FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing perfluoro-2-methyl-3-oxahexanoylperoxide that is used as an initiating agent in radical copolymerization of fluorinated olefins. Perfluoro-2-methyl-3-oxahexanoic acid fluoroanhydride is mixed with an perfluoropropylvinyl ester using as an organic solvent. Aqueous solutions of hydrogen peroxide and sodium hydroxide (preferably as 5-10%) are fed to mixture by separate currents simultaneously in cooling being preferably in the range of temperature from 0 to 5 C. The ratio of total volume of aqueous solutions to the mixture volume = (0.57-1.84) : 1 being the parent reagents are taken in the mole ratio hydrogen peroxide : sodium hydroxide : fluoroanhydride = (1.5- 2.5) : (2.0-2.5) : 1, respectively. Method provides simplifying isolation of the end substance, to improve its quality and to enhance safety and yield of product. EFFECT: improved preparing method. 5 cl, 2 tbl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING PERFLUORO-2-METHYL-3-OXAHEXANOYL PEROXIDE | 2002 |
|
RU2241700C2 |
| METHOD OF SYNTHESIS OF COPOLYMER OF TETRAFLUORO-ETHYLENE WITH PERFLUOROPROPYLVINYL ESTER | 2001 |
|
RU2195465C1 |
| METHOD OF SYNTHESIS OF PERFLUORODIACYL PEROXIDE | 2001 |
|
RU2203273C1 |
| METHOD OF SYNTHESIS OF COPOLYMER OF TETRAFLUORO-ETHYLENE WITH HEXAFLUOROPROPYLENE | 2001 |
|
RU2195466C1 |
| PROCESS FOR PRODUCTION TETRAFLUOROETHYLENE COPOLYMERS WITH 2-5 MOL % OF PERFLUOROPROPYL VINYL ETHER | 1999 |
|
RU2156777C1 |
| MODIFIED TETRAFLUOROETHYLENE/ETHYLENE COPOLYMER PRODUCTION PROCESS | 1999 |
|
RU2156776C1 |
| METHOD OF PURIFYING 1,1,1-FLUORODICHLOROETHANE | 1998 |
|
RU2157362C2 |
| METHOD OF PROCESSING VYATKA-KAMA PHOSPHORITE | 2000 |
|
RU2174968C1 |
| METHOD OF ISOLATING CHLORAL | 1999 |
|
RU2160247C1 |
| METHOD OF CONCENTRATING AQUEOUS DISPERSION OF TETRAFLUOROETHYLENE/HEXAFLUOROPROPYLENE COPOLYMER | 2003 |
|
RU2235733C1 |
