Purifying cumene hydroperoxide

Details Purifying cumene hydroperoxide Purifying cumene hydroperoxide

C - Chemistry, Metallurgy

07

C

260/649.5

C07C 407/00 (2006.01) B01D 1/22 (2006.01)

Patent

CA 1258875

ABSTRACT OF THE DISCLOSURE Crude cumene hydroperoxide is purified by subjecting it to an evaporation step at a pressure of about 2 to 10 (preferably 3 to 7) mg Hg abs. and a temperature of about 150°F. to about 210°F. (pref. about 175°F. to 195°F.) to remove light impurities and then subjecting the residue from the first evaporation step to a second evaporation step also at a temperature of about 135°F. to 210°F. (pref. about 150°F. to 185°F.) but at a pressure of about 0.5 to about 8 (preferably 1 to 3) mm Hg abs. to obtain a distillate significantly reduced in color bodies, water, acetophenone, and dimethylbenzyl alcohol, and sodium.

518524

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