US 12,227,470 B2
Purification of alkyl hydroperoxide by extractive distillation
Bruno Van Hemelryck, Pierre-Benite (FR); Serge Hub, Pierre-Benite (FR); and Philippe Maj, Pierre-Benite (FR)
Assigned to ARKEMA FRANCE, Colombes (FR)
Appl. No. 17/417,409
Filed by ARKEMA FRANCE, Colombes (FR)
PCT Filed Dec. 20, 2019, PCT No. PCT/FR2019/053259
§ 371(c)(1), (2) Date Jun. 23, 2021,
PCT Pub. No. WO2020/136337, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 1874177 (FR), filed on Dec. 26, 2018.
Prior Publication US 2022/0073456 A1, Mar. 10, 2022
Int. Cl. C07C 407/00 (2006.01); B01D 3/40 (2006.01)
CPC C07C 407/003 (2013.01) [B01D 3/40 (2013.01)] 10 Claims
 
1. A process for separating an alkyl hydroperoxide from a dialkyl peroxide, comprising the steps of: a) distilling a composition comprising the alkyl hydroperoxide and said dialkyl peroxide in the presence of alcohol and water, and b) extracting the dialkyl peroxide with the aid of a hydrocarbon, wherein the extraction step b) is performed by contacting said hydrocarbon with the condensate obtained in step a) so as to obtain an organic phase containing said hydrocarbon and also all or some of the dialkyl peroxide and an aqueous phase containing the hydroperoxide, the water and the alcohol.