RU2009109853A - METHOD FOR PURFLUOROURENES CLEANING - Google Patents
METHOD FOR PURFLUOROURENES CLEANING Download PDFInfo
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- RU2009109853A RU2009109853A RU2009109853/04A RU2009109853A RU2009109853A RU 2009109853 A RU2009109853 A RU 2009109853A RU 2009109853/04 A RU2009109853/04 A RU 2009109853/04A RU 2009109853 A RU2009109853 A RU 2009109853A RU 2009109853 A RU2009109853 A RU 2009109853A
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- halogen
- sulfuric anhydride
- product
- chemical treatment
- sulfuric
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1. Способ очистки перфтораренов, отличающийся тем, что для получения продукта высокой чистоты первоначально проводят химическую обработку продукта-сырца смесью серного ангидрида и свободного галогена, после чего целевой продукт выделяют с помощью ректификации. ! 2. Способ по п.1, отличающийся тем, что галогеном, используемым при химической обработке продукта-сырца, является бром или йод, а серный ангидрид применяют в виде его раствора в серной кислоте с концентрацией от 5 до 60%. ! 3. Способ по любому из пп.1 и 2, отличающийся тем, что упомянутый процесс химической обработки проводят при температуре от 20 до 80°С, лучше 50-70°С, а весовое соотношение серного ангидрида и галогена выбирают в пределах 1-10:1, лучше 1,5-3:1. 1. The method of purification of perfluoroarenes, characterized in that in order to obtain a high-purity product, the raw product is first chemically treated with a mixture of sulfuric anhydride and free halogen, after which the target product is isolated by rectification. ! 2. The method according to claim 1, characterized in that the halogen used in the chemical treatment of the raw product is bromine or iodine, and sulfuric anhydride is used as its solution in sulfuric acid with a concentration of from 5 to 60%. ! 3. The method according to any one of claims 1 and 2, characterized in that the said chemical treatment process is carried out at a temperature of from 20 to 80 ° C, preferably 50-70 ° C, and the weight ratio of sulfuric anhydride and halogen is selected in the range of 1-10 : 1, better than 1.5-3: 1.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009109853/04A RU2404951C1 (en) | 2009-03-18 | 2009-03-18 | Method of purifying perfluoroarenes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009109853/04A RU2404951C1 (en) | 2009-03-18 | 2009-03-18 | Method of purifying perfluoroarenes |
Publications (2)
Publication Number | Publication Date |
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RU2009109853A true RU2009109853A (en) | 2010-09-27 |
RU2404951C1 RU2404951C1 (en) | 2010-11-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2009109853/04A RU2404951C1 (en) | 2009-03-18 | 2009-03-18 | Method of purifying perfluoroarenes |
Country Status (1)
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RU (1) | RU2404951C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2618534C1 (en) * | 2016-06-09 | 2017-05-04 | Федеральное государственное бюджетное учреждение науки Институт химической физики им. Н.Н. Семенова Российской академии наук (ИХФ РАН) | Method of allocation of perfluorobenzene from benzene-perfluorobenzene biasetropic mixture |
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2009
- 2009-03-18 RU RU2009109853/04A patent/RU2404951C1/en active
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Publication number | Publication date |
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RU2404951C1 (en) | 2010-11-27 |
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