PROCESS RESEARCH OF COAL THERMAL DISSOLUTION IN ORDER TO OBTAIN THE BINDER FOR REFRACTORY MASSES. REPORT 1. PREPARATION OF THE BINDER
https://doi.org/10.17073/0368-0797-2016-8-517-522
Abstract
The paper presents the research results of an experimental coal-chemical pitch, obtained on the base of solvent controlled influence (hydrogen donator) on thermally activated organic mass of coking coal. The authors also have defined the main parameters of preparation of such a pitch of temperature, process time and component ratio. The most active process catalyst was selected. The test product according to the quality factors – volatile-matter content, softening temperature, substance portion, which are not soluble in toluene and quinolones, structural characteristics – corresponds to a high-temperature coke-chemical pitch. It is shown that the maximum conversion level and the best application properties according to traditional quality factors for pitch can be obtained on the base of coal concentrate with the largest content of vitrinite and the thickness of a plastic layer. Coal-chemical pitch is suitable as a binder for the production of refractory masses and contains in dozens of times less carcinogenic benzapyrene, as it is obtained directly from coal without the impact of high temperatures, typical for the coking process.
About the Authors
A. E. Bazegskii
JSC “EVRAZ - Joint West Siberian Metallurgical Plant”, Novo- kuznetsk, Russia
Russian Federation
Russian Federation
Chief Specialist
M. B. Shkoller
Siberian State Industrial University, Novokuznetsk, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair of Mining Ecology and Life Safety
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Review
For citations:
Bazegskii A.E., Shkoller M.B. PROCESS RESEARCH OF COAL THERMAL DISSOLUTION IN ORDER TO OBTAIN THE BINDER FOR REFRACTORY MASSES. REPORT 1. PREPARATION OF THE BINDER. Izvestiya. Ferrous Metallurgy. 2016;59(8):517-522. (In Russ.) https://doi.org/10.17073/0368-0797-2016-8-517-522
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