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The codification of coal in State Standard 25543-88 is compared with the international codification of coal of medium and high rank. The ranking of coking coal on the basis of State Standard GOST 25543-88 is evaluated.
The action of activators that include oxyethylated groups is investigated. Supplying PAV-1 surfactant before the collection agent intensifies flotation in a number of ways: by changing the physicochemical properties of the diffuse layer of coal particles (reducing the unit surface charge); by...
A direct method is proposed for determining the clinkering properties of rammed coal and batch used for industrial coking. This method permits evaluation and selection of individual clinkering coals and satisfactory prediction of the coke quality obtained with preliminary ramming of the coal batch.
At OAO Alchevskkoks, two coke batteries (9A and 10A) with preliminary consolidation (ramming) of the batch have been introduced and successfully operated. These are the first such batteries to operate within the Commonwealth of Independent States. Dry slaking is used for the coke from battery...
The addition of pyrolytic slag obtained from tire casings to coking batch is considered, along with methods of processing rubber goods and the products obtained. Analysis of the pyrolytic liquid indicates that its addition to coal batch will yield metallurgical coke of normal strength.
Samples of coal tar and pitch from Ural and Siberian coke plants are analyzed, in order to determine the content of polycyclic aromatic hydrocarbons on the list compiled by the United States Environmental Protection Agency. The content of the basic polycyclic aromatic hydrocarbons in industrial...
The production of monoethanolamine is considered, as well as its use as a separating agent in liquid extraction (and extractive rectification) for the production of pure organic compounds in the coke, oil, and chemical industries in Russia and around the world.
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