Application and production technology of thermal activation products of serpentine minerals from industrial wastes

Anatoly I. Nizhegorodov, Alexey N. Gavrilin, Boris B. Moyzes

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Relevance. Serpentine minerals, in large quantities contained in mining waste, are part of vermiculite. Singulite is a specimen of serpentine materials as well as expanded vermiculite. They both are applied in environmental technologies: the first one is applied for detoxification of technologically contaminated lands and water bodies, the second one is applied for soil formation. Expanded vermiculite is also widely used in metallurgy, construction and other industries. So, it is necessary to search for development of technologies and equipment to obtain these materials. The aim of the research is to develop a technology for electric thermal activation of the sungutite in power technological units while burning pre-enriched conglomerates obtained from mining wastes, which contain sungulite, vermiculite and olivine-pyroxene rocks. Methods. The research method is based on the improvement of the technology for sungutite conglomerates converting by adding into the technological process the heat-treatment of upgraded electric modular-trigger furnaces. A module with a movable platform with an electric heater is fixed in the design of the furnaces. Results. The results of the research based on upgrading the technology for thermal activation products of serpentine minerals from industrial wastes allowed developing the power technological units on the base of upgraded electric modular-trigger furnaces or furnaces with a vibrating bottom platform. This technology makes it possible to compensate partly the costs for heating the useless olivine-pyroxene rock and reduce the power capacity of the technological process. The efficiency of upgrading is proved by deficiency-free obtained materials. As a result, a promising technology for production of thermal activation products of serpentine minerals from industrial wastes is developed.

Original languageEnglish
Pages (from-to)67-75
Number of pages9
JournalBulletin of the Tomsk Polytechnic University, Geo Assets Engineering
Volume329
Issue number5
Publication statusPublished - 2018

Keywords

  • Additional module
  • Electric furnace
  • Heat energy
  • Raw conglomerate
  • Serpentine minerals
  • Sungulite
  • Thermal activation
  • Vermiculite

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Waste Management and Disposal
  • Economic Geology
  • Management, Monitoring, Policy and Law

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