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.
Patent No.:
Date of Patent:
Nov. 16, 1993
Filed:
May. 24, 1991
Applicant:
Inventors:
Loreno Lorenzoni, Porto Torres, IT;
Salvatore Simula, Ittiri, IT;
Giuseppe Messina, Alghero, IT;
Vittorio Bruzzi, Milan, IT;
Assignee:
Enimont Anic S.r.l., Palermo, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
203 62 ; 203 74 ; 203 77 ; 203 80 ; 568913 ;
Abstract
A stream of raw phenol, coming from the acidic cracking of cumene hydroperoxide, is purified by a process of extractive distillation carried out in the presence of acetophenone.