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ArticleName Test trials of a process to produce briquettes from coal mining waste
DOI 10.17580/gzh.2021.02.12
ArticleAuthor Ketegenov T. A., Yushina T. I., Kalugin S. N., Kamunur K.

Institute of Combustion problems, Almaty, Kazakhstan:

T. A. Ketegenov, Chief Executive Officer, Doctor of Chemical Sciences

K. Kamunur, Rescarcher, PhD


NUST MISIS College of Mining, Moscow, Russia:
T. I. Yushina, Head of a Department, Associate professor, Candidate of Engineering Sciences,


Al-Farabi Kazakh National University, Almaty, Kazakhstan:
S. N. Kalugin, Associate Professor, Doctor of Chemical Sciences


At the present time, coal production wastes up to 2 % of fine fraction, which has adverse impact on the environment. On the other hand, coal fines can be a feedstock to obtain different products of chemical processing—benzines, oils, briquettes, etc. For this reason, it is necessary to develop dedicated technologies to utilize fine waste in manufacture of products having high added value. The experimental results demonstrate usability of wheat bran as a binder in coal waste briquetting. It is found how the binder and the briquetting conditions influence the physical and mechanical properties and combustion characteristics of coal briquettes. The optimized coal briquetting conditions are: carbonization of feedstock, use of binder in quantity of 25–30 mass%, briquetting pressure of 4 MPa. Thus, the authors have analyzed the influence of the briquetting conditions on the properties of coal briquettes, and have tested the earlier developed approaches to transformation of Oi-Karagai coal fines into a target product of high added value.
The authors appreciate participation of A. Karagulanov, fellow of the Al-Farabi Kazakh National University in this study.
The work was performed with the grant support of the Ministry of Education and Science RK-A RO

keywords Coal mining, processing, semicoking, briquetting, chromatogram, properties

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