Authors: A.E. Cherepova, E.S. Ushakova, A.G. Ushakov

Title of the article: Improving the process of sorting abrasives by shape

Year: 2022, Issue: 4, Pages: 33-42

Branch of knowledge: 05.17.07 Chemical technology of fuel and high-energy substances

Index UDK: 504.4.054

DOI: 10.26730/1999-4125-2022-4-33-42

Abstract: The paper considers the current topic of pollution of reservoirs. There are a number of methods for cleaning water spaces, the environmentally safe method is sorption cleaning. However, it has a significant drawback - light weight, windage. Under the influence of unfavorable factors (strong currents and wind), the sorbent is carried over long distances, including spent. The use of magnetic sorbents can be considered as the solution to this problem. The article proposes a technology for obtaining a magnetite core for use in the processes of obtaining a magnetic sorbent for the elimination of emergency spills of oil and petroleum products. The factors affecting the strength of the magnetite core are studied: the nature of the magnetite, the concentration of the hardener, the heat treatment regime. The physical characteristics of two types of magnetite are given. It is not necessary to heat-treat synthetic magnetite to obtain the necessary strength of the magnetite core. In the case of using magnetite from coal burning ash, heat treatment is necessary. The strength of the magnetite core is also determined by the concentration of the hardener, which ranges from 15 to 20%. According to the results of laboratory studies, the optimal temperature of heat treatment is 600C, with this mode of heat treatment, the magnetite core does not change its properties, it becomes stable.

Key words: emergency oil and petroleum product spills magnetic sorbents magnetite core magnetite heat treatment strength

Receiving date: 26.06.2022

Approval date: 30.08.2022

Publication date: 06.10.2022

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