Journals / A. Âsaui atyndaġy Halyk̦aralyk̦ k̦azak̦-tùrìk universitetìnìn̦ habaršysy / 2020 / Sayı: 117
Synthesis of Surfactants by Condensation of Sulfonated Pyrolysis Resin Fractions with Aqueous Formaldehyde Solutions
- Issue
- 2020 · Sayı: 117
- Pages
- 314–329
- DOI
- —
Abstract
Optimal conditions for condensation of sulfonated naphthalene fraction with 40% formaldehyde aqueous solution are found. As a feedstock, a wide fraction (180–240°C) of the pyrolysis resin of hydrocarbon gases selected at the Atyrau processing plant was used. The chemical nature of the synthesized products, which by their properties resemble surfactants of the «necal» type, has been elucidated. It was shown that the synthesized products have well-pronounced surface-active properties and a floating ability in relation to Karatau phosphate ores. High-molecular water-soluble surfactants can also be used as flocculants in various types of water treatment. With their help, wastewater and process water, as well as drinking water are removed pollution in suspended state.
Özet
Optimal conditions for condensation of sulfonated naphthalene fraction with 40% formaldehyde aqueous solution are found. As a feedstock, a wide fraction (180–240°C) of the pyrolysis resin of hydrocarbon gases selected at the Atyrau processing plant was used. The chemical nature of the synthesized products, which by their properties resemble surfactants of the «necal» type, has been elucidated. It was shown that the synthesized products have well-pronounced surface-active properties and a floating ability in relation to Karatau phosphate ores. High-molecular water-soluble surfactants can also be used as flocculants in various types of water treatment. With their help, wastewater and process water, as well as drinking water are removed pollution in suspended state.