发明名称 |
СПОСОБ ПОЛУЧЕНИЯ ПЕРФТОРАЛКАНСУЛЬФОФТОРИДОВ |
摘要 |
FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to a method for synthesis of perfluoroalkane sulfofluorides used as intermediate compounds in synthesis of perfluoroalkane sulfoacids and their salts, and as a component of cleaning gas possessing the high etching rate value. Invention describes a method for synthesis of perfluoroalkane sulfofluorides that involves fluorination reaction of monohydroperfluoroalkane sulfofluorides with elemental fluorine in the presence of hydrogen fluoride chosen in the amount 8% of monohydroperfluoroalkane sulfofluoride mass wherein hydrogen fluoride is added to the flow of monohydroperfluoroalkane sulfofluoride in the presence of copper chips treated preliminary with fluorine at temperature 120-160°C. Preferable, hydrogen fluoride is used in the amount 8-30% of the latter mass. Proposed method provides the high yield of the end product up to 97.5% and intensification of the fluorination reaction with using the available raw and standard technology. ^ EFFECT: improved preparing method. ^ 3 cl, 9 ex |
申请公布号 |
RU2004138037(A) |
申请公布日期 |
2006.06.10 |
申请号 |
RU20040138037 |
申请日期 |
2004.12.24 |
申请人 |
ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "ГАЛОГЕН" (RU) |
发明人 |
Ильин Алексей Николаевич (RU);Кузнецов Андрей Дмитриевич (RU);Денисенков Владимир Федорович (RU);Нургалиева Светлана Михайловна (RU);Каурова Галина Ивановна (RU);Молдавский Дмитрий Дмитриевич (RU);Биспен Тать на Алексеевна (RU) |
分类号 |
C07C309/80;C07C303/10 |
主分类号 |
C07C309/80 |
代理机构 |
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代理人 |
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