公开(公告)号：US20180304227A1

公开(公告)日：2018-10-25

申请号：US15768684

申请日：2016-10-26

Applicant: Arkema France

Inventor： Albert BLUM ,  Philippe MAJ ,  Serge HUB

IPC: B01J19/24 ,  B01J19/00 ,  C07C407/00

CPC classification number: B01J19/241 ,  B01J19/0006 ,  B01J19/248 ,  B01J2219/00033 ,  B01J2219/00159 ,  B01J2219/00164 ,  C07C407/00 ,  C07C409/38

Abstract: The present invention concerns a method and an apparatus (10, 20) for a continuous preparation of organic peroxides, with the reactor comprising at least one flow channel (1, 1a, 1b) configured as a reaction zone; an inlet system (2) in fluid communication with a first end of the at least one flow channel and configured for introducing two or more substances or a combination of substances into the at least one flow channel; an outlet system (3) in fluid communication with a second end of the at least one flow channel, the second end being located downstream of the first end and the outlet system being configured for extracting a reaction product present at the second end; an oscillatory system (4, 5) configured for superimposing an oscillatory flow on the flow of substances passing through the at least one flow channel, the oscillatory being effected in at least a section of the at least one flow channel; and a controller configured to implement the method by controlling the inlet system to introduce, according to a first time characteristic, at least two substances or a combination of substances into the at least one flow channel, the oscillatory system to superimpose an oscillatory flow on at least a part of the flow of substances passing through the at least one flow channel, and the outlet system to extract, on an ongoing basis, the reaction product formed in the flow channel from the substances introduced such that the output mass flow rate corresponding to the sum of the input mass flow rates.

公开(公告)号：US20220073457A1

公开(公告)日：2022-03-10

申请号：US17417427

申请日：2019-12-20

Applicant: ARKEMA FRANCE

Inventor： Philippe MAJ ,  Albert BLUM ,  Serge HUB ,  Bruno VAN HEMELRYCK

IPC: C07C407/00 ,  C08K5/14 ,  B01D3/14 ,  B01D11/04

Abstract: The present invention relates to a method for purifying a mixture containing at least one alkyl hydroperoxide, preferably tert-butyl hydroperoxide or tert-amyl hydroperoxide, and at least one corresponding dialkyl hydroperoxide, said method comprising at least one step of extraction with water and at least one separation step which is carried out within the aqueous phase, obtained following the extraction step, in order to recover an aqueous solution which is rich in alkyl hydroperoxide. The invention also relates to an aqueous composition which is rich in alkyl hydroperoxide and contains at least 0.1% by weight of dialkyl peroxide in relation to the total weight of the composition.