Authors: R.P. Kolmykov, A.V. Petrushina

Title of the article: The influence of density of fly ash and binder pellets on the analytical signals of some elements during emission spectral analysis with inductively coupled plasma and laser sampling

Year: 2019, Issue: 5, Pages: 14-19

Branch of knowledge: 05.17.01 Technology of inorganic substances

Index UDK: 543.053

DOI: 10.26730/1999-4125-2019-5-14-19

Abstract: This work is devoted to the determination of chemical composition of fly ash (FA). This parameter is very important as it largely determines the possibility of processing this material and its probable harmful effect on the environment. We chose laser assisted optical emission spectrometry with inductively coupled plasma (LA ICP OES) as a research method. The aim of this work is to determine the possible influence of the density of compact materials obtained from coal ashes and a binder on analytical signals of the elements Ba, Be, Cr, Cu, Li, Mn, Ni, Pb, Sc, Sr, V, Zr, and Zn. We used the referenced fly ash ZUK–1 and pure microcrystalline cellulose (MCC) as a binding agent with the weight ratio 1:1 to produce pellets. To obtain compact materials based on coal ash, the binder is suitable if its chemical purity is provided. Having completed the experiments, we found that an increase in the density of pellets leads to a rise in the analytical signals of the elements. It is necessary to carry out additional experiments in order to draw conclusion about the effect of pressing pressure on the accuracy of analysis.

Key words: fly ash ICP-OES laser ablation

Receiving date: 05.11.2019

Approval date: 01.01.1970

Publication date: 31.12.2019

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