Intensification of humic acid extraction from lignites
| Autor: | Elena Vorsina, Tatiana Moskalenko, Valery Mikheev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
lcsh:GE1-350 humic acids yield business.industry oxidation humic substances Extraction (chemistry) solid fossil fuels Hydrochloric acid Raw material Solid fuel Pulp and paper industry chemistry.chemical_compound lignite chemistry Reagent organic acids Humic acid inorganic acids Coal processing Hydrogen peroxide business lcsh:Environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 192, p 02024 (2020) |
| ISSN: | 2267-1242 |
| Popis: | One of the methods of initial properties of solid fuels changing by their organic mass oxidation is considered in the paper. Creation of innovative ways of intensification of existing solid fuels processing and their adoption by industry has always been and remains an actual task. Thus the chemical process is the most important stage of raw materials processing into target products. Chemical exposure allows to optimize the technological mode, expanding the scope of control of technological process parameters and, to a certain extent, modify the properties of the resulting products. The article presents the results of experimental research of influence of preliminary oxidation on the lignite organic mass from Kharanorsk and Kangalas deposits by different chemical reagents to determine a degree of this process impact on the efficiency of their processing into humic substances. Inorganic and organic oxidizers of different concentrations were used as reagents. The greatest effect for increasing the humic acids yield was observed when using 6-10 % hydrogen peroxide for oxidation, and 10 % hydrochloric acid. The results of experiments on the coal preoxidation effect can be used as a basis for the development of a new method of lignites processing into humic substances. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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