Extraction of iron-containing catalyst from chlororganic wastes generated by ethylene chlorination
| Autor: | Mykola Shpariy, Volodymyr Starchevskyy, Zenovii Znak, Roman Mnykh, Ihor Poliuzhyn |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
020209 energy
0211 other engineering and technologies Energy Engineering and Power Technology chemistry.chemical_element Hydrochloric acid organochlorine wastes 02 engineering and technology Combustion Industrial and Manufacturing Engineering Vinyl chloride law.invention chemistry.chemical_compound law burning sludge Management of Technology and Innovation lcsh:Technology (General) 021105 building & construction 0202 electrical engineering electronic engineering information engineering Chlorine lcsh:Industry Electrical and Electronic Engineering Filtration vinyl chloride Aqueous solution extraction of iron-containing catalyst Chemistry Applied Mathematics Mechanical Engineering Extraction (chemistry) Pulp and paper industry burning of organic waste Computer Science Applications Control and Systems Engineering extraction lcsh:T1-995 lcsh:HD2321-4730.9 Waste disposal |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 2, Iss 10 (104), Pp 19-26 (2020) |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2020.201696 |
| Popis: | The technologies for extracting an iron-containing catalyst from process streams of direct chlorination of ethylene, as well as methods for the disposal of organochlorine wastes from vinyl chloride production, are considered. Problems arising from thermal waste disposal necessitate studies on the extraction of iron compounds from organochlorine by-products of the ethylene chlorination process. X-ray fluorescence analysis found that the composition of the burning sludge, as the main elements, includes iron – 33.52% and chlorine – 32.69%. The extraction of iron compounds with aqueous and aqueous acidic media under mechanical stirring is studied. It is shown that the addition of hydrochloric acid to the solution does not contribute to an increase in the degree of extraction of iron compounds. It is found that an increase in the duration of extraction and the temperature of this process provides a degree of extraction of iron compounds of more than 80%. The process of separation of an aqueous-organic emulsion, which is formed during extraction, by sedimentation, filtration and centrifugation, is investigated. It is found that at a temperature of about 80 °C there is an effective and rapid separation of the aqueous and organic phases as a result of sedimentation. Based on the obtained experimental results of the extraction study, a functional scheme for the extraction of an iron-containing catalyst is proposed, as well as ways to solve technological and environmental problems that arise during the combustion of organochlorine wastes from vinyl chloride production. The scheme provides for the use of the heat of hot organochlorine wastes for the extraction of iron compounds with industrial water. In addition, the use of the heat of the gases generated during the combustion of organochlorine wastes is provided for heating air, which low-boiling components from these wastes are blown off. In the future, this air is used to burn organochlorine wastes purified from iron compounds |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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