RECOVERY METHOD AND REUSE METHOD OF OXO ACID CATALYST

Title:

RECOVERY METHOD AND REUSE METHOD OF OXO ACID CATALYST

Document Type and Number:

WIPO Patent Application WO/2014/175152

Kind Code:

A1

Abstract:

Provided are: a method for easily and efficiently recovering an oxo acid catalyst, which is used in a reaction for oxidizing an organic compound by hydrogen peroxide, without deteriorating the yield of the reaction product and the activity of the catalyst; and a method for producing an oxide, wherein an organic compound is oxidized by hydrogen peroxide using an oxo acid catalyst recovered by the above-described method, thereby obtaining a corresponding oxide. A recovery method of an oxo acid catalyst according to the present invention is a method for recovering an oxo acid catalyst that is used in a reaction for oxidizing an organic compound by hydrogen peroxide in a water/organic solvent two phase system, and this recovery method of an oxo acid catalyst is characterized by having the following step. Step 1: The oxo acid catalyst is transferred to the water phase by adjusting the pH within the system to 5.0 or more, and the organic phase is removed.

Inventors:

KITAYAMA KENJI (JP)
SHIBATA HIKARU (JP)
SUZUKI TAKAMASA (JP)
UEHARA KAZUHIRO (JP)

Application Number:

PCT/JP2014/060899

Publication Date:

October 30, 2014

Filing Date:

April 17, 2014

Export Citation:

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Assignee:

DAICEL CORP (JP)

International Classes:

B01J23/30; B01J23/92; B01J38/00; C07D301/12; C07D303/04; C07D303/44

Foreign References:

JPS6440457A	1989-02-10
JP2010106009A	2010-05-13
JP2013032340A	2013-02-14
JP2010229065A	2010-10-14
JPH11130762A	1999-05-18
JP2001017863A	2001-01-23
JP2001017864A	2001-01-23
JP2002059007A	2002-02-26

Other References: