Authors: T.G. Cherkasova, I.V. Isakova, A.V. Tihomirova, E.V. Cherkasova, A.A. Golovachev

Title of the article: Definition of industrial significant conditions rare elements in ash waste Kuzbass

Year: 2021, Issue: 5, Pages: 37-44

Branch of knowledge: 05.17.01 Technology of inorganic substances

Index UDK: 669.054.8

DOI: 10.26730/1999-4125-2021-5-37-44

Abstract: The use of coal as a fuel has led to an increase in dust emissions from thermal power industries, which catastrophically pollutes the atmosphere of Kuzbass. Also, during the work of thermal power plants, a huge amount of ash and slag material waste is formed. In this regard, the development of measures for the processing of the above-mentioned wastes is very relevant. One of the areas of co-selective recycling technologies was the separation of rare earth elements from all possible sources, and that was very useful from both an economic and an environmental point of view. Work is being carried out with a view to comprehensive exploration and analysis of the reserves of useful components of ash and slag materials for the involvement of these wastes in secondary processing. The article shows that for the group determination of matrix elements, the use of the atomic emission spectrometry (NPP) method in combination with a multi-channel emission spectrum analyzer (MAES) is economically profitable. Preference in the analysis of impurity elements has recently been given to the method of inductively coupled plasma mass spectrometry (ICP-MS). The experiment was conducted with ash and slag materials of the Kemerovo State District Power Station in order to determine the content of rare earth elements and meet the requirements of their stock to an industrial conditioning minimum in content. The test results of the samples make it possible to conclude that in ash and slag waste there is a significant amount of rare earth metals of the yttrium group, which are in great demand in high-tech sectors of the modern economy

Key words: ash and slag materials optical emission spectrometry inductive plasma mass spectrometry extraction processing matrix elements micro-impurities

Receiving date: 01.10.2021

Approval date: 25.10.2021

Publication date: 24.12.2021

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