The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 15, 2002

Filed:

Jul. 12, 1999
Applicant:
Inventors:

Jean-Jacques Charrin, Lyons, FR;

Francoise Igersheim, Lyons, FR;

Antonio Queiroz, Sao Paulo, BR;

Assignee:

Rhodia Chimie, Courbevoie Cedex, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/34 ; C07C 3/774 ; C07C 3/786 ; C07C 3/904 ;
U.S. Cl.
CPC ...
B01D 3/34 ; C07C 3/774 ; C07C 3/786 ; C07C 3/904 ;
Abstract

A process for the recovery of compounds present in a mixture containing residues of heavy products is provided. The process includes conducting a reaction and distillation to obtain the compounds and residues and macerating the residues before they can set to mass. The residues can then be destroyed. The process is particularly suitable for the treatment of the residues obtained in the preparation of phenol from cumene.


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