- Production of tetrafluoroethylene and di-acid
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[A] having high yield and purity of the di-acid specific structure simple and safe method for manufacturing. General formula [a]: ICF2 CF2 The fuming sulfuric acid is oxidized by ORf [...] shown, general formula: FCOCF2 After obtaining the di-acid ORf shown, the di-acid reaction with hexafluoropropylene oxide, having the general formula FCOCF (CF3 ) OCF2 CF2 As shown in the di-acid ORf production. [Drawing] no
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Paragraph 0099; 0104-0106
(2018/04/03)
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- MEASUREMENT OF RATE CONSTANTS AND EQUILIBRIUM CONSTANTS OF RI R + I AND I + RI I2 + R FOR R = C3F7, iso-C3F7, C6F13, CF3OCF2CF2, OR C3F7OCF2CF2
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The method of isothermal pyrolysis of an iodide RI can produce highly accurate data about the equilibrium constants and rate constants of the reactions RI R + I and I + RI R + I2, if the rate constant for recombination R + R -> R2 is known.Data on the absolute rate constants of the thermal dissociation of the iodides C3F7I, iso-C3F7I, C6F13I, CF3O(CF2)2I and C3F7O(CF2)2I, and also for their reaction with atomic iodine were obtained for the first time using this technique.The dissociation energies ED (R-I) are 212+/-2, 201+/-2, 202+/-2, 213+/-2, and 213+/-2 kJ/mole, respectively.
- Skorobogatov, G. A.,Dymov, B. P.,Tedeev, R. Sh.
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p. 158 - 165
(2007/10/02)
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