Hydrogen Peroxide → Diethyl peroxydicarbonate

Temperature

5 °C

Into a 1000-l stirred reactor cooled below 10° C. are introduced 622 kg of an aqueous solution of sodium chloride containing 180 g/kg (that is 510 kg of demineralized water and 112 kg of NaCl), precooled to 5° C. 20.4 kg of ethyl chloroformate and 8.5 kg of aqueous solution of hydrogen peroxide containing 350 g/kg are then introduced successively into the stirred aqueous solution, and finally, very slowly, 36.1 l of aqueous solution of sodium hydroxide containing 200 g/kg, so as to maintain the temperature below 10° C. The density of the aqueous reaction mixture rises to 1.11. 10 minutes after the end of the introduction of the NaOH solution 34.5 kg of diethylhexyl adipate are introduced, precooled to 5° C. After the reaction mixture has been kept stirred for 15 minutes while being cooled to 5° C., the stirring is stopped. The aqueous phase (dense phase) is then separated off after settling out and the organic phase is recovered. The solution of diethyl peroxydicarbonate in diethylhexyl adipate which is thus produced is stored at 5° C. with a view to its subsequent use. Its diethyl peroxydicarbonate content (determined by analysis) is 287 g/kg.

1. temperaturecooled below 10° C.
2. customprecooled to 5° C
3. customprecooled to 5° C
4. customThe aqueous phase (dense phase) is then separated off
5. customthe organic phase is recovered

ORD record

ord-980d6428558b4749b509f8cc97b297cb

Source dataset

uspto-grants-2003_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06617408B2