Method for extraction of dihydroperoxide

Details Method for extraction of dihydroperoxide Method for extraction of dihydroperoxide

1975-08-22

1977-11-22

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C17902

Patent

active

040596370

ABSTRACT:
A method for extracting a dihydroperoxide of a dialkylbenzene of the formula, ##STR1## wherein each R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently a lower alkyl group, from an aqueous alkali solution of the said dihydroperoxide with at least one organic solvent selected from the group consisting of C.sub.4 -C.sub.10 ketones, C.sub.4 -C.sub.10 ethers and C.sub.4 -C.sub.8 alcohols, which comprises extracting the dihydroperoxide by a countercurrent multi-stage extraction at a temperature between 0.degree. and 85.degree. C with a temperature gradient, the aqueous alkali solution being fed to the lower temperature zone, the organic solvent being fed to the higher temperature zone, and each aqueous alkali solution and organic solvent being fed countercurrently, whereby the dihydroperoxide is obtained in the form of organic solvent solution from the lower temperature zone.

REFERENCES:
patent: 2856432 (1958-10-01), Conner et al.
patent: 2856433 (1958-10-01), Thompson
patent: 3190923 (1965-06-01), Sodomann et al.
patent: 3190924 (1965-06-01), Sodomann et al.

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