Эпоксидирование подсолнечного масла в системах на основе пероксида водорода и органических кислот
Електронний архів E-archive DonNTU – (Electronic archive Donetsk National Technical University)
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| Title |
Эпоксидирование подсолнечного масла в системах на основе пероксида водорода и органических кислот
EPOXIDATION OF SUNFLOWER OIL WITH SYSTEMS BASED ON HYDROGEN PEROXIDE AND ORGANIC ACID |
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| Creator |
Сердюк, А. А.
Касянчук, М. Г. Опейда, И.А. Ткаченко, Т.Н. Сердюк, А. И. |
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| Subject |
растительное масло
перекись водорода эпоксидирование пероксикислоты vegetable oil hydrogen peroxide epoxidation peroxyacids |
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| Description |
Epoxidation of vegetable oils is an important industrial process, as the products are used as plasticizers and stabilizers for polymers production. For example, halides are released during operation and recycling of halogen-containing polymers (halobutyl and polyvinyl chloride). This is the main reason for the rapid degradation of the polymer, corrosion of equipment and harm to human health. For preventing this process stabilizing agents, which capable of absorbing hydrogen halides are introduced into the polymer. There are numerous methods for the epoxidation of vegetable oils. However, many of them require using of uncommon and / or expensive catalysts, and sometimes require additional costs for the elimination and purification of the final product. This article focuses on the selection of epoxidation conditions that would ensure high yields when using the most simple techniques, environmentally friendly and cheap reagents. Sunflower oil is interested for use in the epoxidation process, because it contains a significant amount of mono- and polyunsaturated fatty acids, and has a low cost and high volume production in our country. Influence of conditions (composition epoxidation mixture, reaction time, stirring) to yield the epoxidation of sunflower oil discussed in the article. The use of cation exchanger KU-2-8 (which can be a carrier of the active catalytic centers) or effective catalyst for many oxidation processes — N-hydroxyphtalimide not affect the yield of the desired product. It is shown that the best is to use formic acid and hydrogen peroxide under intensive stirring in large quantities and with the gradual addition of peroxide to the reaction mixture. Yield epoxidized sunflower oil was ≈ 72% according to 1H-NMR spectroscopy (decrease of the proton signals of the double bonds in comparison with the original signals in sunflower oil evaluated). Эпоксидирование растительных масел является важным промышленным процессом. В статье рассмотрено влияние ряда условий (состав эпоксидирующей смеси, время реакции, перемешивание) на выход продукта эпоксидирования масла подсолнечника. Показано, что оптимальным является использование муравьиной кислоты и пероксида водорода при интенсивном перемешивании в больших объемах и с постепенным добавлением в реакционную смесь пероксида. |
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| Date |
2014-04-15T15:14:40Z
2014-04-15T15:14:40Z 2014 |
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| Type |
Article
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| Identifier |
УДК 541.128+547.915
http://ea.donntu.edu.ua/handle/123456789/25992 |
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| Language |
other
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| Publisher |
Наукові праці ДонНТУ. Серія: Хімія і хімічна технологія. - 2014. - Вип. 1(22). - С. 205-210
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