking coals could be conserved and coke shortages could be avoided.
He further commented, "While INR has always served the European steel producers, this opportunity opens a vast new market for our coking coals and helps establish INR's name in the Asia/Pacific region.
15, 1998--The Broken Hill Proprietary Company Limited (BHP) has concluded annual price negotiations with each of the Japanese Steel Mills (JSM) for deliveries of hard coking coals from BHP-managed coal mines in the Japanese fiscal year commencing 1 April 1999.