US 2006/0070953 A1 · Process for the recovery of tyrosol and hydroxytyrosol from oil mill wastewaters and catalytic oxidation method in order to convert tyrosol in hydroxytyrosol

Abstract

A for preparing Tyrosol and/or Hydroxytyrosol from oil mill wastewaters. includes: a) Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) of the OMW; b) Separation of Tyrosol, Hydroxytyrosol and other phenolic compounds from the concentrated RO; c) Oxidation of the obtained Tyrosol to Hydroxytyrosol in the presence of methyl rhenium trioxide and of hydrogen peroxide in a protic solvent.

Claims19

Dependent claims

A process to treat the oil mill wastewaters (OMW) and especially for the preparation of Tyrosol and/or Hydroxytyrosol, which consists of:

a) Rough Filtration (RF), Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) of the OMW;
b) Chromatographic separation of Tyrosol, Hydroxytyrosol and other phenolic compounds from the concentrated RO;
c) Oxidation of the so obtained Tyrosol to Hydroxytyrosol in the presence of methylrhenium trioxide and of hydrogen peroxide in a protic solvent;
d) Concentration and pulverization of the high molecular weight portion with the recovery of water and compounds with a high added value.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/197,359Filed 5 Aug 2005

Priority

IT MI2004A0016276 Aug 2004

Published

6 Apr 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

B01J 31/165
Containing coordination complexes: polymer immobilised coordination complexes, e.g. organometallic complexes
A23L 33/105
Using additives: plant extracts, their artificial duplicates or their derivatives
A61K 8/347
Alcohols: phenols
A61P 17/00
Drugs for dermatological disorders

Process for the recovery of tyrosol and hydroxytyrosol from oil mill wastewaters and catalytic oxidation method in order to convert tyrosol in hydroxytyrosol

Life of this patent

Process for the recovery of tyrosol and hydroxytyrosol from oil mill wastewaters and catalytic oxidation method in order to convert tyrosol in hydroxytyrosol

Life of this patent

Abstract

Claims19