25038-02-2Relevant articles and documents
SYNTHESIS OF PENTAFLUOROSELENIUMOXIDE FLUOROCARBONS
Schack, Carl J.,Christe, Karl O.
, p. 163 - 172 (1988)
The reaction of xenon bis-pentafluoroseleniumoxide, Xe(OSeF5)5, with the haloolefins, CF2=CF2, CF3CF=CF2, CF2=CFCl, and CF2=CFH, results in the low to moderate yield addition of two SeF5O- groups to the double bond.These are the first examples of this type of addition.From c-C5F8 and the above olefins these same reactions also gave as products, C2F5OSeF5, n-C3F7OSeF5, c-C5F9OSeF5, and SeF5OCF2COCl in higher yields than the bis SeF5O- compounds.Surprisingly, those olefins capable of forming thermally stable epoxides, i.e.C3F6 and c-C5F8, were found to produce significant yields of the corresponding epoxides as a by-product in these reactions, while the remaining olefins gave significant amounts of acid fluorides instead.Characterizing data are presented for all of these new RfOSeF5 compounds.
Preparation method of hexafluoropropylene oxide (by machine translation)
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Paragraph 0033-0050, (2019/12/31)
The application belongs to, the technical field of inorganic chemistry, and particularly relates to a preparation method of. hexafluoropropylene oxide, and the preparation method of hexafluoropropene oxide comprises the, following steps of: reacting a nitrogen oxide, compound, with hexafluoropropylene as a,raw material to obtain hexafluoropropylene oxide as a raw material. (by machine translation)
METHOD FOR PRODUCING FLUORINE-CONTAINING EPOXY COMPOUND
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Paragraph 0099; 0100; 0101; 0102; 0103, (2019/03/15)
PROBLEM TO BE SOLVED: To provide a method for producing a fluorine-containing epoxy compound that makes it possible to obtain a target product in high yield without conducting the reaction in a minute space necessarily. SOLUTION: The present invention provides a method for producing a fluorine-containing epoxy compound represented by formula (1), including step A1 of reacting a fluorine-containing olefin compound with sodium hypochlorite penta-hydrate, or step A2 of reacting a fluorine-containing olefin compound with hypohalite in the presence of an acid acceptor such as a basic salt having 4-12 pKa (25°C) [R1-R3 are H, F, Cl or Rf; Rf is (halo) fluoroalkyl group]. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
Method for synthesis of hexafluoropropylene oxide by use of two-liquid-phase buffer solution method under atmospheric pressure
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Paragraph 0055; 0056, (2016/11/28)
The present invention discloses a method for synthesis of hexafluoropropylene oxide by use of a two-liquid-phase buffer solution method under atmospheric pressure, and belongs to the technical field of fluorine chemical industry, and the method is as follows: under atmospheric pressure, sodium hypochlorite is used as an oxidant, a buffer system is used for assisting reaction, C12-C18 alkyl trimethyl ammonium bromide is used as a catalyst, and the two-liquid-phase method is used for synthesis of hexafluoropropylene oxide, the specific steps of the two-liquid-phase method are as follows: under atmospheric pressure, the buffer system is dissolved in an aqueous sodium hypochlorite solution, and then the C12-C18 alkyl trimethyl ammonium bromide and toluene are added into the aqueous sodium hypochlorite solution to form a mixture. The method is mild in reaction conditions, safe and reliable in production, low in power consumption, simple in process, low in production cost, better in environmental protection property, and high in economic efficiency.
Prepare hexafluoropropylene oxide's device under gentle condition in succession
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Paragraph 0021; 0022; 0023; 0024, (2016/12/16)
The utility model discloses a prepare hexafluoropropylene oxide's device under gentle condition in succession, including premixer, peristaltic pump, gaseous storage tank, spiral reactor, liquid separation jar and gas collection jar, the other end of peristaltic pump pass through the three -way valve with gaseous storage tank and spiral reactor's matter entrance connects, the export of spiral reactor's material through the three -way valve with liquid separation jar and gas collection jar are connected. Compared with the prior art, the utility model discloses utilize spiral pipe continuous reactor to realize continuous production hexafluoropropylene oxide under gentle condition, spiral reactor had both done benefit to the gas -liquid intensive mixing, did benefit to gas -liquid quickly separating again, and the conversion rate of reaction is high, and the selectivity is good.
A process for the preparation of hexafluoropropylene oxide
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Paragraph 0028-0029, (2017/03/18)
The invention discloses a preparation method for hexafluoropropylene oxide. Hexafluoropropylene is used for preparing hexafluoropropylene oxide through a molecular oxygen liquid-phase oxidation method. A hexafluoropropylene solvent used in the molecular oxygen liquid-phase oxidation method is mixture of perfluoropolyethers and fluorocarbon, and a metallic oxide catalyst is added in a reaction process of the molecular oxygen liquid-phase oxidation method. The preparation method has the advantages that the metallic oxide catalyst is added so that temperature required by a reaction is reduced, solubility of hexafluoropropylene in the solvent is greatly increased, and reaction selectivity is improved.
METHOD FOR PRODUCING HEXAFLUOROPROPYLENE OXIDE
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Page/Page column 4-5, (2012/02/01)
The present invention provides a novel method for producing hexafluoropropylene oxide, which can attain a high HFPO selectivity without using a phase transfer catalyst. Hexafluoropropylene (HFP), a water-soluble and aprotic organic solvent, and an aqueous solution of an oxidizing agent are introduced into a small space, thereby bringing into contact with each other and reacting hexafluoropropylene with the oxidizing agent to obtain hexafluoropropylene oxide (HFPO).
GASEOUS DIELECTRICS WITH LOW GLOBAL WARMING POTENTIALS
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, (2010/12/31)
A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.
Oxidation of hexafluoropropylene with oxygen to hexafluoropropylene oxide
Wroblewska, Agnieszka,Milchert, Eugeniusz,Meissner, Egbert
body text, p. 272 - 277 (2010/04/28)
A method for pressure oxidation of hexafluoropropylene (HFP) with oxygen to hexafluoropropylene oxide (HFPO) has been presented. The oxidation was carried out in a periodically operated reactor. The influence of temperature, the nature of the solvent, and the molar ratio of HFP/O2 on the course of oxidation was investigated during the preliminary studies. The magnitudes describing the process were the conversion of HFP, the selectivity of transformation to HFPO in relation to HFP consumed, and the yield of HFPO in relation to the initial amount of HFP. The optimisation of the technological parameters of oxidation, temperature, HFP/O2 molar ratio, and the reaction time was performed by the application of a statistical experimental design method. The function describing the process was the yield of HFPO.
PROCESS FOR PRODUCTION OF HEXAFLUOROPROPYLENE OXIDE
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Page/Page column 8-9, (2009/09/05)
There is provided a process for producing hexafluoropropylene oxide which is novel and capable of achieving a higher yield. An organic phase comprising hexafluoropropylene (HFP) in an organic solvent and an aqueous phase comprising an oxygen-containing oxidizing agent in water are supplied to a small space (or microspace), preferably together with a phase transfer catalyst. The organic phase and the aqueous phase are contacted with each other in the small space, thereby reacting hexafluoropropylene (HFP) with the oxygen-containing oxidizing agent, preferably by an action of the phase transfer catalyst to give hexafluoropropylene oxide (HFPO). After the reaction, the organic phase and the aqueous phase are taken out from the small space to obtain an organic phase comprising the hexafluoropropylene oxide (HFPO).
